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    • 1874nm DFB Tunable Laser Diode     


    The PL-DFB-1874-A1 1874nm 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.



    Product model


    Name Model Price
    1874nm DFB SM Laser diode   [PDF]  [RFQ]

    PL-DFB-1874-A-A81-SA     		[Please inquire]
     Call us 
    1874nm DFB PM Laser diode   [PDF]  [RFQ]

    PL-DFB-1874-A-A81-PA     		[Please inquire]
     Call us 

    Parameter


    Features

    ● Narrow Linewidth < 2MHz

    ● Excellent wavelength control and stability

    ● Industry Standard 14 pin Butterfly package

    ● Mode-Hop free tuning

    ● Excellent 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

    1873

    1874

    1875

    nm

    Side Mode Suppression Ratio

    SMSR

    30

    40


    dB

    Threshold Current

    Ith


    40

    50

    mA

    Operating Current

    Iop


    150

    200

    mA

    Chip output Power

    Pf

    12

    15

    18

    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

    Polarization Extinction RatioPER≥1822.8
    		dB

    Thermistor Temp. Coefficient



    -4.4


    %/°C

    Connector

    FC/APC


    Spectrum

    1874nm DFB Laser.png

    L-I Curve

    1874nm DFB Laser1.png


    Tuning Characteristics

    1874nm DFB Laser3.png


    Beam Quality

    D)XRNI6(B736%L%HB68S3.jpg    

    2D 


     ZUYY5)4Z332N5V9_ZJ`JF.png

    3D

    Package Size

    1874nm DFB Laser4.png

    Pin definition

    1874nm DFB Laser5.png

    Pin Connection

    PIN#

    Function

    PIN#

    Function

    1

    Thermistor

    8

    Case Ground

    2

    Thermistor

    9

    Case Ground

    3

    LD(-)

    10

    NC

    4

    NC

    11

    LD(+)

    5

    NC

    12

    LD(-)

    6

    TEC (+)

    13

    LD (+)

    7

    TEC (–)

    14

    NC


    Absolute  Maximum Ratings

    Item

    Unit

    Min

    Typ

    Max

    Case Temperature

      ℃

    -5

    25

    70

    Chip Temperature

    ℃

    +10

    25

    40

    Operating Current

    mA

    0

    150

    200

    Forward Voltage

    V

    0.8

    1.2

    1.8

    TEC Current

    A

    -

    -

    1.2

    Reverse Voltage（LD）

    V

    -

    -

    2.0

    Reverse Voltage(PD)

    V

    -

    -

    20


    Application

    ● Tunable diode laser absorption spectroscopy

    ● Gas Monitoring

    Ordering Info

    PL-DFB-□□□□-☆-A8▽-XX

    □□□□：Wavelength

    1512: 1512nm

    *****

    1653.7: 1653.7nm

    1866: 1866nm

    ☆ ：Output Power

    A：15mW

    B：50mW

    ▽：Wavelength Tolerance

    1：±1nm

    2：±2nm

    XX: Fiber and Connector Type

    SA=SMF-28E+ FC/APC

    SP=SMF-28E+ FC/PC

    PP=PM Fiber+ FC/PC

    PA=PM Fiber+ FC/APC



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    10
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    Add : 288 Woodlands Loop #04-00, Singapore 738100 Email : info@ld-pd.com Tel : （+65)31638599 Fax : (+65)31588700 Copyright © 2012-2026 LD-PD PTE. LTD. All Rights Reverved  LD-PD PTE. LTD. is proud to be RoHS certified through SGS and ISO9001 certified through GIC.
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