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  • 935nm DFB Laser Diode For Seed Laser

    • 935nm DFB Laser Diode For Seed Laser     


    The PL-DFB-935-B-A81 935nm DFB laser diode module made by LD-PD is a cost effec-tive, highly coherent laser source. The DFB laser diode chip is packaged in an indus-try standard hermetically sealed 14 pin butterfly package with TEC and PD Built in.



    Product model


    Name Model Price
    935nm DFB PM Laser diode   [PDF]  [RFQ]

    PL-DFB-935-B-A81-PA
    Stock NO.: A80012032     		[Please inquire]
     Call us 
    935nm DFB SM Laser diode   [PDF]  [RFQ]

    PL-DFB-935-B-A81-SA
    Stock NO.: A80012031     		[Please inquire]
     Call us 

    Parameter


    Features

    ● Narrow Linewidth < 2MHz

    ● Excellent wavelength control and stability

    ● Industry Standard 14 pin Butterfly package

    ● Mode-Hop free tuning

    ● Excellant reliability

    ● Customer specific wavelengths available

    Laser Specifications

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

    Parameter

    Symbol

    Min

    Typ

    Max

    Unit

    Centre Wavelength

    λ

    934

    935

    936

    nm

    Side Mode Suppression Ratio

    SMSR

    30

    40


    dB

    Threshold Current

    Ith


    20

    30

    mA

    Operating Current

    Iop


    250

    300

    mA

    Chip output Power

    Pf


    40

    50

    mW

    Quantum Efficiency

    η

    0.08

    0.15

    		0.2

    mW/mA

    Current Tuning Coefficient

    ∆λ/∆I


    0.005


    nm/mA

    Temperature Tuning Coefficient

    ∆λ/∆T


    0.09


    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

    935.png


    Tuning Characteristics

    935.2.png

    DFB Linewidth Testing Result

    3F}3~5GMTW8F9$)8_GB@VSG.png


    L-I Curve

    935.1.png


    Beam Quality


    935.4.jpeg

    Package Size

    pk.png

    Pin definition

    -56e5388b18cfc12b_副本.jpg

    1

    Thermoelectric Cooler (+)

    8

    N/C

    2

    Thermistor

    9

    N/C

    3

    PD Monitor Anode (-)

    10

    Laser Anode (+)

    4

    PD Monitor Cathode (+)

    11

    Laser Cathode (–)

    5

    Thermistor 

    12

    N/C

    6

    N/C

    13

    Case Ground

    7

    N/C

    14

    Thermoelectric Cooler (–)


    Absolute  Maximum Ratings

    Item

    Unit

    Min

    Typ

    Max

    Case Temperature

    ℃

    -5

    25

    70

    Chip Temperature

    ℃

    +10

    25

    40

    Operating Current

    mA

    0

    120

    150

    Forward Voltage

    V

    0.8

    1.2

    2.1

    TEC Current

    A

    -

    1.2

    1.2

    Reverse Voltage（LD）

    V

    -

    -

    2.0

    Reverse Voltage(PD)

    V

    -

    -

    20

    Application

    ● Tunable diode laser absorption spectroscopy

    ● Seed laser

    ● Fiber laser

    Ordering Info

    PL-DFB- □□□□-☆-A8▽- XX

    □□□□: Wavelength

    972.4: 972.4nm

    1030: 1030nm

    1532: 1532nm

    1392: 1392nm

    1512: 1512nm

    1567: 1567nm

    *****

    1653.7: 1653.7nm

    ☆ : Output Power

    A: 20-30mW

    B: 40-60mW

    ▽: Wavelength Tolerance

    1: ±1nm

    2: ±2nm

    XX: Fiber and Connector Type

    SA=HI1060+ FC/APC

    SP=HI1060+ FC/PC

    PA=PM980 Fiber+ FC/APC

    PP=PM980 Fiber+ FC/PC



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