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Home/ Products/ Light Sources/ Coherent Sources/ Mid infrared laser/ QCL7400-7.4um low-power desktop DFB-QCL mid infrared quantum cascade laser 5/10mW/ 7.4um low power benchtop DFB-QCL mid-infrared quantum cascade laser 5mW (TDLAS integrated control module)

    • 7.4um low power benchtop DFB-QCL mid-infrared quantum cascade laser 5mW (TDLAS integrated control module)

    QCL7400 - 7.4um low-power benchtop DFB-QCL mid-infrared quantum cascade laser is a domestically advanced ultra-low-power QCL DFB laser developed by Idealphotonics in the first half of 2018. The tunable range exceeds 100nm, and the output power is greater than 20mw to meet the industrial needs of customers testing gas sensors. Our laser collimated output has stable output power and high temperature and wavelength stability, which is several orders of magnitude higher than the stability of traditional high-power quantum cascade lasers. It provides an excellent test light source for our mid-infrared test customers.

    Product features：Low power consumption, high power、 High side mode suppression ratio、 Intelligent software control、 Small structure

    Part Number：--

    Application area：TDLAS CO high-precision trace analysis、 Mid-infrared test light source

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    Main parameters
  • Core parameters

  • Peak wavelength Spectral width Output power Laser type

  • Dimension Drawing
    • General Parameters

    Parameter

    Parameter

    Unit

    Indicators



    Min.

    Typical value

    Max.

    PN#


    7.4umDFB-QCL

    Output power 1

    mW


    5


    Peak operating wavelength 2

    um


    7.4


    Spectral width (FWHM)

    MHZ


    1


    Output side mode suppression ratio (SMSR)

    dB

    20



    Output isolation 3



    30


    Wavelength temperature coefficient

    Mrad


    0.6


    Wavelength current coefficient

    mm


    0.2


    Output power stability (8 hours) 4

    nm/A


    ±1

    ±4

    Output power adjustable range

    %

    0


    100

    TEC operating range

    ℃

    0


    50

    Operating voltage

    VAC

    100

    220

    240

    Operating temperature

    ℃

    0

    -

    55

    Storage temperature

    ℃

    -20

    -

    65

    Specifications and dimensions

    mm

    290(L)×108(W)×68(H) mm

    Technical Specifications

    1. Output power is optional;

    2. Peak operating wavelength can be specified;

    3. Output power stability test condition is 25 degrees, after 30 minutes of preheating;

    4. Maximum power consumption refers to the overall power consumption under extreme working conditions;

     5ba5864adc721.png

     

    Measured spectrum

    6000426db6526.jpeg

     

    Wavelength temperature tuning curve

    600042aff025a.jpeg

     

    Power stability

    600042b048d24.jpeg

     

    QCL laser characteristic curve (taking 7.4um typical wavelength as an example)

    Output power characteristic curve:

    5ba586d566681.png

     

    Voltage characteristic curve

    5ba587330b000.png


    TEC current characteristic curve

    5ba587591e221.png


     TEC voltage characteristic curve

    5ba587a6c9ea7.png


    Laser spectrum (CW)

    5ba588125f45b.png


    Wavelength temperature current tuning curve

    5ecc9c4087c7b.png

     

    Quantum cascade laser output spot

    The pixel size of the test camera is 5 μm, and the Gaussian fitting spot diameter is 320 μm.



    Simulation results of absorption spectral lines near 7.4um

    5ba5881279f9b.png



    The relationship curve between peak wavelength and current



    Control software

    5e79b8a85f4d2.png

     

    2F signal acquisition interface:

    5e79b9beab830.png


     

    Algorithm calibration interface:

    5c7537d13a50b.png

     

    Modulation signal linearity test (oscilloscope voltage signal effect diagram):

    5e79b9d598432.jpg

     

     

    Ordering Information

    MIR-QCL- W □-☆-△-XX

    W□□□□: Wavelength

    7400: 7400nm

    10530: 10530nm

    ☆: collimator

    1:  with

    0:  without

    △:  laser type

    FP: QCL-FP

    DFB: QCL-DFB

    XX:  output power

    005=5mw

    010=10mw

    100=100mw


    Optional Configurations

    --

    Downloads

    7.4um low power benchtop DFB-QCL mid-infrared quantum cascade laser 5mW (TDLAS integrated control module).pdf

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