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  • 850nm single mode fiber-coupled VCSEL laser diode (without TEC)

    PL-VCSEL-1-A81 850nm VCSEL is a vertical emitting MOVPE grown GaAsP/AlGaAs single mode diode laser. Wavelength tuning can be achieved by laser current and temperature tuning. Built-in TEC and thermistor. Our 850 nm single mode VCSEL is designed for high speed, high performance communication applications.

    Product features:Low temperature dependence of electrical and optical properties、 Vertical cavity surface emitting laser、 Internal TEC and thermistor, ESD protection、 Narrow line width、 2nm tunable

    Part Number:--

    Application area:Long distance telephone access network、 Local area network、 Ethernet

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    Main parameters
  • Core parameters
  • Dimension Drawing
  • General Parameters

    Parameters

    Conditions: TOP = 20°C, IOP = 10.0 mA unless otherwise stated (TOP = chip backside temperature, controlled by TEC)

    Parameter

    symbols

    Min.

    Typical

    Max.

    Unit

    Remarks

    Operating wavelength

    λR

    850nm



    Threshold current

    ITH


    1


    mA


    Output power

    Popt

    0.5

    1


    mW


    Threshold voltage

    UTH


    1.8


    V


    Operating current

    IOP


    3


    mA

    Popt = 0.5mW

    Operating voltage

    UOP


    3


    V

    Popt = 0.5 mW

    Photoelectric conversion rate

    ηWP


    12


    %

    Popt = 0.5 mW

    Slope efficiency

    ηS


    0.3


    W/A


    Rise and fall time

    Tr/Tf


    90/120


    Psec


    Differential series resistance

    RS


    100

    200

    Ω

    Popt = 0.5 mW

    3dB modulation bandwidth

    ν3dB

    0.10

    2.5


    GHz

    Popt = 0.5 mW

    Due to ESD protection diode

    Relative noise intensity

    RIN


    -130

    -120

    dB/Hz

    Popt = 0.3 mW @ 1 GHz

    Wavelength current tuning coefficient



    0.6


    nm/mA


    Wavelength temperature tuning coefficient



    0.06


    nm/K


    Thermistor (VCSEL chip)

    Rthermal

    3


    5

    K/mW


    Side mode suppression ratio(SMSR)


    35



    dB

    I = 2 mA

    Beam divergence angle

    θ

    10


    25

    °

    Popt = 0.5mW, full width 1/e2

    Spectral width



    100


    MHz

    Popt = 0.5 mW

    *Above specifications are for device without connectors.

    Tec Characteristics

    Unit

    Min.

    Typical value

    Max.

    Remarks

    Tec current

    mA

    -150(Heating)


    +300(Cooling)

    Proper Heart Sink Required

    NTC Thermistor

    9.5

    10.0

    10.5

    T=25℃@10 KΩ

    NTC Thermistor

    10/exp{3892-(1/289K-I/TOP)}

     

    Spectrum

    图片1.png


    L-I Curve (T@25°C)

     62bd4a27d26b1.png


    Temperature/wavelength tuning curve @TEC current:

     图片3.png


    Laser spot image (2D/3D):

     


    Beam Profile

    In the far field, the intensity distribution of a single-mode VCSEL is a perfect Gaussian shape.

      

    Absolute Maximum Parameters

    Parameter

    Unit

    Min.

    Typical value

    Max.

    Storage temperature

    -40

    25

    125

    Chip temperature

    +10

    25

    40

    Operating current

    mA

    0

    3.0

    5.0

    Forward voltage

    V

    0.8

    3.0

    4.8

    TEC current

    mA

    -150

    -

    +300

    Soldering temperature*

    100

    130

    260

    Power consumption

    mw

    -

    -

    5

    (*TEC temperature must be below 150℃)

     

    Ordering information

    PL-VCSEL-□□□□-☆-A8▽-XX

    □□□□:Wavelength

    0760: 760nm

    0850: 850nm

    *****

    1550:1550nm

    ☆ :TEC

    0:Without TEC

    1:With TEC

    ▽:Wavelength Tolerance

    1:±0.5nm

    2:±1.5nm

    XX: Fiber and Connector Type

    FS=Free Space

    BFSA=Butterfly Package with HI780+ FC/APC

    CPSA=Coaxial Package with HI780+ FC/APC  

    BFSP=Butterfly Package with HI780+ FC/PC  

    CPSP=Coaxial Package with HI780+ FC/PC

    BFPP=PM Fiber+ FC/PC PA=PM Fiber+ FC/APC

    Optional Configurations

    --

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