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    • 1937.5nm DFB PM Laser diode


    Central wavelength 1937.5nm, Output power 2mW, Narrow Linewidth < 2MHz, Tolerance ±1nm, PM Fiber, FC/APC

    Part Number  :  PL-DFB-1937.5-A-A81-PA
    Unit Price  :  USD [Please inquire]
    Lead time  :   [Please inquire]
    Inventory quantity   :   [Please inquire]
    Stock NO.   :  A80012438
    Email Us Request for Quotation

    The PL-DFB-1937.5-A-A81 1937.5nm 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.


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

    Parameter

    Symbol

    Min

    Typ

    Max

    Unit

    Centre Wavelength

    λ

    1937

    1937.5

    1938

    nm

    Side Mode Suppression Ratio

    SMSR

    30

    40


    dB

    Threshold Current

    Ith


    20

    30

    mA

    Operating Current

    Iop


    100

    120

    mA

    Chip output Power

    Pf

    1

    2

    3

    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

    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

    p2.png


    Tuning Characteristics

    p3.png


    L-I Curve

    p1.png


    Beam Quality

    D)XRNI6(B736%L%HB68S3.jpg    

    2D 


     ZUYY5)4Z332N5V9_ZJ`JF.png

    3D

    Camera Analysis 

    89A31A99B922B0A5004C93A98748FF54.png





    Related



    Name Model Price
    1937.5nm DFB PM Laser diode [PDF]

    PL-DFB-1937.5-A-A81-SA

    		 [Please inquire]
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    1937.5nm DFB Tunable Laser Diode.pdf



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