半導體雷射導論 introduction to semiconductor lasers

Upload: stm-works

Post on 30-May-2018

269 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/9/2019 Introduction to Semiconductor Lasers

    1/31

  • 8/9/2019 Introduction to Semiconductor Lasers

    2/31

  • 8/9/2019 Introduction to Semiconductor Lasers

    3/31

    ()

    ()

  • 8/9/2019 Introduction to Semiconductor Lasers

    4/31

    - II -

    p-np-n

    E-k

  • 8/9/2019 Introduction to Semiconductor Lasers

    5/31

    - III -

    L-I

    DFB

  • 8/9/2019 Introduction to Semiconductor Lasers

    6/31

    - IV -

    SPIE

    A. E. Siegman

    2008

  • 8/9/2019 Introduction to Semiconductor Lasers

    7/31

    1

    2/2! ! 3!

    2/3! ! 5!

    2/3/2! q.o ! 7!

    2/3/3! ! 8!

    2/3/4! ! :!

    2/3/5! ;! ! 22!

    2/4! ! 23!

    2/5! ! 25!

    ! 29!

    ! 2:!

    21

    3/2! ! 33!

    3/2/2! ! 33!

    3/2/3!Lspojh.Qfoofz ! 37!

    3/2/4! F.l ! 46!

    3/2/5! ! 54!

    3/3 ! 57!

    3/3/2 ! 57!

    3/3/3 ! 66!

    3/4 71 ! !

    3/4/2! Gfsnj.Ejsbd ! 71!

  • 8/9/2019 Introduction to Semiconductor Lasers

    8/31

    - VI -

    3/4/3!Cpmu{nboo Kpzdf.Ejypo ! 79!

    3/4/4!! 85!

    3/4/5!! 91!

    3/4/6! ! :4!

    3/5!! :7!

    3/6! ! 215!

    3/6/2! ! 216!

    3/6/3! ! 21:!

    3/7! ! 225!

    3/7/2 ! 225!

    3/7/3 ! 229!

    3/7/4 ! 235!

    ! 239!

    ! 241!

    133

    4/2! qo ! 247!

    4/2/2! ! 249!

    4/2/3! ! 254!

    4/2/4! ! 25:!

    4/2/5!! 265!

    4/3! ! 268!

    4/3/2! ! 268!

    4/3/3! ! 272!

    4/3/4! ! 278!

    4/3/5! ! 283!

    4/4! s ! 287!

    4/4/2! ! 287!

  • 8/9/2019 Introduction to Semiconductor Lasers

    9/31

    - VII -

    4/4/3! ! 295!

    4/4/4! ! 29:!

    4/4/5! ! 2:3!

    ! 311!

    ! 313!

    203

    5/2!! 315!

    5/2/2!317 ! !

    5/2/3!! 322!

    5/2/4! ! 326!

    5/2/5! ! 332!

    5/3! ! 337!

    5/3/2! ! 338!

    5/3/3! ! 344!5/4! ! 349!

    5/4/2! ! 349!

    5/4/3! 35 ! !:

    5/4/4!! 364!

    5/5! ! 368!

    5/6! 375 ! !

    5/7! ! 37:!

    ! 384!

    ! 386!

    277

  • 8/9/2019 Introduction to Semiconductor Lasers

    10/31

    - VIII -

    6/2! ! 38:!

    6/3!! 394!

    6/3/2! ! 394!

    6/3/3! 3:3 ! !

    6/3/4! ! 3:9!

    6/4! ! 413!

    6/4/2!! 413!

    6/4/3! ! 41:!

    6/4/4! ! 423!

    6/5! ! 424!

    6/6! ! 42:!

    6/6/2! ! 434!

    6/6/3!! 438!

    6/6/4! ! 442!

    6/6/5!! 446!

    6/7! ! 44:!

    ! 462! ! 467!

    !

    J! ! 468!

    JJ! ! 469!

    JJJ! ! 46:!

    JW! ! 471!

    !

    ! 472!

    !

  • 8/9/2019 Introduction to Semiconductor Lasers

    11/31

    1.1 1.21.31.4

  • 8/9/2019 Introduction to Semiconductor Lasers

    12/31

    - 2 -

    (Heterojunction)

    (Double Heterojunction, DH)

    (Zhores I. Alferov Herbert Kroemer) 2000

    1958 Schawlow Townes

    [1] Maiman 1960 (Ruby Laser)

    [2] 1961

    1962 (GaAs)

    [3-5]

    p-n

    (Homojunction) p-n (depletionregion)(recombination) p-n (resonant cavity)(threshold current density)(Jth > 50 KA/cm2)(pulsed mode)

    2/2!!! !

  • 8/9/2019 Introduction to Semiconductor Lasers

    13/31

    - 3 -

    1963 Kroemer Alferov (doubleheterojunction)(bandgap)(continuous mode) 1969 KresselHayashi Alferov(liquid-phase epitaxy, LPE) GaAs/AlxGa1-xAs Jth = 5 KA/cm

    2

    1970 Hayashi Alferov

    Jth 1.6

    KA/cm2

    (reliability) 1976 (acceleratedlife test) 5104

    1977

    CD

    1980 (vapor-phase epitaxy, VPE)

    (molecular-beam epitaxy, MBE)

    (quantum well)(active layer)( 300 )

    (modulation response)

  • 8/9/2019 Introduction to Semiconductor Lasers

    14/31

    - 4 -

    (distributed feedback,DFB)(single mode)[6](vertical cavity surface emitting laser, VCSEL)(edge emitting laser, EEL) p-n

    (quantum wire)(quantum dot)(photonic crystal)[7]

    1-1

    (1)

    (gain medium)

    (2) (pump excitation)

    (3)

    (4)(output coupler)

    2/3!!! !

  • 8/9/2019 Introduction to Semiconductor Lasers

    15/31

    - 5 -

    p

    n

    1-2

    x

    z

    y

    R1

    R2

    1-1

  • 8/9/2019 Introduction to Semiconductor Lasers

    16/31

    - 6 -

    1-2 (edge emitting laser, EEL)

    p n

    p-n n p

    (recombination)(waveguide) p-n

    (cleaved facet)

    p-n

    1-3(a) p-n V= 0 (band diagram)(conduction band)

    (valence band)

    (Fermi level)

    (thermal equilibrium) p-n

    (energy barrier)(diffusion)Eg/e (Eg

    2/3/2!!! q.o !

  • 8/9/2019 Introduction to Semiconductor Lasers

    17/31

    - 7 -

    e )

    (quasi Fermi level)Eg n p

    p n

    1-3(c)

    Eg

    1-4(a)

    n2

    n1

    1-4(b)

    (critical angle)

    y

    (

    )

    1-4(a)

    2/3/3!!! !

  • 8/9/2019 Introduction to Semiconductor Lasers

    18/31

    - 8 -

    ~g

    hv E

    n p

    (c) V~

    'gE

    /g

    E e

    (b) V~

    n p

    'g

    E

    /gE e

    gE

    1-3 p-n(a) V= 0(b) V= Eg/e

    (c)

    n p

    gE

    'g

    E

    (a) V= 0

    y

    E

  • 8/9/2019 Introduction to Semiconductor Lasers

    19/31

    - 9 -

    n p

    nr:

    nr

    n2

    n1

    y

    (a)

    (b)

    1-4 (a)()()

    (b)

    (non-radiative recombination) (radiativerecombination)

    2/3/4!!! !

    n1

    n1

    n2

    p

    n

  • 8/9/2019 Introduction to Semiconductor Lasers

    20/31

    - 10 -

    (spontaneous emission)(stimulated emission)1-5

    (phase)(light emitting diode, LED)

    (coherent)(monochromatity)(directionality)(gain coefficient)

    (direct bandgap)(density ofstates)

    ()

    (a) (b)

    1-5 (a)(b)

  • 8/9/2019 Introduction to Semiconductor Lasers

    21/31

    - 11 -

    (Ith)

    1-6 (absorption)(loss)(scattering)

    (population inversion)

    LED

    (transparency condition)

    (laser threshold)(threshold current)

    (internal quantum efficiency)100

    2/3/5!!! ;!

    )mbtfs!uisftipme*!

  • 8/9/2019 Introduction to Semiconductor Lasers

    22/31

    - 12 -

    (1) ( 100 cm-1 )

    2/4!!! !

    P()

    I()

    Ith

    1-6

  • 8/9/2019 Introduction to Semiconductor Lasers

    23/31

    - 13 -

    (2)

    p-n

    (3) 1-3(c)()

    (4)

    (5)

    (6)(analog)(digital)

    GHz

    (7)(gain bandwidth)( nm)

    nm

    (8)

  • 8/9/2019 Introduction to Semiconductor Lasers

    24/31

    - 14 -

    (9)

    (10)

    (11)

    (optoelectronicintegrated circuit, OEIC)

    [8]

    [9]

    [10]

    1-7

    2/5!!! !

  • 8/9/2019 Introduction to Semiconductor Lasers

    25/31

    - 15 -

    (defect) 1-7 (compound)E= h

    Eg Eg

    ()

    1.24

    gE (1-1)

    As Ga Al AlxGa1-xAs (ternary)(alloy) Eg(x) = 1.424+1.247x (0 x 0.45)(eV) CD

    ( 780 nm) P

    GaAl In In0.5(AlxGa1-x)0.5P (quaternary) Eg(x) = 1.91+0.61x (0 x 0.53)

    LED DVD

    (N) Ga,Al In

    LED

    (380 nm) (550 nm)

    DVD 405 nm 405 nm

  • 8/9/2019 Introduction to Semiconductor Lasers

    26/31

    - 16 -

    1-7 (lattice constant)

    1-8

    ( 1-8 )

    2000

    (VCSEL)

    (EEL)VCSEL

  • 8/9/2019 Introduction to Semiconductor Lasers

    27/31

    - 17 -

    (longitudinal mode)

    VCSEL

    DVD

    1-8 2006 2007

    ( Laser Focus World 2007)

  • 8/9/2019 Introduction to Semiconductor Lasers

    28/31

  • 8/9/2019 Introduction to Semiconductor Lasers

    29/31

    - 19 -

    1. A. L. Schawlow and C.H. Townes, Infrared and Optical Masers,Phys. Rev.112, 1940 (1958)

    2. T. H. Maiman, Stimulated Optical Radiation in Ruby Nature187,493 (1960)

    3. R. N. Hall, G. E. Fenner, J. D. Kingsley, T. J. Soltys, and R. O.Carlson, Coherent Light Emission from GaAs Junctions Phys. Rev.

    Lett.9, 366 (1962)

    4. T. M. Quist, R. H. Rediker, R. J. Keyes, W. E. Krag, B. Lax, A. L.McWhorter, H. J. Zeigler, Semiconductor maser of GaAs Appl.

    Phys. Lett.1, 91 (1962)

    5. N. Holonyak Jr. and S. F. Bevacqua, Coherent Visible LightEmission From Ga(As1-xPx) Junctions Appl. Phys. Lett. 1, 82

    (1962)

    6. Shing-Chung Wang, Tien-Chang Lu, Chih-Chiang Kao, Jong-TangChu, Gen-Sheng Huang, Hao-Chung Kuo, Shih-Wei Chen,

    Tsung-Ting Kao, Jun-Rong Chen, and Li-Fan Lin, Optically Pumped

    GaN-based Vertical Cavity Surface Emitting Lasers: Technology and

    Characteristics Jpn. J. Appl. Phys., V46, No. 8B, pp5397-5407,

    (2007)

    7. T. C. Lu, S. W. Chen, L. F. Lin, T. T. Kao, C. C. Kao, P. C. Yu, H. C.

    !

  • 8/9/2019 Introduction to Semiconductor Lasers

    30/31

    - 20 -

    Kuo, S. C. Wang and S. H. Fan, GaN-based two-dimensional

    surface-emitting photonic crystal lasers with AlN/GaN distributed

    Bragg reflectors Appl. Phys. Lett.,92, 011129 (2008)

    8. Y. Suematsu, Proc. IEEE71 , 692 (1983)9. R. A. Bartolini, A. E. Bell, and F. W. Spong. IEEE J. Quantum.

    Electron.QE-17, 69 (1981)

    10.S. K. Ghandhi, R. Siviy, and J. M. Borrego, The growth of the oxidefilms at room temperature Appl. Phys. Lett. 34, 835 (1979)

  • 8/9/2019 Introduction to Semiconductor Lasers

    31/31

    I n t r o d u c t i o n t o

    semiconductor lasers.

    --. -- , 2008.09

    .

    ISBN 978-957-11-5299-8

    1. 2.

    448.68 97012960

    5D92

    Introduction to Semiconductor Lasers

    (395.7) (6.3) 1063394

    (02)2705-5066 (02)2706-6100

    http://www.wunan.com.tw

    wunanwunan. com. tw

    01068953

    /6

    (04)2223-0891 (04)2223-3549

    /290

    (07)2358-702 (07)2350-236

    2 0 0 8 9