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98 OFC/NFOEC 2005 Conference Notes Thursday, March 10 Ballroom A Ballroom B Ballroom C Ballroom D 8:30 a.m.–10:30 a.m. OThA • Nonlinear Fibers and Effects Roger H. Stolen; Virginia Tech, USA, Presider 8:30 a.m.–10:30 a.m. OThB • Microwave Photonics Dalma Novak; Univ. of Melbourne, Australia, Presider 8:30 a.m.–10:30 a.m. OThC • System Measurements and Studies Itsuro Morita; KDDI R&D Labs, Japan, Presider 8:30 a.m.–10:30 a.m. OThD • MEMS Dan M. Marom; Bell Labs, Lucent Technologies, USA, Presider OThD1 • 8:30 a.m. Invited Tunable MEMS Devices for Reconfigurable Optical Networks, Jill D. Berger, Doug Anthon, Subrata Dutta, Fedor Ilkov, I-Fan Wu; Iolon Inc., USA. Transmit- ters and receivers based on MEMS-tuned external cavity diode lasers and diffraction grating filters deployed in reconfigurable optical networks provide up to 6.4 THz tuning in 15 ms with ± 1.25 GHz fre- quency accuracy and superior optical performance in compact packages. OThC1 • 8:30 a.m. Modeling RZ-DPSK Transmission— Simulations and Measurements for an Installed Submarine System, William T. Anderson, Li Liu, Yi Cai, Alexei Pilipetskii, Jin-Xing Cai, Michael Vaa, Morten Nissov, Dmitriy Kovsh; Tyco Telecomunications, USA. We model RZ-DPSK transmission in an installed 6,550 km trans-Atlantic sub- marine system. Simulations agree well with measurements. Simulations predict that nonlinear noise will not eliminate the RZ-DPSK advantage over RZ-OOK even for trans-Pacific distances. OThB1 • 8:30 a.m. Tutorial Microwave Signal Processing Using Op- tics, Jose Capmany; Optical Communica- tions Group, IMCO2 Res. Institute, Spain. We cover the fundamental concepts and applications of photonic filters for Rf, microwave and millimetre signal process- ing, addressing their two main fields of application: A) Filters for RF systems and applications and B) Filters for Optical Transmission systems and networks. Jose Capmany was born in Madrid, Spain in 1962. He received the Ingeniero de Telecomunicación and Ph.D. degrees from the Universidad Politécnica de Madrid in 1987. He is currently at the Departamento de Comunicaciones, Universidad Politécnica de Valencia since 1991, and is now full professor in optical communica- tions, systems and networks since 1996. Capmany has published over 200 papers in international refereed journals and conferences, conducted over 25 research projects and has been a member of the Technical Program Committees of the European Conference on Optical Com- munications (ECOC) and the Optical Fiber Communication Conference (OFC) amongst others. He is the current chair- man of the LEOS Spanish Chapter, a Fel- low of OSA and the Institution of Electri- cal Engineers (IEE). Capmany is also a member of the editorial board of several OThA1 • 8:30 a.m. Transparent Bi 2 O 3 -Based Nonlinear Optical Fiber with Erbium Doping, Tomoharu Hasegawa 1 , Tatsuo Nagashima 1 , Naoki Sugimoto 1 , Kazuro Kikuchi 2 ; 1 Asahi Glass Co., Ltd., Japan, 2 Univ. of Tokyo, Japan. An erbium-doped Bi 2 O 3 -based nonlinear optical fiber is developed to reduce the propagation loss. The signifi- cantly enhanced four-wave-mixing and its wavelength dependence reveal that the propagation loss is completely compen- sated by the Er 3+ excitation. OThA2 • 8:45 a.m. Multi-Step-Index Bismuth-Based Highly Nonlinear Fiber with Low Propagation Loss and Splicing Loss, Tatsuo Nagashima 1 , Tomoharu Hasegawa 1 , Seiki Ohara 1 , Naoki Sugimoto 1 , Kazuro Kikuchi 2 ; 1 Asahi Glass Co., Ltd., Japan, 2 Univ. of Tokyo, Japan. Propagation loss and practi- cal fusion-splicing loss of bismuth-based fibers are reduced to 0.8 dB/m and 2.6 dB/ point, respectively, while maintaining high nonlinearity of 1100 W -1 km -1 by modify- ing the glass composition and eliminating the cladding mode. OThC2 • 8:45 a.m. Study of Polarization Driven Q Fluctua- tions on Deployed Undersea Fiber Sys- tems, Alexei N. Pilipetskii, Lee J. Richardson, Ekaterina A. Golovchenko, Alan J. Lucero, Carl R. Davidson; Tyco Telecommunications, USA. We use a simple model to analyze the polarization driven performance fluctuations in an optical transmission system. The model shows good agreement with data accumulated over a long period of time on deployed systems

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98 OFC/NFOEC 2005 Con f e r en ce

Notes

Thur

sday

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arch

10

Ballroom A Ballroom B Ballroom C Ballroom D

8:30 a.m.–10:30 a.m.OThA • Nonlinear Fibers andEffectsRoger H. Stolen; Virginia Tech,USA, Presider

8:30 a.m.–10:30 a.m.OThB • Microwave PhotonicsDalma Novak; Univ. ofMelbourne, Australia, Presider

8:30 a.m.–10:30 a.m.OThC • SystemMeasurements and StudiesItsuro Morita; KDDI R&D Labs,Japan, Presider

8:30 a.m.–10:30 a.m.OThD • MEMSDan M. Marom; Bell Labs, LucentTechnologies, USA, Presider

OThD1 • 8:30 a.m. InvitedTunable MEMS Devices forReconfigurable Optical Networks, Jill D.Berger, Doug Anthon, Subrata Dutta, FedorIlkov, I-Fan Wu; Iolon Inc., USA. Transmit-ters and receivers based on MEMS-tunedexternal cavity diode lasers and diffractiongrating filters deployed in reconfigurableoptical networks provide up to 6.4 THztuning in 15 ms with ±1.25 GHz fre-quency accuracy and superior opticalperformance in compact packages.

OThC1 • 8:30 a.m.Modeling RZ-DPSK Transmission—Simulations and Measurements for anInstalled Submarine System, William T.Anderson, Li Liu, Yi Cai, Alexei Pilipetskii,Jin-Xing Cai, Michael Vaa, Morten Nissov,Dmitriy Kovsh; Tyco Telecomunications,USA. We model RZ-DPSK transmission inan installed 6,550 km trans-Atlantic sub-marine system. Simulations agree wellwith measurements. Simulations predictthat nonlinear noise will not eliminate theRZ-DPSK advantage over RZ-OOK evenfor trans-Pacific distances.

OThB1 • 8:30 a.m. Tutorial

Microwave Signal Processing Using Op-tics, Jose Capmany; Optical Communica-tions Group, IMCO2 Res. Institute, Spain.We cover the fundamental concepts andapplications of photonic filters for Rf,microwave and millimetre signal process-ing, addressing their two main fields ofapplication: A) Filters for RF systems andapplications and B) Filters for OpticalTransmission systems and networks.

Jose Capmany was born in Madrid, Spainin 1962. He received the Ingeniero deTelecomunicación and Ph.D. degrees fromthe Universidad Politécnica de Madrid in1987. He is currently at the Departamentode Comunicaciones, UniversidadPolitécnica de Valencia since 1991, and isnow full professor in optical communica-tions, systems and networks since 1996.

Capmany has published over 200 papersin international refereed journals andconferences, conducted over 25 researchprojects and has been a member of theTechnical Program Committees of theEuropean Conference on Optical Com-munications (ECOC) and the OpticalFiber Communication Conference (OFC)amongst others. He is the current chair-man of the LEOS Spanish Chapter, a Fel-low of OSA and the Institution of Electri-cal Engineers (IEE). Capmany is also amember of the editorial board of several

OThA1 • 8:30 a.m.Transparent Bi2O3-Based NonlinearOptical Fiber with Erbium Doping,Tomoharu Hasegawa1, Tatsuo Nagashima1,Naoki Sugimoto1, Kazuro Kikuchi2; 1AsahiGlass Co., Ltd., Japan, 2Univ. of Tokyo,Japan. An erbium-doped Bi2O3-basednonlinear optical fiber is developed toreduce the propagation loss. The signifi-cantly enhanced four-wave-mixing and itswavelength dependence reveal that thepropagation loss is completely compen-sated by the Er3+ excitation.

OThA2 • 8:45 a.m.Multi-Step-Index Bismuth-Based HighlyNonlinear Fiber with Low PropagationLoss and Splicing Loss, TatsuoNagashima1, Tomoharu Hasegawa1, SeikiOhara1, Naoki Sugimoto1, Kazuro Kikuchi2;1Asahi Glass Co., Ltd., Japan, 2Univ. ofTokyo, Japan. Propagation loss and practi-cal fusion-splicing loss of bismuth-basedfibers are reduced to 0.8 dB/m and 2.6 dB/point, respectively, while maintaining highnonlinearity of 1100 W-1km-1 by modify-ing the glass composition and eliminatingthe cladding mode.

OThC2 • 8:45 a.m.Study of Polarization Driven Q Fluctua-tions on Deployed Undersea Fiber Sys-tems, Alexei N. Pilipetskii, Lee J.Richardson, Ekaterina A. Golovchenko,Alan J. Lucero, Carl R. Davidson; TycoTelecommunications, USA. We use a simplemodel to analyze the polarization drivenperformance fluctuations in an opticaltransmission system. The model showsgood agreement with data accumulatedover a long period of time on deployedsystems

OFC Te chn i c a l Sess i o n Abs t r a c t s 99

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NotesBallroom E Room 303A-B Room 303C-D Room 304A-B

8:30 a.m.–10:30 a.m.OThE • All-Optical SignalProcessing IILeo Spiekman; Genexis,Netherlands, Presider

8:30 a.m.–10:30 a.m.OThF • Raman AmplifiersJake Bromage; Univ. of Rochester,USA, Presider

8:30 a.m.–10:30 a.m.OThG • Access NetworksMark Feuer; AT&T, USA,Presider

8:30 a.m.–10:30 a.m.OThH • PerformanceMonitoringKlaus Petermann; TU Berlin,Germany, Presider

OThH1 • 8:30 a.m.In-Line Signal Quality Monitoring Basedon Asynchronous Amplitude Histogramfor NRZ-DPSK Systems, Zhihong Li1,Yixin Wang1, Chao Lu1,2; 1Inst. forInfocomm Res., Singapore, 2School of Elec-trical and Electronic Engineering, NanyangTechnological Univ., Singapore. We havedemonstrated novel in-service signal qual-ity monitoring technique for constantamplitude NRZ-DPSK signal using asyn-chronous amplitude histogram evaluation.Information about dispersion and OSNRcan be directly extracted from the ampli-tude histogram of NRZ-DPSK signal.

OThG1 • 8:30 a.m. InvitedAdvances in Optical Access Networks,Glen Kramer1, Keiji Tanaka2; 1Teknovus,USA, 2KDDI R&D Labs, Japan. EPONstandard (IEEE 802.3ah) only coversphysical and data link layers; the rest isconsidered out-of-scope. This article ex-plores several interesting research prob-lems brought forward by EPON architec-ture, but left out by the standard.

OThF1 • 8:30 a.m.Noise Induced by Distributed RamanAmplification in a Forward-PumpingScheme Using FBG-Stabilized Diodes,Catherine Martinelli, Anne Durécu-Legrand, Laurence Lorcy, DominiqueMongardien, Dominique Bayart; Alcatel,Res. and Innovation Dept., France. ForwardRaman amplification using FBG-stabilizeddiodes yields higher signal RIN than ex-pected from the Raman-gain-mediatedtransfer function. We demonstrate thatthis extra noise originates from pump-signal nonlinear parametric interactionseven far from the phase-matching condi-tion.

OThE1 • 8:30 a.m. InvitedDesign and Applications of All-OpticalRegenerators, Jiten Sarathy; Alphion Corp.,USA. The applications and design consid-erations that drive the development ofInP-based all-optical regenerators aresummarized.The applications of the 2Rregenerator are enumerated along with thedesign considerations for the fabricationof these devices.

OThF2 • 8:45 a.m.40 Gb/s WDM-Transmission with EDFAsin Comparison to Raman AmplifiedTransmission with Raman Fiber Lasersas First-Order and Second-Order Pump,Elmar Schulze, Andreas Warnke, FriedrichRaub; Heinrich-Hertz-Inst., Germany. Weinvestigated a 16 x 40 Gb/s long-haultransmission to prove whether Ramanfiber lasers can replace LDs used for co-directional second-order pumped Ramanamplifiers (RA) and compared the RA tocounter pumped RA and EDFAs.

OThH2 • 8:45 a.m.A Novel Broadband Asynchronous His-togram Technique for Optical Perfor-mance Monitoring, Sarah D. Dods1, PeterM. Farrell2, Kerry Hinton3, Don F. Hewitt1;1Australian Photonics Cooperative Res. Ctr.,Photonics Res. Lab, Australia, 2Natl. ICTAustralia, Victoria Res. Lab, Australia,3Univ. of Melbourne, Australia. We com-bine tunable narrowband filtering withasynchronous sampling to produce broad-band histograms that measure frequency-resolved signal distortion. We demonstratethe technique using chirped WDM signalsaffected by filter detuning, dispersion andnonlinear effects.

100 OFC/NFOEC 2005 Con f e r en ce

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OThA • Nonlinear Fibers andEffects—Continued

OThB • MicrowavePhotonics—Continued

OThC • SystemMeasurements and Studies—Continued

OThD • MEMS—Continued

OThA3 • 9:00 a.m.Heavy Metal Oxide Glass Holey Fiberswith High Nonlinearity, Heike Ebendorff-Heidepriem, Periklis Petropoulos, VittoriaFinazzi, Simon Asimakis, Julie Leong,Fumihito Koizumi, Ken Frampton, Roger C.Moore, David J. Richardson, Tanya M.Monro; Optoelectronics Res. Ctr., Univ. ofSouthampton, UK. We report on the devel-opment of small-core high-NA lead sili-cate and bismuth glass holey fibers. Wemeasured high nonlinearity (1100 W-1

km-1 in bismuth holey fiber) and predictednear-zero or anomalous dispersion at1550 nm.

scientific journals and has been a guesteditor of IEEE JSTQE on ArrayedWaveguide grating devices.

OThC3 • 9:00 a.m. InvitedDPSK Performance in Field and Labora-tory Experiments, Dimitri G. Foursa; TycoTelecommunications, USA. Recent long-haul laboratory and field studies using theDPSK format are discussed. Comparisonwith OOK performance is presented.DPSK performance is discussed withrespect to a number of system parameters.

OThD2 • 9:00 a.m.Micro-Machined XY Stage for FiberOptics Module Alignment, Marc Epitaux1,Jean-Marc Verdiell1, Yves Pétremand2,Wilfried Noell2, Nicoolas F. De Rooij2; 1Intel,USA, 2Inst. of Microtechnology, Univ. ofNeuchâtel, Switzerland. A novel Siliconmicro-machined XY stage with a hybridmicro-lens for fiber optics module align-ment is presented. MEMS micro-align-ment method and Silicon chip design aredescribed. Finally the micro-fabricateddevice performance is discussed.

OThD3 • 9:15 a.m.Development of MEMS-Based OpticalSurge Suppressor, Toru Hirata1, IchiroMitama1, Masahiro Abe1, Kikuo Makita2,Kazuhiro Shiba2, Kazuhiro Hane3, MinoruSasaki3; 1Sumitomo Heavy Industries, Ltd.,Japan, 2NEC Corp., Japan, 3Tohoku Univ.,Japan. A MEMS-based optical surge sup-pressor is proposed. The device consists ofMEMS-shutter and photovoltaic detectorthat triggers the shutter through in-linemonitoring of surge light around powerlevel of 10dBm with insertion loss of1.5dB.

OThA4 • 9:15 a.m.Generation of Ultra-Flat SPM-Broad-ened Spectra in a Highly Nonlinear FiberUsing Pulse Pre-Shaping in a Fiber BraggGrating, Paulo J. Almeida, PeriklisPetropoulos, Morten Ibsen, David J.Richardson; Univ. of Southampton, UK. Wepropose a new approach to generatingspectrally flat supercontinuum pulsesbased on seeding a commercial nonlinearfibre with pump pulses shaped using asuper-structured fiber Bragg grating.Experimental results confirm the viabilityof the approach.

OThA5 • 9:30 a.m.Single-Mode High-Index-Core One-Dimensional Microstructured Fiber withHigh Nonlinearity, Xian Feng, Tanya M.Monro, Periklis Petropoulos, VittoriaFinazzi, David J. Richardson; Optoelectron-ics Res. Ctr., Univ. of Southampton, UK. Wereport the first fabrication of high-index-core one-dimensional microstructuredoptical fiber with high index-contrastlayers. Extrusion is utilized to fabricate themicrostructured preform. Single modeguidance and high nonlinearity were ob-served in the fiber.

OThC4 • 9:30 a.m.32 x 11.4 Gbit/s Transmission over 4000km Using Dispersion Managed 200 kmSpans, Akira Hagisawa, Noriyuki Takeda,Eiichi Shibano, Hidenori Taga, Koji Goto;KDDI Submarine Cable Systems Inc., Ja-pan. We have transmitted 32 x 11.4 Gbit/ssignals over 4000 km using 200 km spanswith pump power applicable for underseacable system. We believe that the resultshows the feasibility of the 200 km spansfor undersea cable system.

OThD4 • 9:30 a.m. Tutorial

Current Trends in MEMS, Ming Wu;Univ. of California at Berkeley, USA. Awide range of MEMS technologies weredeveloped during the telecom boom. Notall of them survived the downturn. Thistutorial will discuss the current trends inOptical MEMS that emphasize integrationand cost effectiveness.

OThB2 • 9:30 a.m.Microwave Signal Transmission over aDirectly-Modulated Radio-over-FiberLink Using Cascaded SemiconductorOptical Amplifiers, Xin Qian, PeterHartmann, Adrian Wonfor, Jonathan D.Ingham, Richard V. Penty, Ian H. White;Dept. of Engineering, Univ. of Cambridge,UK. We demonstrate a record 150kmtransmission of microwave signals by adirectly-modulated radio-over-fiber linkwith a bit-error-rate of less than 10-12.Cascaded semiconductor optical amplifi-ers are employed in this link to extend thetransmission link length.

OFC Te chn i c a l Sess i o n Abs t r a c t s 101

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NotesBallroom E Room 303A-B Room 303C-D Room 304A-B

OThE • All-Optical SignalProcessing II—Continued

OThF • Raman Amplifiers—Continued

OThG • Access Networks—Continued

OThH • PerformanceMonitoring—Continued

OThE2 • 9:00 a.m.40 Gb/s Fast-Locking All-Optical PacketClock Recovery, Leontios Stampoulidis1,Efstratios Kehayas1, HerculesAvramopoulos1, Yong Liu2, EduwardTangdiongga2, Harmen J. Dorren2; 1Natl.Technical Univ. of Athens, Greece,2Eindhoven Univ. of Technology, Nether-lands. We demonstrate instantaneous 40Gb/s clock extraction from 1 ns long datapackets separated by 750 ps. The circuitcomprises a Fabry-Perot filter, an all-optical power limiting gate, and requiresvery short inter-packet guardbands.

OThF3 • 9:00 a.m.Third-Order Cascaded Raman Amplifi-cation Benefits for 10 Gbits/s WDMUnrepeated Transmission Systems,Stefano Faralli1, Simone Sugliani2, GiovanniSacchi2, Fabrizio Di Pasquale1, SergueiPapernyi3; 1Scuola Superiore Sant’Anna,Italy, 2Photonic Networks Natl. Lab CNIT,Italy, 3MPB Communications Inc., Canada.Benefits provided by third-order Ramanpumping in unrepeated WDM transmis-sion systems are quantified in terms ofBER performances at 10 Gb/s. Double-Rayleigh scattering noise induces trans-mission penalties at very high on-offRaman gain and must be kept under con-trol.

OThG2 • 9:00 a.m.A Novel Admission Control System forBandwidth on Demand Ethernet Ser-vices over Optical Transport Networks,Haidar A. Chamas1, William Bjorkman2,Mohamed Ali1; 1GSUC/CUNY, USA,2Verizon Communications, USA. A novelscheme used in conjunction with MultipleSpanning Trees Protocol to control anEthernet Virtual Connection admissioninto a Service Provider optical networkwith the most efficient path selectionthrough the Ethernet Layer-2 network.

OThH3 • 9:00 a.m.PMD-Insensitive DOP-Based OSNRMonitoring by Spectral SOP Measure-ments, Mats Sköld, Bengt-Erik Olsson,Henrik Sunnerud, Magnus Karlsson;Photonics Lab, Chalmers Univ. of Technol-ogy, Sweden. We present a DOP-basedOSNR monitoring method with spectralSOP measurement to perform OSNRmeasurements insensitive to PMD. Mea-surements at OSNR=25 dB andDGD=32% of bitslot is performed with astandard deviation of 0.67 dB.

OThH4 • 9:15 a.m.High Resolution and High Speed Wave-length-Parallel Polarization Sensor forDense WDM Systems, Shawn X. Wang,Shijun Xiao, Andrew M. Weiner; PurdueUniv., USA. We report on a wavelength-parallel polarization sensor with potentialto perform ≤ 4 GHz-spaced sub-channelpolarization measurement for multipleDense WDM channels in parallel, withmeasurement time of less than 5 ms.

OThG3 • 9:15 a.m.200 km CWDM Transmission Using aHybrid Amplifier, Patrick P. Iannone,Kenneth C. Reichmann, Xiang Zhou,Nicholas J. Frigo; AT&T Lab-Res., USA. Wereport a 60nm bandwidth SOA-Ramanhybrid amplifier for CWDM. The Ramansection increases gain, reduces gain tilt,and decreases saturation inducedcrosstalk. The amplifier is used in a 4-channel, 200-km transmission experi-ment.

OThF4 • 9:15 a.m.Six-Order Cascaded Raman Amplifica-tion, Serguei Papernyi1, Vladimir Ivanov1,Yosushi Koyano2, Hiroyoshi Yamamoto2;1MPB Communications Inc., Canada,2Sumitomo Electric Industries LTD, Japan.Sixth-order Raman amplification is dem-onstrated for the first time and shown toprovide >10 dB budget improvement.Raman amplifiers of differing orders arecompared in several commercial fibersand optimal Raman gains are presented.

OThE3 • 9:15 a.m.40Gbps Operation of an Offset QuantumWell Active Region Based Widely-Tun-able All-Optical Wavelength Converter,Vikrant Lal, Milan L. Masanovic, Joseph A.Summers, Larry A. Coldren, Daniel J.Blumenthal; Univ. of California at SantaBarbara, USA. We demonstrate for thefirst time 40Gbps operation of a quantumwell based monolithically-integratedwidely-tunable all-optical wavelengthconverter. We show open eyes at40GbpsRZ with an output switching win-dow of 6ps and low pattern dependenceacross a 25nm output tuning.

OThE4 • 9:30 a.m.Experimental Demonstration ofFemtosecond Switching of a Fully Pack-aged All-Optical Switch, Chee Kim Yow1,Yew Jun Chai1, Dimitri Reading-Picopoulos1, Richard Vincent Penty1, IanHugh White1, Christopher G. LeBurn2,Alexander A. Lagatsky2, Alan McWilliam2,C. T. Brown2, Wilson Sibbett2, GraemeMaxwell3, Robert McDougall3; 1Univ. ofCambridge, UK, 2Univ. of St. Andrews, UK,3Ctr. for Integrated Photonics, UK. Weexperimentally demonstrate femtosecondswitching of a hybrid-integrated Mach-Zehnder switch. A record switching speedof 620fs at full-width-half-maximum isachieved.

OThF5 • 9:30 a.m. InvitedHigh-Performance Distributed RamanAmplification Systems: Practical Aspectsand Field Trial Results, Hiroji Masuda,Masahito Tomizawa, Yutaka Miyamoto;NTT Network Innovation Labs, Japan. Weintroduce high-performance distributedRaman amplification (DRA) systemsemploying a DRA/EDFA hybrid amplifierscheme with practical aspects based onsafety considerations. We also describesuccessful field trial results using thescheme with high pump-efficiency.

OThG4 • 9:30 a.m.Quality of Service Support over SUC-CESS-DWA: A Highly Evolutional andCost-Effective Optical Access Network,Yu-Li Hsueh1, Matthew S. Rogge1, Wei-TaoShaw1, Shu Yamamoto2, Leonid G.Kazovsky1; 1Stanford Univ., USA, 2KDDILabs, USA, USA. We investigate the sched-uling algorithms with quality of servicesupport for a novel optical access network,the SUCCESS-DWA PON. Results showthat the high-priority traffic exhibits goodpacket delay performance in the proposedscheduling algorithms.

OThH5 • 9:30 a.m.Quadrature-Mixer Based Receiver forImproved Measurement of the OpticalPhase Transfer Function, David J. Krause,John C. Cartledge; Queen’s Univ., Canada.A RF quadrature-mixer based receiver isused to increase the bandwidth of thestimulus in measuring the optical phasetransfer function. The technique is dem-onstrated for stimuli in the range of 1 kHzto 10 MHz.

102 OFC/NFOEC 2005 Con f e r en ce

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OThA6 • 9:45 a.m.Forward and Backward Brillouin Scatter-ing in a Holey Fiber, Yoshinori Inoue,Takamitsu Aiba, Noritaka Taguchi, ShingoTanaka, Nori Shibata; Optowave Lab, Inc.,Japan. Forward and backward Brillouinscattering spectra are measured for a holeyfiber in the 1525-1585 nm wavelengthregion. Experiments suggest that the exist-ence of air-holes reduces the shear acous-tic-velocity with respect to the torsional/radial TR2m-modes.

OThB3 • 9:45 a.m.Extending Transmission Distance inWavelength Reused Fiber-Radio Linkswith FBG Filters, Manik Attygalle, Chris-tina Lim, Masud Bakaul, ThasNirmalathas; Univ. of Melbourne, Austra-lia. We present a simple, passive techniquethat significantly extends the transmissiondistance of wavelength reused fiber-radiolinks. The technique works by optimizingthe modulation depth that allows the useof 95-99% reflective fiber Bragg gratings.

OThC5 • 9:45 a.m.Bit Error Rate Estimation of DPSKModulated Fiber-Optic Systems UsingMulticanonical Monte-Carlo Simula-tions, Yoav Yadin1, Mark Shtaif2, MeirOrenstein1; 1Technion, Israel, 2Tel AvivUniv., Israel. We report the first imple-mentation of the multicanonical Monte-Carlo simulation method to phase modu-lated optical communications systems.The method is used to validate a theoreti-cal approach for estimating bit error ratesin DPSK systems.

Dr. Ming Wu is a Professor of ElectricalEngineering and Computer Sciences at theUniversity of California, Berkeley. Hisresearch interests include optical MEMS,optoelectronics and biophotonics. Hereceived his B.S. degree from NationalTaiwan University, and M.S. and Ph.D.degrees from University of California atBerkeley in 1983, 1985 and 1988 respec-tively, all in Electrical Engineering. Beforejoining UC Berkeley, Dr. Wu was Memberof Technical Staff at AT&T Bell Laborato-ries (Murray Hill) from 1988 to 1992, andProfessor at UCLA from 1993 to 2004. In1997, Dr. Wu co-founded OMM to com-mercialize MEMS optical switches. Dr. Wuhas published over 380 papers, 4 bookchapters, and holds 11 U.S. patents. He is aPackard Fellow, and an IEEE Fellow. Dr.Wu has served in the program committeesof many conferences (OFC, CLEO, LEOS,MEMS, Optical MEMS, MWP, IEDM,DRC, ISSCC) and as guest editors of twospecial issues of IEEE journals on OpticalMEMS.

OThA • Nonlinear Fibers andEffects—Continued

OThB • MicrowavePhotonics—Continued

OThC • SystemMeasurements and Studies—Continued

OThD • MEMS—Continued

OThA7 • 10:00 a.m. Invited

Nanowiring Light, Geoff T. Svacha1, LiminTong2, Eric Mazur1; 1Harvard Univ., USA,2Zhejian Univ., China. Recent advances inthe fabrication and manipulation of sub-wavelength optical fibers provide newmethods for building chemical and bio-logical sensors, generatingsupercontinuum light by nonlinear pulsepropagation, and constructingmicrophotonic components and devices.

OThB4 • 10:00 a.m.Reciprocating Optical Modulator Using aResonant Modulating Electrode for Gen-eration of High-Order Double SidebandComponents, Tetsuya Kawanishi1, SatoshiShinada1, Satoshi Oikawa2, Kiichi Yoshiara3,Takahide Sakamoto1, Masayuki Izutsu1;1Natl. Inst. of Information and Communi-cations Technology, Japan, 2SumitomoOsaka Cement, Japan, 3Mitsubishi Electric,Japan. We propose and demonstrate areciprocating optical modulator having aphaseshifted fiber Bragg grating, a tunablefiber Bragg grating, and a resonant-typeoptical modulator. It enables effectivegeneration of high-order double sidebandcomponents.

OThC6 • 10:00 a.m. Invited

Evaluation of Partially Loaded Systems,Eiichi Shibano, Takanori Inoue, HidenoriTaga, Koji Goto; KDDI-SCS Inc., Japan.Evaluation of partially loaded system isreviewed through experimental verifica-tions. Considering the effects of the newlyadded signals during upgrade, allocationof dummy lights, replacement of dummylights and interaction of inter-channels arediscussed.

10:00 a.m.–4:00 p.m. EXHIBIT HALL OPEN

OFC Te chn i c a l Sess i o n Abs t r a c t s 103

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OThE5 • 9:45 a.m.Detailed Comparison of Cross-PhaseModulation Efficiency in Offset Quan-tum Well and Centered Quantum WellIntermixed Monolithically IntegratedWidely-Tunable MZI-SOA WavelengthConverters, Milan Masanovic, Vikrant Lal,Erik Skogen, Jonathon Barton, JosephSummers, Larry Coldren, DanielBlumenthal; Univ. of California at SantaBarbara, USA. We investigate experimen-tally the cross-phase modulation efficien-cies of monolithic tunable all-opticalwavelength converters in both offset quan-tum-well and centered quantum-wellintermixed InP integration platforms.CQW exhibit 60% higher efficiency withfull 180 degree phase change possible.

OThF6 • 10:00 a.m.Experimental Performance Comparisonfor a Variety of Single Pump, HighlyEfficient, Dispersion CompensatingRaman/EDFA Hybrid Amplifiers, Ju HanLEE1, You Min Chang1, Young-Geun Han1,Haeyang Chung2, Sang Hyuck Kim1, SangBae Lee1; 1Korea Inst. of Science and Tech-nology (KIST), Republic of Korea, 2KyungHee Univ., Republic of Korea. We experi-mentally compare performance of ourproposed single pump, Raman/EDFAhybrid amplifiers recycling residualRaman pump in a cascaded EDF eitherafter or before a DCF with that of aRaman-assisted EDFA in terms of gain,NF, nonlinearity, and BER.

OThG5 • 9:45 a.m.Performance Evaluation of OpticalCDMA Networks with Random MediaAccess Schemes, Fei Xue, Zhi Ding, S. J.Ben Yoo; Univ. of California at Davis, USA.This paper presents a performance analy-sis approach for OCDMA networks, whichtakes into account both the physical layercharacteristics and random media accessschemes. Analysis results demonstrate itseffectiveness in characterizing theOCDMA network dynamics.

OThH6 • 9:45 a.m.Chromatic Dispersion Monitoring UsingTime-Multiplexed In-Band RF Tones,Andrew Liu, G. J. Pendock, Rodney S.Tucker; ARC Special Res. Ctr. for Ultra-Broadband Information Networks, Austra-lia. We demonstrate a simple low-costdispersion monitoring technique usingtwo time-multiplexed in-band RF tones.Compared to conventional monitoringtechniques using a single RF tone, thistechnique improves the monitoring rangeand sensitivity without increasing thesystem complexity.

OThE • All-Optical SignalProcessing II—Continued

OThF • Raman Amplifiers—Continued

OThG • Access Networks—Continued

OThH • PerformanceMonitoring—Continued

OThH7 • 10:00 a.m.Chromatic Dispersion Measurement ofSOA in C + L Band by Self-Tracking Real-Time Interferometry, Kensuke Ogawa, ThiThi Lay; Bussan Nanotech Res. Inst.(XNRI), Japan. Chromatic dispersion inan SOA is characterized by high-accuracybroadband spectral interferometry. Thechromatic dispersion is dominated bygain-induced frequency-dependent refrac-tive index with a dispersion slope of 0.132ps/nm2 at 100-mA injection current.

OThG6 • 10:00 a.m.Terabit LAN with Optical Virtual Con-catenation for Grid Applications withSuper-Computers, Masahito Tomizawa,Jun Yamawaku, Yoshihiro Takigawa,Masafumi Koga, Yutaka Miyamoto, ToshioMorioka, Kazuo Hagimoto; NTT NetworkInnovation Labs, Japan. This paper pro-poses an optical LAN that can transmitTerabit-class bulk-data with low latency ina dynamic manner. Wavelength-group isassigned to bulk-data according to thelatency requirement, and parallel-WDMsignals are transmitted with bit-phasesynchronization, after fast provisioning.

OThE6 • 10:00 a.m.1x4 All-Optical Packet Switch with All-Optical Header Processing, L. F. Lui1,Lixin Xu1,2, L. Y. Chan1, C. C. Lee1, H. Y.Tam1, M. S. Demokan1; 1Hong Kong Poly-technic Univ., China, 2Dept. of Physics,China. We demonstrated a 1x4 all-opticalpacket switch using injection-locking in aFabry-Perot laser diode for all-opticalheader processing and cross gain modula-tion in an SOA for packet switching.

10:00 a.m.–4:00 p.m. EXHIBIT HALL OPEN

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OThB5 • 10:15 a.m.Microwave Frequency Upshifting Tech-nique for Broadband Arbitrary Wave-form Generation, Jose Azana1, Naum K.Berger2, Boris Levit2, VladimirSmulakovsky2, Baruch Fischer2; 1Inst. Natl.de la Recherche Scientifique, Canada,2Technion - Israel Inst. of Technology, Israel.A new microwave frequency upshiftingtechnique based on a general temporalself-imaging effect in fiber is proposed anddemonstrated. Experimental results evi-dence the drastic bandwidth improvementprovided by this technique as comparedwith conventional solutions

OThB • MicrowavePhotonics—Continued

10:30 a.m.–11:00 a.m. BEVERAGE BREAK, EXHIBIT HALL

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OThE7 • 10:15 a.m.Reduction of Nonlinear Patterning Ef-fects in SOA-Based All-Optical SwitchesUsing Optical Filtering, Mads L. Nielsen1,Jesper Moerk1, Jun Skaguchi2, Rei Suzuki2,Yoshiyasu Ueno2; 1Res. Ctr. COM, Den-mark, 2Graduate School of Electronic Engi-neering, Univ. of Electro-Communications,Japan. We explain theoretically, and dem-onstrate and quantify experimentally, howappropriate filtering can reduce the domi-nant nonlinear patterning effect, whichlimits the performance of differential-mode SOA-based switches.

OThF7 • 10:15 a.m.Raman Gain Efficiency Measured on 16Mm of Raman Optimized NZDF Fiber,Bera Palsdottir, C. Christian Larsen; OFSFitel Denmark I/S, Denmark. We presentresults for Raman gain efficiency, CR, of aRaman optimized NZDF, measured on alarge-scale production volume of 16,000km. The average value of CR is 0.60(W.km)-1 with 2.5% standard deviation.

OThG7 • 10:15 a.m.Full-Duplex Wireless-over-Fibre Trans-mission Incorporating a CWDM RingArchitecture with Remote Millimetre-Wave LO Delivery Using a Bi-DirectionalSOA, Tabassam Ismail1, Chin-Pang Liu1,John E. Mitchell1, Alwyn J. Seeds1, XinQian2, Adrian Wonfor2, Richard V. Penty2,Ian H. White2; 1Univ. College London, UK,2Univ. of Cambridge, UK. We demonstratethe first full-duplex wireless-over-fibretransmission between a central station anda CWDM ring architecture with remote40 GHz LO delivery using a bi-directionalsemiconductor optical amplifier.

OThH8 • 10:15 a.m.Low Cost Dispersion Sign Monitor for40Gb/s Systems, Mark Zaacks1, UriMahlab1, Moshe Horowitz2; 1ECI Telecom,Israel, 2Technion, Israel. Precise control oftunable dispersion compensators requiresdispersion sign monitoring. We demon-strate a novel low-cost per-channel disper-sion sign monitor for non-linear andnoise limited networks with bit-rates up to40Gb/s.

OThE • All-Optical SignalProcessing II—Continued

OThF • Raman Amplifiers—Continued

OThG • Access Networks—Continued

OThH • PerformanceMonitoring—Continued

10:30 a.m.–11:00 a.m. BEVERAGE BREAK, EXHIBIT HALL

Market Watch10:30 a.m.–12:30 p.m.Global Market Potential—R&D or Reality?Moderator: Serge Melle, VicePresident, Network Architecture,Infinera Corp., USA

Speakers:

• Myo Ohn, Vice President,Marketing & BusinessDevelopment, OpTun Inc., USA

• David Welch, ChiefDevelopment Officer, InfineraCorp., USA

• Scott Clavenna, Chief Analyst,Heavy Reading, USA

• Glenn Wellbrock, Director ofNetwork TechnologyDevelopment, MCI, USA

(See page 13 for details.)

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11:00 a.m.–12:30 p.m.OThI • Fiber ApplicationsKarl Koch; Corning Inc., USA,Presider

11:00 a.m.–12:15 p.m.OThJ • DispersionEqualizationKim Roberts; Nortel Networks,Canada, Presider

11:00 a.m.–12:30 p.m.OThK • Protection andRestorationPaul Bonenfant; Mahi Networks,USA, Presider

11:00 a.m.–12:30 p.m.OThL • Erbium AmplifiersJeff Livas; Ciena Corp., USA,Presider

OThI1 • 11:00 a.m. Invited

Radiation Hard Optical Fibers, HenningHenschel, Jochen Kuhnhenn, Udo Weinand;Fraunhofer-INT, Germany. Meanwhilethere exist fibers of nearly all types thatshow sufficient radiation hardness inlengths necessary for the respective appli-cation. Hydrogen loading or treatmentand thermal or photo bleaching canharden certain fibers or fiber links.

OThJ1 • 11:00 a.m.Adaptive Opto-Electronic Compensatorfor Excessive Filtering, Chromatic andPolarization Mode Dispersion, Ut-VaKoc, Young-Kai Chen; Bell Labs, LucentTechnologies, USA. We propose an opto-electronic equalizer combining optical andelectronic equalizers optimized jointly bythe novel opto-electronic least meansquares algorithm. Through simulation,we demonstrate that it can efficientlycompensate GVD, PMD and excessiveoptical filtering.

OThK1 • 11:00 a.m. Tutorial

Recovery in Multilayer Optical Networks,Piet Demeester, Mario Pickavet, DidierColle; Univ. of Ghent, Belgium. High avail-ability is a key requirement of moderncomplex multilayer communication net-works. This tutorial will explain the con-cepts of recovery mechanisms used intodays multilayer networks where a.o. IP,MPLS and optical technologies are com-bined.

Piet Demeester and Mario Pickavet areprofessors and Didier Colle is post-doc atthe Ghent University-IBBT where they areinvolved in research on optical communi-cation networks, including WDM, IP,(G-)MPLS, OPS, OBS and multilayernetworks. One of the key problems inves-tigated is the design of resilient (multilayerand multidomain) networks, which is thetopic of this tutorial. They are involved inmany European research projects andpublished over 300 journal or conferencepapers in this field. They have co-authoredor contributored to the recent book “Net-work Recovery: Restoration and Protec-tion of Optical, SONET-SDH, IP andMPLS” by Jean Philippe Vasseur, MarioPickavet and Piet Demeester; MorganKaufmann, Elsevier, 2004.

OThL1 • 11:00 a.m.Effect of Erbium Ion Concentration onGain Spectral Hole Burning in Silica-Based Erbium-Doped Fiber, ShunsukeOno1, Setsuhisa Tanabe1, MasatoNishihara2, Etsuko Ishikawa2; 1GraduateSchool of Human and Environmental Stud-ies, Kyoto Univ., Japan, 2Photonic SystemsLab, Network Systems Labs, Japan. Theerbium concentration dependence of gainspectral hole burning in EDF was investi-gated. We propose the energy transfermechanism between Er ions, which con-tributes to the suppression of the second-hole at 1530 nm.

OThL2 • 11:15 a.m.EDFAs with Improved Gain-FlatnessOwing to a New Pump Design, PhilippeBousselet1, Christian Simonneau1, Domin-ique Bayart1, Paul Salet2, Gaelle Lucas-Leclin2, Gérard Roger2, Patrick Georges2,Sophie-Charlotte Auzanneau3, NicolasMichel3, Michel Calligaro3, OlivierParillaud3, Michel Lecomte3, MichelKrakowski3; 1Alcatel R&I, France, 2IOTA,CNRS/Univ. Paris-Sud, France, 3Thalès Res.and Technology, France. A new pumpsource based on a semiconductor arraycoupled with an external cavity laser isshown. Its broad output spectrum allowsto improve the EDFA gain flatness whilereducing manufacturing cost.

OThJ2 • 11:15 a.m.Electronic Dispersion Compensation bySignal Predistortion Using a Dual-DriveMach-Zehnder Modulator, Robert I.Killey1, Phillip M. Watts1, Vitaly Mikhailov1,Madeleine Glick2, Polina Bayvel1; 1Univ.College London, UK, 2Intel Res., UK. Wepropose the technique of signalpredistortion using a dual-drive Mach-Zehnder modulator and nonlinear digitalfilters, and demonstrate compensation of13600ps/nm, equivalent to 800 km ofstandard single mode fibre, at 10Gb/s.

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11:00 a.m.–12:30 p.m.OThM • VCSELSYasaka Hiroshi; NTT PhotonicsLabs, Japan, Presider

11:00 a.m.–12:30 p.m.OThN • Optical SubsystemsReinhold Ludwig; Heinrich-Hertz-Institut, Germany, Presider

11:00 a.m.–12:30 p.m.OThO • PSK SystemsRene-Jean Essiambre; LucentTechnologies, USA, Presider

11:00 a.m.–12:30 p.m.OThP • Control Plane and IP/Optical IntegrationOlga Aparicio; Mitretek Systems,USA, Presider

OThM1 • 11:00 a.m. Invited

Long Wavelength VCSELs, Markus C.Amann; Technical Univ. of Munich, Ger-many. Single-mode AlGaInAs/InP VCSELsfor the 1.4-2µm wavelength range withsub-mA threshold currents, <1V thresh-old voltage, >100°C cw operation, single-mode operation with SMSR of 50 dB andmodulation bandwidth up to 10Gbit/s arepresented.

OThN1 • 11:00 a.m.Novel Time Domain Add/Drop Multi-plexer Based on Double-Pumped Four-Wave-Mixing and Cross-Phase-Modula-tion Induced Spectral Shift in a Semicon-ductor Optical Amplifier, Claudio Porzi1,Luca Potì2, Antonella Bogoni2; 1ScuolaSuperiore Sant’Anna, Italy, 2CNIT, Italy.Channel extraction and clearing for all-optical Add/Drop is demonstrated in anovel configuration exploiting both Four-Wave-Mixing and Cross-Phase-Modula-tion in a single Semiconductor OpticalAmplifier. The scheme is insensitive tosignal input polarization and wavelength.

OThO1 • 11:00 a.m.Experimental Comparison of the RZ-DPSK and NRZ-DPSK Modulation For-mats, Jin-Xing Cai, Carl R. Davidson,Dmitri G. Foursa, Li Liu, Yi Cai, BamdadBakhshi, Georg Mohs, Will W. Patterson,Pat C. Corbett, Alan J. Lucero, Bill Ander-son, Haifeng Li, Morten Nissov, Alexei N.Pilipetskii, Neal S. Bergano; Tyco Telecom-munications, USA. The RZ-DPSK andNRZ-DPSK modulation formats wereexperimentally compared using installedundersea fiber links. Our results show a 1-1.5 dB RZ benefit with optimized RZmodulation depth for both 25-GHz and33-GHz spaced channels.

OThP1 • 11:00 a.m. Invited

Progress in Distributed Control PlaneInternetworking: An Update from theOIF, Amy Wang; Avici, USA. From today’snetwork model to next generation IPoptical network, this talk provides anindustry update on the control planetechnology, market adoption by vendorand carrier community, and the drivingforce for successful deployment and ser-vices.

OThO2 • 11:15 a.m.Experimental Comparisons of DPSK andOOK in Long Haul Transmission with10Gbit/s Signals, DMF Span and RamanAssisted EDFA, Takanori Inoue1, KazuyukiIshida2, Eiichi Shibano1, Hidenori Taga1,Katsuhiro Shimizu2, Koji Goto1, KuniakiMotoshima2; 1KDDI-SCS, Japan,2Mitsubishi Electric Corp., Japan. We com-pare tolerance to SPM and XPM of CS-RZDPSK signal and CS-RZ OOK signal ex-perimentally. The advantage of DPSKcould be maintained after 7,200km trans-mission using DMF spans of 150km andRaman assisted EDFAs.

OThN2 • 11:15 a.m.Time Division Add-Drop Multiplexingup to 320 Gbit/s, Colja Schubert1, CarstenSchmidt-Langhorst1, Karsten Schulze2,Vincent Marembert1, Hans-Georg Weber1;1Heinrich-Hertz-Inst. HHI-FhG, Germany,2Nanophotonics Technology Ctr., Univ.Politecnica, Spain. We report an all-opticaladd-drop multiplexer based on a Kerr-gatecomprising highly nonlinear fiber. Error-free operation is obtained for all channelsat 160Gbit/s. The device can operate up to320Gbit/s, which is demonstrated by eyediagram measurements.

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OThI • Fiber Applications—Continued

OThJ • DispersionEqualization—Continued

OThK • Protection andRestoration—Continued

OThL • Erbium Amplifiers—Continued

OThI2 • 11:30 a.m. Tutorial

Optical Coherence Tomography,Zhongping Chen; Univ. of California atIrvine, USA. Optical coherence tomogra-phy (OCT) is an emerging imaging tech-nology that has found many clinical appli-cations. Several key improvements in OCTtechnology resulted directly from ad-vances in telecommunication field. Thistutorial will review the principles of OCTand highlight recent advances.

Dr. Zhongping Chen is an Associate Pro-fessor of Biomedical Engineering andDirector of OCT Laboratory at the Uni-versity of California at Irvine. He receivedhis B.S. in Applied Physics from ShanghaiJiaotong University in 1982, and a Ph.D.degree in Applied Physics from CornellUniversity in 1992.

Dr. Chen has made significant contribu-tions to the fields of biomedical opticalimaging. His group has pioneered thedevelopment of phase resolved functionaloptical coherence tomography, whichsimultaneously provides high resolutioncross-sectional images of tissue structure,blood flow, and birefringence. Dr. Chen isalso one of the leading researchers in theintegration of micro-fabrication technol-ogy, optical technology, and biotechnologyto develop diagnostic and therapeuticdevices and instruments. He has publishedover 60 peer-reviewed papers and reviewarticles and holds numerous patents in thefields of biomaterials, biosensors, andbiomedical imaging.

OThJ3 • 11:30 a.m. Invited

Electronic Domain Compensation ofOptical Dispersion, John McNicol, M.O’Sullivan, K. Roberts, A. Comeau, D.McGhan, L. Strawczynski; Nortel Networks,Canada. Recent advances in the electricalequalization of optical systems are pre-sented in the context of standard methods.We report 10 Gb/s transmission over60,000 ps/nm of optical dispersion from3840 km of NDSF.

OThK2 • 12:00 p.m.Exploiting Connection-Holding Time toImprove Resource Efficiency for Dy-namic Provisioning in Shared-Path Pro-tection, Massimo Tornatore1, Canhui(Sam) Ou2, Achille Pattavina1, BiswanathMukherjee3; 1Politecnico di Milano, Italy,2SBC Services Inc., USA, 3Univ. of Califor-nia at Davis, USA. For dynamic provision-ing of shared-path-protected connectionsin an optical mesh network, we investigatea new algorithm which exploits the hold-ing time of connections to achieve signifi-cant reduction in resource overbuild.

OThL3 • 11:30 a.m.Gain-Flatness Improvement over C-BandEmploying Silica-Based Borate/Alumina-Codoped EDF, Tetsuya Haruna1, MotokiKakui1, Shinji Ishikawa1, Tetsuya Mouri2,Masato Ueno2, Takahiro Murata2, KenjiMorinaga2; 1Sumitomo Electric Industries,Ltd., Japan, 2Kyushu Univ., Japan. Employ-ing borate/alumina-codoped EDF, therelative gain ripple over the C-band hasbeen reduced to less than 10%, which is toour knowledge the record for the gainflatness of C-band silica-based EDFAs.

OThL4 • 11:45 a.m.DGE-Based Variable Gain EDFA Im-proves Both Gain Flatness and NoiseFigure for a 70°C Temperature OperatingRange, Laurence Lolivier, Augustin Grillet,Fabien Roy, Dominique Hamoir; Multitelasbl, Belgium. We designed a +17.5dBmvariable-gain EDFA (20 to 28dB) incorpo-rating a dynamic gain equalizer (DGE). Itsnoise figure is maintained below 5.2dBand its gain flatness better than 1dB whenoperating from -5 to +65°C.

OThL5 • 12:00 p.m.Dynamic Gain-Fluctuations in Gain-Clamped EDFA in Packet Switched Opti-cal Transmissions, Djeisson H. Thomas,Jean Pierre Von der Weid; Pontifical Catho-lic Univ. of Rio de Janeiro, Brazil. A ringlaser gain-clamped erbium-doped fiberamplifier (EDFA) was used to study dy-namic gain fluctuations induced by laserrelaxation oscillations during opticalpacket collisions in an emulated packetswitched WDM network.

OThJ4 • 12:00 p.m.Measurement of the Dispersion Toler-ance of Optical Duobinary with anMLSE-Receiver at 10.7 Gb/s, Joerg-PeterElbers1, Horst Wernz1, Helmut Griesser1,Christoph Glingener1, Andreas Faerbert2,Stefan Langenbach2, Nebojsa Stojanovic2,Claus Dorschky2, Theo Kupfer2, ChristophSchulien2; 1Marconi Communications,Germany, 2CoreOptics, Germany. We ex-perimentally demonstrate a significantimprovement in the dispersion toleranceof optical duobinary modulation whenemploying an MLSE instead of a standardreceiver. We show that the improvementcritically depends on the MLSE design.

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OThM • VCSELS—Continued OThN • OpticalSubsystems—Continued

OThO • PSK Systems—Continued

OThP • Control Plane and IP/Optical Integration—Continued

OThM2 • 11:30 a.m.50 GHz Directly-Modulated Injection-Locked 1.55 µm VCSELs, LukasChrostowski1, Xiaoxue Zhao1, ConnieChang-hasnain1, Robert Shau2, MarkusOrtsiefer2, Markus-Christian Amann2;1Univ. of California at Berkeley, USA,2VERTILAS GmbH, Germany. The reso-nance frequency of several 1.55 µmVCSELs is enhanced from 7 GHz up to~50 GHz with the optical injection lock-ing technique. This is the highest valuereported for directly modulated lasers.

OThN3 • 11:30 a.m.All-Optical Analog-to-Digital Conver-sion by Slicing Supercontinuum Spec-trum and Switching with NonlinearOptical Loop Mirror, Sho-ichiro Oda,Akihiro Maruta; Graduate School of Engi-neering, Osaka Univ., Japan. We propose anovel all-optical analog-to-digital conver-sion scheme consisting of the quantizationby slicing supercontinuum spectrum andthe coding by switching pulses with anonlinear optical loop mirror. The pro-posed scheme is experimentally demon-strated.

OThO3 • 11:30 a.m. Invited

Nonlinear Phase Noise in Phase-CodedTransmission, Hoon Kim1, Peter J.Winzer2; 1Samsung Electronics, Republic ofKorea, 2Bell Labs, Lucent Technologies,USA. We review nonlinear phase noise inphase-coded transmission systems, em-phasizing experimental results. We de-scribe measurements of nonlinear phasenoise as well as its impact on 10-Gbps and40-Gbps transmission systems.

OThP2 • 11:30 a.m.Peer/Overlay Hybrid Optical NetworkUsing Protocol Gateways of GMPLS andOIF-UNI/NNI, Michiaki Hayashi1, KenichiOgaki1, Tomohiro Otani1, Hideaki Tanaka1,Tomoshige Funasaki2, Hiroyuki Tanuma2;1KDDI R&D Labs Inc., Japan, 2NEC Corp.,Japan. Peer/overlay hybrid optical net-works with protocol gateways of GMPLSand OIF-UNI/NNI were demonstrated forthe first time. UNI connections were suc-cessfully established over a single TDM/photonic GMPLS domain as well as OIFE-NNI-based multiple domains.

OThM3 • 11:45 a.m.All-Monolithic InAlGaAs/InP VCSELsfor 1.3 ~ 1.5 um Wavelength Ranges, Mi-Ran Park1, O-Kyun Kwon1, Won-Seok Han1,Jong-Hee Kim1, Sang-Hee Ko Park1, Ki-Hwang Lee2, Seong-Joo Park2, Byueng-SuYoo2, Hyun-Woo Song1; 1Basic Res. Lab,ETRI, Republic of Korea, 2RayCan Co., Ltd.,Republic of Korea. All-monolithicInAlGaAs/InP VCSELs over 1.3~1.5 µmwavebands were successfully demon-strated. Single mode power of ~ 1 mWand modulation bandwidth exceeding 2.5Gbps at room temperature and CW op-eration over 80°C were obtained in both1.3 and 1.5 µm.

OThN4 • 11:45 a.m.Frequency Multiplexing Technique forRelative-Intensity-Noise Reduction,Noritaka Taguchi1, Shingto Tanaka1,Tsuneto Kimura2, Yasunori Atsumi1;1Optowave Lab Inc., Japan, 2Yazaki Corp.,Japan. A 10dB relative-intensity-noisereduction is achieved by a novel schemethat multiplexes local-oscillation fre-quency and intermediate frequencies.Simulations conducted to evaluate rela-tive-intensity-noise levels well match theexperimentally obtained data.

OThP3 • 11:45 a.m.Field Trial of 40-Gbit/s Wavelength PathQuality Assurance Using GMPLS-Con-trolled All-Optical 2R Regenerator, MikioYagi1, Shinya Tanaka1, Shuichi Satomi1,Shiro Ryu1, Koji Okamura2, MutsumiAoyagi2, Shoichiro Asano3; 1Japan TelecomCo., Ltd., Japan, 2Kyushu Univ., Japan,3Natl. Inst. of Informatics, Japan. We havesuccessfully demonstrated a field trial of40-Gbit/s wavelength path quality assur-ance by applying a GMPLS-controlled all-optical 2R regenerator that is incorporatedin multilayer integration system amongGMPLS control, measurement, and dataplanes.

OThP4 • 12:00 p.m. Invited

IP/Optical Integration, Rajiv Papneja;Isocore, USA. Abstract not available.

OThO4 • 12:00 p.m.Impact of RZ Pulse Carver Phase Errorson Optical DQPSK, Yan Han, Guifang Li;Univ. of Central Florida, USA. The impactof phase errors caused by imperfect re-turn-to-zero (RZ) pulse carving on opticaldifferential quadrature phase-shift keying(DQPSK) is analyzed. The two-symbol-delayed interferometric demodulation isproposed as an effective means to mitigatethis degradation.

OThN5 • 12:00 p.m. Invited

Advances in Planar Lightwave Circuits,David Dougherty; JDS Uniphase, USA.Advances in silica-on-silicon PlanarLightwave Circuit (PLC) technology areenabling a higher level of integration forReconfigurable Add/Drop Multiplexers.Newer integrated optics materials systemsoffer important advantages in cost andperformance.

OThM4 • 12:00 p.m.1325 nm VCSELs Emitting 1.2 mW SingleMode Output in the 20-80° C Tempera-ture Range, Alexei Sirbu1, AlexandruMereuta1, Andrei Caliman1, VladimirIakovlev1, Claude-Albert Berseth1, GrigoreSuruceanu1, Eli Kapon1,2, Alok Rudra2;1BeamExpress S.A., Switzerland, 2Swiss Fed.Inst. of Technology, EPFL, Switzerland.Wafer-fused InGaAlAs/AlGaAs VCSELsemitting in the vicinity of 1325 nm withInAlGaAs-based tunnel junction injectionshow record high 1.2 mW single modeoutput and 40 dB side-mode suppressionratio in the 20-80° C temperature rangeand good on-wafer device parametersuniformity.

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OThK3 • 12:15 p.m.A Different Time Delay Technique forSupervising Switch Fabric in OXC,Chien-Chung Lee1, Ta-Chun Kao1, Hung-Chang Chien1, Kai-Ming Feng2, Sien Chi3;1Natl. Chiao-Tung Univ., Taiwan Republicof China, 2Natl. Tsing-Hua Univ., TaiwanRepublic of China, 3Yuan Ze Univ., TaiwanRepublic of China. A novel supervisingtechnique, based on different time-delayrecognition scheme, to monitor the switchfabric of optical cross-connect (OXC) isproposed. This method features fast detec-tion, high reliability, and switch faultlocation.

OThL6 • 12:15 p.m.Erbium Doped Waveguide Amplifiers(EDWAs) Fabricated in Novel BulkGlasses Using Femtosecond Pulses, Rob-ert R. Thomson1, Henry T. Bookey1, StuartCampbell1, Derryck T. Reid1, Ajoy K. Kar1,Shaoxiong X. Shen2, Animesh Jha2; 1HeriotWatt Univ., UK, 2Inst. for Materials Res.,Univ. of Leeds, UK. We present the resultsof optical characterisation experimentsconducted on Erbium Doped WaveguideAmplifiers (EDWAs) fabricated in novelerbium doped bulk glasses usingfemtosecond pulses to modify the refrac-tive index of the glass.

OThK • Protection andRestoration—Continued

OThL • Erbium Amplifiers—Continued

12:30 p.m.–1:30 p.m. LUNCH BREAK (On Your Own)

1:30 p.m.–3:30 p.m.OThQ • Grating Devices andPolingRaman Kashyap; EcolePolytechnique de Montreal,Canada, Presider

1:30 p.m.–3:30 p.m.OThR • Optical TransmissionSystemsRongqing Hui; Univ. of Kansas,USA, Presider

1:30 p.m.–3:30 p.m.OThS • Network Design IIOri A. Gerstel; NetworkArchitecture Consultant, USA,Presider

1:30 p.m.–3:30 p.m.OThT • PMD: Modeling andMonitoringMisha Boroditsky; AT&T Labs,USA, Presider

OThT1 • 1:30 p.m.Novel First and Second Order Polariza-tion Mode Dispersion Emulator, YannickKeith Lizé1, Leigh Palmer2, Pierre Jr Lavoie1,Nicolas Godbout1, Suzanne Lacroix1,Raman Kashyap1; 1École Polytechnique deMontréal, Canada, 2Univ. of Melbourne,Australia. A novel, simple and low-costPMD emulator design is demonstrated inwhich the multiple polarization scram-bling stages are replaced by a single, cus-tomized polarization controller. Simula-tion and experiment confirm that first andsecond order statistics are accurately emu-lated.

OThS1 • 1:30 p.m. InvitedPast, Present and Future of Customer-Owned Optical Networks, Bill St. Arnaud;Canarie Inc., Canada. A technical andbusiness case overview of customer ownedfiber and wavelength networks is providedalong with a perspective of new hardwareand network management systems thatwill further enable lower cost deploymentof such systems in the future.

OThR1 • 1:30 p.m.Optical Pulse Generator Using PhaseModulator and Chirped Bragg Grating,Tetsuro Komukai, Takashi Yamamoto,Satoki Kawanishi; NTT Corp., Japan. Wedemonstrate an optical pulse generator, inwhich CW light is modulated by a phasemodulator and compressed into pulses bylinearly chirped fiber Bragg gratings. Twotypes of pulse are generated by changingthe conditions.

OThQ1 • 1:30 p.m. InvitedProgress on Fibre Poling and Devices,Walter Margulis, Niklas Myrén; ACREO,Sweden. One can induce second-ordernonlinearity in fibers through poling.Electrooptical modulation, switching andwavelength conversion can thus beachieved. We describe accomplishments ofthe EU project GLAMOROUS in creatinglow-cost high performance electroopticfiber components.

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OThM5 • 12:15 p.m.Impedance-Detuned High-ContrastVertical Cavity Semiconductor Switch,Claudio Porzi1,2, Antti Isomaki1, MirceaGuina1, Oleg G. Okhotnikov1; 1TampereUniv. of Technology, Finland, 2ScuolaSuperiore Sant’Anna, Italy. We report anall-optical semiconductor gate optimizedfor high-contrast switching. Using a pumpsignal with an intensity of less than ~25KW/cm2, we demonstrate a 30-dB con-trast ratio for 10-GHz pulses with energyof 0.05 pJ.

OThO5 • 12:15 p.m.Reduction of Nonlinear Phase Noise byMid-Link Spectral Inversion in a DPSKBased Transmission System, Sander L.Jansen1, Dirk van den Borne1, Giok-DjanKhoe1, Huug de Waardt1, Carlos ClimentMonsalve2, Stefan Spälter3, Peter M.Krummrich3; 1COBRA Inst., EindhovenUniv. of Technology, Netherlands, 2Polytech-nic Univ. of Madrid, Spain, 3Siemens AG,ICN Carrier Products, Netherlands. Weshow in an 800km SSMF transmissionexperiment, that mid-link spectral inver-sion can be employed to reduce the effectof nonlinear phase noise (Gordon-Mollenauer noise) on DPSK by over twodecades in BER.

OThM • VCSELS—Continued OThO • PSK Systems—Continued

12:30 p.m.–1:30 p.m. LUNCH BREAK (On Your Own)Market Watch1:30 p.m.–3:30 p.m.Ethernet Services—Catchingon like Wild Fire?Moderator: Gary Southwell, VicePresident Product Marketing,Ciena Corp., USA

Speakers:

• Brian Van Steen, SeniorAnalyst, RHK, USA

• John Hawkins, SeniorMarketing Manager,Nortel Networks, USA

• Sunil Khandekar, Director ofProject Management, Alcatel,USA

• Gary Southwell, Vice PresidentProduct Marketing, CienaCorp., USA

(See page 14 for details.)

1:30 p.m.–3:30 p.m.OThU • Low Cost Lasers andPackagingKirk S. Giboney; AgilentTechnologies Inc., USA, Presider

1:30 p.m.–3:30 p.m.OThV • Planar LightwaveCircuitsHaifeng Li; TycoTelecommunications, USA,Presider

1:30 p.m.–3:15 p.m.OThW • FEC and Line CodingTakashi Mizuochi; MitsubishiElectric Corp., Japan, Presider

1:30 p.m.–3:30 p.m.OThX • Measurements andPerformance MonitoringMartin Birk; AT&T, USA,Presider

OThX1 • 1:30 p.m. Tutorial

Network Cost Impact of Solutions forMitigating Optical Impairments: Com-parison of Methods Techniques, andPractical Deployment Constraints,Michel Belanger; Nortel, Canada. Thenetwork costs of dispersion compensationstrategies are reviewed. Practical fieldissues such as PMD, non-uniform spanloss distributions and OADM placementare considered. The performance and costimpact of electrical and optical methodsare compared.

Michel P. Belanger obtained his Ph.D. inElectrical Engineering (guided wave op-tics) from McGill University in Montrealin 1987. He held R&D positions at EcolePolytechnique in Montreal and at Cana-dian Marconi. With the National OpticsInstitute of Canada, he conducted research

OThW1 • 1:30 p.m.Channel Capacity of Fiberoptic Commu-nication Systems with Amplified Sponta-neous Emission Noise, Yi Cai, Alexei N.Pilipetskii; Tyco Telecommunications, USA.We evaluate the capacity of fiberopticchannels dominated by linear amplifiedspontaneous emission noise for differentmodulation formats. Based on the channelcapacities we discuss possible gains fromdifferent modulation and coding tech-niques.

OThV1 • 1:30 p.m.Three-Dimensional Waveguide Intercon-nection Formed with Femtosecond Laserin Planar Lightwave Circuits, YusukeNasu, Masaki Kohtoku, Yoshinori Hibino,Yasuyuki Inoue; NTT Corp., Japan. The3-D interconnection of waveguides in theplanar lightwave circuits (PLCs) is dem-onstrated for the first time. By writing 3-Dwaveguides that cross other waveguides,the femtosecond laser successfully inter-connects PLC waveguides with low loss.

OThU1 • 1:30 p.m.Highly Reliable AlGaInAs BuriedHeterostructure Lasers for Uncooled10Gb/s Direct Modulation, NobuyukiIkoma, Takahiko Kawahara, Noriaki Kaida,Michio Murata, Akihiro Moto, TakashiNakabayashi; Sumitomo Electric Industries,Ltd., Japan. High reliability (estimatedmedian lifetime of 240,000hours) of1.3µm AlGaInAs buried heterostructurelasers has been demonstrated by morethan 10,000 hours accelerated aging tests.Distributed-feedback lasers have success-fully operated at 10Gb/s at 95° C.

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OThQ • Grating Devices andPoling—Continued

OThR • Optical TransmissionSystems—Continued

OThS • Network Design II—Continued

OThT • PMD: Modeling andMonitoring—Continued

OThQ2 • 2:00 p.m.Tuneable Second Harmonic Generationin Periodically Poled Optical Fibres,Albert Canagasabey, Costantino Corbari,Mohd R. Mokhtar, Peter G. Kazansky,Morten Ibsen; Univ. of Southampton, UK.A widely tuneable second harmonic gen-erator in a periodically poledgermanosilicate optical fibre is demon-strated for the first time. Broadband wave-length tuning of 27.8nm is achieved usinga highly efficient compression tuneablepackage demonstrated with fibre Bragggratings.

OThR2 • 1:45 p.m.Photodetector Linearization UsingAdaptive Electronic Postdistortion,Juthika Basak, Bahram Jalali; Univ. ofCalifornia at Los Angeles, USA. Photode-tector linearization using a monolithicCMOS polynomial generator is demon-strated. Improvements of 32.5 dB and 7.2dB are demonstrated for the 2nd orderand the 3rd order Input Intercept Point,respectively.

OThS2 • 2:00 p.m.Delay Distributed VCAT for EfficientData-Optical Transport, MansoorAlicherry, Chitra Phadke, Vishy Poosala;Lucent Technologies, USA. We introduce anovel scheme that flexibly distributes thedifferential delays in virtual concatenation(VCAT) paths in SONET/SDH networks.We show that this increases the utilizationof the network in carrying dynamic trafficand reduces the total buffer requirements.

OThT2 • 1:45 p.m.Maximum Second Order PMD in Emula-tors—A Geometric Approach, MagnusKarlsson; Chalmers Univ. of Technology,Sweden. A new geometric interpretation ofsecond order PMD (SOPMD) is used tosolve the problem of how the birefringentelements in an emulator should be ori-ented to maximize the SOPMD. Bothdepolarization and polarization-depen-dent chromatic dispersion will be consid-ered.

OThR3 • 2:00 p.m. InvitedEnabling 160Gbit/s Transmitter andReceiver Designs, Lothar Moeller, Sr.1,Yikai Su2, Chongjin Xie1, Roland Ryf1,Xiang Liu1, Xing Wei1, Christopher R.Doerr1; 1Bell Labs, Lucent Technologies,USA, 2Shanghai Jiao Tong Univ., China.The field of ultra high-speed (≥ 160Gb/s)transmission has developed rapidly overthe past years from proof-of-principledemonstrations towards advanced fieldtrial applications. We review recent trendsin 160Gb/s signal generation and detec-tion techniques.

OThT3 • 2:00 p.m.Design and Optimization of PolarizationMode Dispersion Emulators for LowBackground Autocorrelation, LeighPalmer, Sarah D. Dods, Peter M. Farrell;Univ. of Melbourne, Australia. We showthat the frequency correlation of multi-section PMD emulators can be minimizedfor any given set of birefringent elements.We present a model describing the under-lying cause of the correlation, which isverified using simulations.

OThT4 • 2:15 p.m.Fiber Transmission System Applicationand Limitation of Multicanonical Sam-pling in PMD Emulation, Lianshan Yan1,Tao Lu2, Bo Zhang1, Changyuan Yu1, DavidYevick2, Alan Willner1; 1Univ. of SouthernCalifornia, USA, 2Univ. of Waterloo,Canada. We apply multicanonical sam-pling to a 10-Gb/s fiber transmissionsystem using a recirculating loop as aPMD emulator. With 22-ps average PMD,the probability density at 10-5 BER in-creases from 5x10-4 (Monte-Carlo) to 0.01(multicanonical).

OThS3 • 2:15 p.m.Capacity Planning of Survivable Wave-length-Routed Networks for Increase ofTraffic Loads, Jintae Yu1, Ikuo Yamashita2,Shigeyuki Seikai2, Ken-ichi Kitayama1;1Dept. of Electronics and Information Sys-tems, Osaka Univ., Japan, 2The KansaiElectric Power Co. Inc., Japan. We proposea cost-effective capacity planning of sur-vivable wavelength-routed networks opti-mized for initial traffic loads to study theeffect of additional network costs corre-sponding to the increase in traffic de-mands with shared-path protection.

OThQ3 • 2:15 p.m.Alkali Impurities and the Long-Wave-length Hydrogen-Induced Aging Loss inGe-Doped Silica Fibers, Kai H. Chang;OFS, USA. Significant hydrogen aging lossin the long-wavelengths (>1360 nm)caused by alkali impurities (Na, Li and K)at ppma levels in Ge-doped silica fibersand its relevance to long-term reliabilityare discussed.

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OThU • Low Cost Lasers andPackaging—Continued

OThV • Planar LightwaveCircuits—Continued

OThW • FEC and LineCoding—Continued

OThX • Measurements andPerformance Monitoring—Continued

OThU2 • 1:45 p.m.Wide Temperature (-40°C~95°C) Opera-tion of Uncooled 1610 nm DFB Laser forCWDM Application, Atsushi Matsumura,Takeshi Kishi, Michio Murata, TakashiKato; Sumitomo Electric Industries, Ltd.,Japan. We demonstrated a wide tempera-ture operation from -40° C to 95° C of anL-band DFB laser for the first time. TheBER at 2.5 Gb/s was maintained withouterror floor over 120 km up to 95° C.

OThV2 • 1:45 p.m.Fabrication of Wavelength Splitter De-signed by Wavefront Matching Method,Takashi Saida, Toshikazu Hashimoto, IkuoOgawa, Masaki Kohtoku, TomohiroShibata, Hiroshi Takahashi, Senichi Suzuki;NTT Corp., Japan. We report the firstfabrication of a waveguide device designedusing our recently proposed wavefrontmatching method. We fabricated a verycompact wavelength splitter having mo-saic-like patterns, and confirmed its op-eration in experiments.

OThW2 • 1:45 p.m.A Ternary Modulation Code for Suppres-sion of Intrachannel Nonlinear Effects inHigh-Speed Optical Transmission, IvanB. Djordjevic, Bane Vasic; Univ. of Arizona,USA. In this paper, a novel approach insuppressing the intrachannel nonlineareffects based on ternary modulation codesis proposed. Significant Q-factor improve-ment, ranging from 4.5 to 7 dB (depend-ing on number of spans) is obtained.

into the fabrication and application ofguided wave optical components for sen-sors and communication. After a stintwith Teleglobe, in 1995 he joined NortelNetworks as product manager for DWDMsystems. Later, he moved to the opticaldevelopment group as a member of scien-tific staff. His current activity is the devel-opment of electro-optic engines for opti-cal transmission systems.

OThU3 • 2:00 p.m.Isolator-Free Directly Modulated Com-plex-Coupled DFB Lasers for Low CostApplications, Jochen Kreissl, WalterBrinker, Erika Lenz, Tom Gaertner,Wolfgang Rehbein, Stefan Bauer, BerndSartorius; Fraunhofer Inst., Germany.Complex-coupled and index-coupled DFBlasers are fabricated and characterizedregarding their feedback sensitivity. Thefeedback stability is improved by 15 dBusing the complex coupling. BER mea-surements demonstrate the potential forisolator-free transmitter application

OThV3 • 2:00 p.m. InvitedDesign of Waveguide Grating Routers forSimultaneous Multiple Optical CodeGeneration in Photonic MPLS Networks,Gabriella Cincotti1, Naoya Wada2, Ken-ichiKitayama3; 1Univ. of Roma TRE, Italy,2Natl. Inst. of Information and Communi-cation Technology of Japan, Japan, 3OsakaUniv., Japan. We review novel methods togenerate optical codes for use in MPLS orCDM transmission. A standard WGR canbe designed to generate simultaneously alarge number of highly orthogonal codesas a result of a single input pulse.

OThW3 • 2:00 p.m.Net Coding Gain of 10.2 dB Using anIrregular LDPC Code with a Three-Di-mensional Analyser, Stefan Schoellmann,Oren Jean, Werner Rosenkranz; Univ. ofKiel, Germany. We present a three-dimen-sional decoding scheme for an irregularLow Densitiy Parity Check Code (LDPC).With this setup, we achieved a Net CodingGain of 10.2dB and a significant improve-ment in the iterating decoding process.

OThW4 • 2:15 p.m.Improvement of DPSK Transmission byUsing Convolutional Error CorrectionCoding, Torsten Wuth, Erik Agrell, MagnusKarlsson; Chalmers Univ. of Technology,Sweden. In this paper we quantify theimprovement in the transmission qualityfor DPSK transmission by using convolu-tional error correction coding. To avoidbandwidth-limitation problems from e.g.chromatic dispersion the convolutionalcoding is combined with bandwidth effi-cient modulation.

OThU4 • 2:15 p.m.1V Operation Laser Diode for FTTH byUsing Active Multi-Mode-Interferometer(MMI), Kiichi Hamamoto1, Masaki Ohya1,Koichi Naniwae1, Shinya Sudo1, TatsuyaSasaki1, Syougo Shimizu2, Mohd DannialBin Razali2, Kenichi Kasahara2; 1SystemDevices Res. Labs, NEC Corp., Japan,2Ritsumeikan Univ., Japan. Active multi-mode-interferometer (MMI) laser diodes(LDs) achieved low operation voltage ofonly 1V at 10mW light output(Wavelength=1.5um), due to the signifi-cant resistance reduction of 60% com-pared to that of regular LDs, and 1Gbpsoperation.

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OThQ4 • 2:30 p.m.Enhanced Supercontinuum GenerationNear Fiber Bragg Resonances, P. S.Westbrook1, J. W. Nicholson1, K. S. Feder1, Y.Li2, T. G. Brown2; 1OFS Labs, USA, 2Univ. ofRochester, USA. We show thatsupercontinuum generation in a nonlinearfiber containing a Bragg grating is greatlymodified near the Bragg resonance. Wedemonstrate enhancement of more than10x in fibers with single and multiplegrating resonances.

OThR4 • 2:30 p.m.Achievement of 1 bit/s/Hz InformationSpectral Density Using Coherent WDM,Andrew D. Ellis, Fatima C. Garcia Gun-ning; Univ. College Cork, Ireland. CoherentWDM—a new technique for high-spectraldensity—is proposed and demonstrated.Transmission of 42.66Gbit/s NRZ binarydata channels at 1bit/s/Hz is achieved in asingle polarisation using a WDM combsource with phase control.

OThS4 • 2:30 p.m.Investigation of the Tolerance of Wave-length-Routed Optical Networks to Inac-curacy in Traffic Load Forecasts, Roger N.Lao1, Robert Friskney2, Robert Killey1;1Univ. College London, UK, 2Nortel Net-works, Harlow Labs, UK. We carried outextensive computer simulations of wave-length-routed optical networks, identify-ing features of network topology thatallow high tolerance to traffic forecastinaccuracy. The findings can be used tosimplify the network design process.

OThT5 • 2:30 p.m. InvitedCharacterization and Measurement ofthe Polarization Properties of OpticalSystems in the Presence of PMD andPDL, Avishay Eyal, Moshe Tur; Tel AvivUniv., Israel. Techniques for measuringand characterizing the polarization prop-erties of optical systems in the presence ofPMD and PDL are described, as well asmethods for extraction of various physicalparameters from the experimental data.

OThQ • Grating Devices andPoling—Continued

OThR • Optical TransmissionSystems—Continued

OThS • Network Design II—Continued

OThT • PMD: Modeling andMonitoring—Continued

OThQ5 • 2:45 p.m.Refractive Index Modulation in PhotonicCrystal Fibers Induced by MechanicalStress Relaxation Based on CO2 LaserIrradiation, Yinian Zhu, Ping Shum, Hui-Wen Bay, Min Yan, Xia Yu, Chao Lu; Net-work Technology Res. Ctr., Nanyang Tech-nological Univ., Singapore. Refractive indexmodulation in endlessly-single-modephotonic crystal fiber by CO2 laser irradia-tion without surface-deformation is ex-perimentally confirmed with a value of1.68x10-3 for the first time, which is con-tributed by mechanical stress relaxation infiber.

OThR5 • 2:45 p.m.160-GHz Pulse Generator Using a 40-GHz Phase Modulator and PM Fiber,Changyuan Yu, Z. Pan, T. Luo, S. Kumar, L.S. Yan, B. Zhang, L. Zhang, Y. Wang, M.Adler, A. E. Willner; Univ. of SouthernCalifornia, USA. We demonstrate chirp-free CS-RZ pulse generation with a repeti-tion rate of 160 GHz using a phase modu-lator driven by a 40 GHz clock and twolow-cost polarization-maintaining fibers.The unwanted low frequency tones aresuppressed by more than 15 dB.

OThS5 • 2:45 p.m.Packet Error Rate and Bit Error RateNon-Deterministic Relationship in Opti-cal Network Applications, Laura B.James1, Andrew W. Moore1, Adrian Wonfor1,Richard Plumb1, Ian H. White1, Richard V.Penty1, Madeleine Glick2, Derek McAuley2;1Univ. of Cambridge, UK, 2Intel Res. Cam-bridge, UK. The non-deterministic rela-tionship between Bit Error Rate andPacket Error Rate is demonstrated for anoptical media access layer in common use.We show that frequency components ofcoded, non-random data can cause thisrelationship.

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OThU5 • 2:30 p.m.Single-Mode-Fiber Direct Coupled 10-Gbps VCSEL-TOSA on Flexible SubstratePlatform, Masaaki Nido, HiroshiHatakeyama, Kazunori Miyoshi; NECCorp., Japan. New-type 10-Gbps VCSEL-TOSA was demonstrated with single-mode-fiber direct coupling optics andflexible substrate platform. The TOSAshowed high fiber coupling efficiency(-1.6dB) and clear 10-Gbps eye-openingwith -2.6dBm average optical power and6dB extinction ratio.

OThV4 • 2:30 p.m.Compact and Low Power Consumption16 x 16 Optical Matrix Switch with Silica-Based PLC Technology, Shunichi Sohma,Toshio Watanabe, Tomohiro Shibata,Hiroshi Takahashi; NTT Photonics Labs,Japan. We employed 1.5%∆ silica-basedwaveguides, heat insulating grooves and anew circuit layout for the first time torealize a 16x16 matrix switch and reducedboth the chip size and the power con-sumption to one third the formerly re-ported values.

OThW5 • 2:30 p.m. InvitedImplications of Nonlinear Interaction ofSignal and Noise in Low-OSNR Trans-mission Systems with FEC, AlbertoBononi1, Paolo Serena1, Jean ChristopheAntona2, Sébastien Bigo2; 1Parma, Italy,2Alcatel R&I, France. We review the perfor-mance degradation due to noise paramet-ric gain in long-haul single-channel NRZterrestrial systems working at low OSNRand its implications on system design inthe presence of forward error correction.

OThX2 • 2:30 p.m.A Simple and Low-Cost 1625 nm OTDRMonitoring System for 350 km WDMNetworks, Han Hyub Lee1, Yun Ho Nam1,Donghan Lee1, Hee Sang Chung2,Kwangjoon Kim2; 1Chungnam Natl. Univ.,Republic of Korea, 2Electronics and Tele-communication Res. Inst., Republic of Ko-rea. An SOA-based 1625nm OTDR moni-toring system in a bypass configuration issuccessfully demonstrated for a 350kmWDM network. No power penalty is ob-served in the 10Gb/s WDM transmissionswhen the OTDR signal is on.

OThU • Low Cost Lasers andPackaging—Continued

OThV • Planar LightwaveCircuits—Continued

OThW • FEC and LineCoding—Continued

OThX • Measurements andPerformance Monitoring—Continued

OThU6 • 2:45 p.m.Novel Packaging of Parallel-OpticalInterconnects for High-End Servers,Steven A. Rosenau1, Jonathan Simon2, LisaA. Buckman Windover1, Benjamin Law1,Graham M. Flower1, Edwin DeGroot1,Annette Grot1, Michael J. Nystrom1, Chao-Kun Lin1, Ashish Tandon1, KostadinDjordjev1, Michael R. Tan1, Laura W.Mirkarimi1, Russell W. Gruhlke1, Hui Xia1,Glenn Rankin1, Mohammed E. Ali1, BrianE. Lemoff1, Kirk S. Giboney1, David W.Dolfi1, Evan G. Colgan3, Bruce Furman3,John Magerlein3, Jeremy Schaub3, DanStigliani, Jr.3; 1Agilent Technologies, USA,2Dust, Inc., USA, 3IBM Corp., USA. A novelpackaging concept is demonstrated whereparallel-optical subassemblies aremounted on the same substrate as proces-sor chips for processor-to-processor com-munication within a high-end server. Asingle-channel bit-error ratio <1.5x10-15was measured at 8 Gb/s.

OThV5 • 2:45 p.m.MZI Based 8-Channel Wideband WDMFilter Array with Low Loss Ripple andHigh Isolation Using Silica-Based PLC,Kazutaka Nara, Haruki Urabe, JunichHasegawa, Noritaka Matsubara, HiroshiKawashima; The Furukawa Electric Co.,Ltd., Japan. We demonstrated a novel MZIbased 8-channel WDM filter array with alow loss ripple and a high isolation for B-PON system and obtained loss ripple<0.77dB, isolation >32dB for all pass-bands and all channels.

OThX3 • 2:45 p.m.Variation of PMD-Induced Outage Ratesand Durations with Link Length on Bur-ied Standard Single-Mode Fibers, PradeepK. Kondamuri1, Christopher Allen1, DouglasL. Richards2; 1Univ. of Kansas/ITTC, USA,2Sprint Corp., USA. From first-order polar-ization-mode dispersion (PMD) outageanalysis using measured differential groupdelay (DGD) data on buried standardsingle-mode fibers, we observed that theoutage rates increase monotonically withlink length, although not linearly.

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OThQ6 • 3:00 p.m.Sensing Characteristics of Long-PeriodFiber Gratings in Photonic Crystal FiberImprinted by CO2 Laser, ByungHyukPark, Jinchae Kim, Tae Joong Eom, ByeongHa Lee, Un-Chul Paek; Gwangju Inst. ofScience and Technology, Republic of Korea.A long period fiber grating imprinted in apure-silica PCF by using CO2 laser beamsis presented. The sensitivities of the reso-nant wavelength under bending, strain,and temperature were measured to be+16.4 nm-m, -0.95 pm/microstrain, and+9 pm/°C, respectively.

OThR6 • 3:00 p.m.Effects of Dispersion, PMD and PDL onthe Intensity Noise Suppression of Spec-trum-Sliced Incoherent Light SourcesUsing Semiconductor Optical Amplifiers,Hoon Kim, Sangho Kim, Seongtaek Hwang,Yunje Oh; Samsung Electronics, Republic ofKorea. We show through experiment thatthe intensity noise suppression of spec-trum-sliced incoherent light sourcesachieved by using gain-saturated semicon-ductor optical amplifiers can be negatedby chromatic dispersion, polarization-mode dispersion, or polarization-depen-dent loss.

OThS6 • 3:00 p.m. InvitedService-Driven Networks for Packet-Aware Transport, Robert Doverspike, K. K.Ramakrishnan, John Wei, Jorge Pastor,Chuck Kalmanek; AT&T Labs Res., USA.This paper presents the Packet-AwareTransport Network (PATN). We alsopresent customer premise capabilitiescritical to providing new Ethernet services.Experimental results for various servicesfrom the customer premise with the PATNarchitecture are also presented

OThT6 • 3:00 p.m.Field Trial Results on Statistics of FastPolarization Changes in Long HaulWDM Transmission Systems, Peter M.Krummrich1, Ernst-Dieter Schmidt1,Werner Weiershausen2, Arnold Mattheus2;1Siemens AG, Germany, 2T-Systems, Ger-many. Field trials were carried out to de-termine the statistics of fast polarizationchanges in optical networks. Importantdata enabling the definition of speed re-quirements for PMD compensators andadaptive equalizers could be obtained.

OThQ • Grating Devices andPoling—Continued

OThR • Optical TransmissionSystems—Continued

OThS • Network Design II—Continued

OThT • PMD: Modeling andMonitoring—Continued

OThQ7 • 3:15 p.m.Dynamics of Fiber Fuse Propagation, IgorA. Bufetov1, Artem A. Frolov1, Evgeny M.Dianov1, Vladimir E. Fortov2, Vladimir P.Efremov2; 1Fiber Optics Res. Ctr., RussianFederation, 2Inst. for High Energy Density,Russian Federation. Dynamics of fiber fuseeffect including process of bubble forma-tion in fiber core was investigated for thefirst time. Bubbles in the core were ob-served not later than 20-70 microsecondsafter passing of a plasma leading edge.

OThR7 • 3:15 p.m.PSK Homodyne Detection Using a PilotCarrier for Multi-Bit/Symbol Transmis-sion with Inverse-RZ Signal, TetsuyaMiyazaki, Fumito Kubota; Natl. Inst. ofInformation and Communications Technol-ogy, Japan. PSK-homodyne detectionusing a polarization-multiplexed pilot-carrier in 2-bit/symbol transmission withan inverse-RZ signal at 20 Gb/s was dem-onstrated. The proposed scheme allows ahigh-extinction-ratio inverse-RZ signal byintensity-noise reduction (>15 dB) in ahomodyne-balanced receiver.

OThT7 • 3:15 p.m.Modified Jones Matrix for Optical PMDCompensation, Fred Heismann; TechnicalConsultant, USA. We numerically simulatethe average frequency dependence of thecoupling that occurs between signal com-ponents in the two principal states ofpolarization and employ our results todefine an improved transfer matrix forPMD compensation.

3:30 p.m.–4:00 p.m. BEVERAGE BREAK, EXHIBIT HALL

4:00 p.m.–6:30 p.m. OFC POSTDEADLINE PAPER SESSIONS

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OThU7 • 3:00 p.m.High Performance Planar LightwaveCircuit Triplexer with Passive OpticalAssembly, Henry Blauvelt, Al Benzoni,Jerry Byrd, Mark Downie, CharlesGrosjean, Stuart Hutchinson, Robert Lee,Frank Monzon, Michael Newkirk, JoelPaslaski, Peter Sercel, David Vernooy, RolfWyss; Xponent Photonics, USA. High per-formance, compact, planar lightwavecircuit based triplexers have been built andtested. The triplexers utilize lasers, photo-diodes, and filters that have been adaptedto enable passive optical assembly of thetriplexer

OThV6 • 3:00 p.m.Novel Wide-Band Low-PDL IntegratedVariable Optical Attenuator in Silica-on-Silicon, Romanas Narevich1, GerhardHeise2, Edvardas Narevicius1, IlyaVorobeichik1, Jens Dieckroeger2, SteveWang1, Detlef Krabe2; 1OpTun Inc., USA,2Optun GmbH, Germany. We present anovel wide band VOA with low PDL. Ourdevice is symmetric MZI-based PLC com-ponent that uses y-junctions and adiabaticcouplers. We describe a model that ex-plains PDL for this VOA and enables po-larization control.

OThW6 • 3:00 p.m.Generalized Low-Density Parity-CheckCodes for Long-Haul High-Speed Opti-cal Communications, Ivan B. Djordjevic1,Olgica Milenkovic2, Bane Vasic1; 1Univ. ofArizona, USA, 2Univ. of Colorado, USA.BER performance of GLDPC codes out-performing currently known turbo andLDPC coding schemes utilized in opticalcommunication systems is analyzed. Larg-est so far reported coding gain of at least11 dB (at 40 Gb/s with 23.6% of redun-dancy) is demonstrated.

OThX4 • 3:00 p.m.Low Probability Jitter Measurements in“Live” Serial Data Streams, Thomas E.Waschura, James R. Waschura; SyntheSysRes. Inc., USA. BER testers measure CDFsin real-time; however, BER applicationshave been limited to using repeating PRBSor fixed sequences. This paper presentsaltering the decision circuit to allow CDFaccumulation in any data stream includ-ing “live” traffic.

OThU • Low Cost Lasers andPackaging—Continued

OThV • Planar LightwaveCircuits—Continued

OThW • FEC and LineCoding—Continued

OThX • Measurements andPerformance Monitoring—Continued

OThU8 • 3:15 p.m.Simplified Optical Coupling and Align-ment Scheme for Cost Effective 10 Gbit/sTOSA Modules Based on Edge EmittersHermetically Packaged in Micro-Ma-chined Silicon Structures, Marcus Winter,Arnd Kilian, Ralf Hauffe; Hymite GmbH,Germany. A simple optical coupling andalignment scheme is presented whichenables the fabrication of cost effective 10Gbit/s TOSA modules which are based onedge-emitting laser diodes packaged her-metically in micro-machined silicon struc-tures.

OThV7 • 3:15 p.m.2-D Array Waveguide Demultiplexing byHybrid Waveguide and Free-Space Op-tics, Trevor K. Chan, Maxim Abashin,Joseph E. Ford; Univ. of California at SanDiego, USA. We demonstrate array wave-length demultiplexing using a free-spacedemultiplexer to separate 9 orders fromeach of 8 AWG outputs onto an InGaAscamera, or scanned output fiber. Thisproof-of-principle device had 0.2nmchannel -20dB bandwidth, >35dB extinc-tion and 15-25dB loss.

OThX5 • 3:15 p.m.Distributed Fiber Optic Intrusion SensorSystem, Juan C. Juarez, Henry F. Taylor;Texas A&M Univ., USA. The first fieldtests of a system for detecting and locatingintruders walking above or near a buriedcable containing a single mode telecom-munications fiber as the sensing elementare reported.

3:30 p.m.–4:00 p.m. BEVERAGE BREAK, EXHIBIT HALL

4:00 p.m.–6:30 p.m. OFC POSTDEADLINE PAPER SESSIONS