sip optical engines for 400g/800g cobo on board zero power • demo’d8m at 100g • best...

Arlon Martin

ECOC 2016 Market Focus

SiP Optical Engines for 400G/800G Cobo On Board

optics and Next Generation Pluggables

© 2016 Mellanox Technologies 2

We Live in a World of Data

Data Needs to be Accessible Always and in Real-Time

Exponential Data Growth – The Best Platforms Are Needed

More DataMore ApplicationsMore Devices

http://www.google.com/url?sa=i&source=images&cd=&cad=rja&docid=eFyymSW17qoA2M&tbnid=U36qv2oyqxo56M:&ved=0CAgQjRwwADgK&url=http://www.arubanetworks.com/solutions/mobile-applications-over-wifi/&ei=v1unUaqjL4G6O7PJgLgH&psig=AFQjCNFCZ04E2AjnGsMJ8c6QyAS5EyBloA&ust=1370008895805241



Enabling Tomorrow’s Platforms Today

Enabling the Use of Data

Data-Intensive

Simulations

Internet of

Things

National

Security

Healthcare

Smart Cars

Business

Intelligence


Moving Data is Key for Using Data

Reducing Data Center

CAPEX and OPEX

Increasing Application

Productivity

Web 2.0

Big DataDatabase

EnterpriseHPC Cloud

Moving More Data - Quickly, Securely, Efficiently

At 10, 25, 40, 50, 56 and 100Gb/s Speeds

Storage


The Future Depends on the Fastest Interconnects

10Gb/s 25/40/50/56/100Gb/s1Gb/s

The Future Depends on Mellanox




25Gb/s is the new 10, 50 is the new 40, and 100 is the Present

Flexibility, Opportunities, Speed

Open Ethernet, Zero Packet Loss

Most Cost-Effective Ethernet Adapter

Same Infrastructure, Same Connectors

25, 50, 100Gb/s at Your FingertipsOne Switch. A World of Options.


Faster Data Movement Enables Better Data Utilization

Nx10Gbs

20G

Nx10Gbs

40GbE

Nx14Gbs

IB FDR

Nx25GbsIB EDR

25GbE

50GbE

100GbE

2000 202020102005 2015

Nx50GbsIB HDR

200GbE

400GbE

Nx10Gbs

10GbE

Gbs – Gigabit per second

Technology Roadmap of Data Speed

Keeping You One Generation Ahead

Enabling the Use of Data


Mellanox View of 100G Data Center Fabrics

8

Data Center Fabrics

Optical Link Length (m)

10 100 500150 300 1000 2000

10

25

50

3 51

20

Da

ta R

ate

pe

r L

an

e (

Gb

\s)

10000500020 30 50 752

Single mode fiber

OM4OM3

Copper Multi-mode fiber

Silicon Photonics

Direct Attach Copper

• Zero power

• Demo’d 8m at 100G

• Best fit 3m

VCSELsDACs

Active Optical Cables

• VCELs or SiP

• Reaches to 200m

• Best fit for 5-20m

VCSEL Transceivers

• Reaches to 100m

• Best fit for MMF

SiP Transceivers

• Reaches to 2km

• Best fit for SMF

• Parallel or WDM

Different technology choices but all use the same SFP28/QSFP28 form factor


Multi-Mode Optics

3m-100m

Where Silicon Photonics Fits in Data Center Fabrics Today

DACServer/ToR-to-ToR

SR4For structured cabling

Short Reaches

PSM4

DAC

WDM4

8-Fiber

MPOAOC: 3-50m

AOCToR-Leaf/Spine

“DAC In the Rack”

3m

Quad 25G SFP

breakout

Dual 50G

Breakout

25G SFP

Quad 25G SFP

breakout

Dual 50G

Breakout

25G SFP

For Structured Cabling

Long Reaches

2-Fiber

LC

Single-Mode Optics

Up to 2Km

Optical

Patch

Panel

Served by SiP


Examples of the many SFP/QSFP options for 25/50/100G networks

Copper DAC Cables

Copper Splitter Cables

Active Optical Cables

MMF Optical

Transceivers

SMF Optical

Transceivers

(silicon photonics)


Can QSFP continue to dominate the market for front panel pluggables?

Scaled thru multiple generations of data rates

Will probably scale 1-2 more generations

Supports copper, MMF and SMF

Supports silicon photonics and traditional single

mode optics

Supports cabling and transceivers

Supports reaches from 0.5m to 10km (and more)

Low-cost package

Used by every enterprise and hyper-scale data

center

Hot pluggable, field replaceable (reliable enough)

“Quad” is good TOR footprint (easy breakouts)

The QSFP form factor has been the “Swiss Army Knife” of datacenters


The front panel density problem: 32-36 QSFP ports in 1ru switch

SN2700: 32-port Non-blocking 100GbE Open Ethernet Spine Switch System (3.2Tb/s)

SB7700 - 36-port EDR 100Gb/s InfiniBand Switch System (3.6Tb/s)

Note: QSFP was a great improvement over SFP; it doubled the density, but we need more


The Future for Silicon Photonics in Data Center Fabrics


1. Density has to improve

2. Power consumption has to decrease

3. Modulator and detectors must scale to 50 and 100Gb/s to match switch port speed

- Avoid gearboxes and 2:1 muxes, which are expensive (power and price)

4. Cost per bit must decrease

- Less packaging

- Use of laser arrays

- More integration

5. For hyperscale data centers with SMF duplex fiber, 8 &16 ch. WDM is required

Technical challenges of 8ch pluggables and 8/16ch Cobo


F-K modulator scales to higher speed: clean optical eye at 50Gb/s

Measured Lage Signal

RF Performance of FK Modulator

• 50Gb/s optical eye

• Measured large signal RF

performance of FK modulator

Small signal frequency response for FK modulator.

With -3.0V bias, and 3dB bandwidth of 60GGHz means

device is capable to modulate 60 Gb/s optical signal


200Gb/s SiP detector performance: very clean eye at 50Gb/s

50Gb/s germanium photodetector

Excellent large signal RF device

performance

Small signal frequency response for detector

3dB bandwidth > 45GHz means device is capable

of detecting >60 Gb/s optical signal


Benefits of integrating WDM in silicon photonics

Tx Chip

Rx Chip

Flip-chip bonded

laser array• Enables Duplex SMF fiber

• Full SiP integration of WDM

• WDM does not increase chip size

• Packaging is easier and simpler

than component assembly

• SiP easily scales to 8 and 16 ch.

• Flip-chip bonded laser arrays

• Integrated detectors


Density & Scalability: Echelle Gratings as Mux/Demux

Echelle gratings scale from 4 to 40+ channels

10x smaller than AWGs

Provide excellent wavelength registration

Very low cross talk

input

outputReflective facet

Slab

SEM of etched facet

Spectra on a 12 channel multiplexer

Tx

Rx


Density & Scalability: Mellanox has Demonstrated > 1Tb/s Devices

1525 1530 1535 1540 1545 1550 1555 1560 1565-35

-30

-25

-20

-15

-10

-5

0

Wavelength(nm)

Loss

(dB

)

TE/TM Spectrum

Lo

ss

(d

B)

1530 1535 1540 1545 1550 1555 15600.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

Wavelength(nm)

Res

pons

ivit

y(A

/W)

TE

TM

40 channel WDM Receiver Layout

16mm x 11.5mm

Connecting one fiber is a little easier and cheaper than connecting 40!


SiP is the enabling technology for new 8/16-ch pluggables and OBO modules

LinkX™ Silicon Photonics: Designed for Data Center Economics

Mellanox silicon photonics chips, drivers and TIAs, QSFP modules, Integrated WDM

No WDM specific lasers, No laser sub-assembly, No hermetic packages

Innovation

Integration

Low power

Visit our booth, 124

Thank You

sip optical engines for 400g/800g cobo on board zero power • demo’d8m at 100g • best...

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