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    • 785nm DFB PM Laser diode


    Central wavelength 785nm, Output power 40mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, PM780 Fiber, FC/APC

    Part Number  :  PL-DFB-785-A-A81-PA
    Unit Price  :  USD [Please inquire]
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    Recommended

    The PL-DFB-785-A-A81 785nm DFB laser diode module made by LD-PD is a cost effective, highly coherent laser source. The DFB laser diode chip is packaged in an industry standard hermetically sealed 14 pin butterfly package with TEC and PD Built in.We special design the area only work in room Temperature. Our diode has good performance from 20-30℃.

    Electrical/Optical Characteristics(Tsub=25°C, CW bias unless stated otherwise)

    Parameter

    Symbol

    Min

    Typ

    Max

    Unit

    Centre Wavelength

    λ

    784

    785

    786

    nm

    Side Mode Suppression Ratio

    SMSR

    30

    40


    dB

    Threshold Current

    Ith


    50

    80

    mA

    Operating Current

    Iop


    200

    250

    mA

    Operation Temperature

    Top

    15

    25

    50

    ℃

    Chip output Power

    Pf

    30

    35

    40

    mW

    Quantum Efficiency

    η

    0.08

    0.12


    mW/mA

    Current Tuning Coefficient

    ∆λ/∆I


    0.015


    nm/mA

    Temperature Tuning Coefficient

    ∆λ/∆T


    0.12


    nm/K

    Polarization Extinction RatioPER1823.4
    		dB

    Forward Voltage

    Vf


    1.3

    2

    V

    Thermistor Resistance

    RT

    9.5

    10

    10.5

    KΩ

    Thermistor Temp. Coefficient



    -4.4


    %/°C

    Connector

    FC/APC


    Spectrum

    785nm DFB Laser.png


    Tuning Characteristics

    785nm DFB Laser3.png

    DFB Linewidth Testing Result

    785nm DFB Laser4.png


    L-I Curve

    785nm DFB Laser2.png




    Related

    Name Model Price
    785nm DFB SM Laser diode [PDF]

    PL-DFB-785-A-A81-SA

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    785nm DFB Laser Diode.pdf


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