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Home/ Products/ Light Sources/ Coherent Sources/ Mid infrared laser/ QCL7420 7.42um low-power desktop DFB-QCL mid infrared quantum cascade laser 10mW/ 7.42um Low Power benchtop DFB-QCL Mid-Infrared Quantum Cascade Laser 10mW (TDLAS Integrated Control Module)

    • 7.42um Low Power benchtop DFB-QCL Mid-Infrared Quantum Cascade Laser 10mW (TDLAS Integrated Control Module)

    QCL7420 - 7.42um low-power benchtop DFB-QCL mid-infrared quantum cascade laser is a 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 10mw 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.

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    Main parameters
  • Core parameters

  • Dimension Drawing
    • General Parameters

    2F signal acquisition interface

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    Algorithm calibration interface

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    Modulation signal linearity test (oscilloscope voltage signal effect diagram)

    1.2.jpg

     


    Main Parameters

     

    Parameters

    Unit

    Specifications

    Min.

    Typ.

    Max.

    7.42umDFB-QCL

    Laser collimated output power

    mW


    10


    Peak operating wavelength

    um


    7.42


    Spectral width (FWHM)

    MHz


    1


    Output side mode suppression ratio (SMSR)

    dB

    20



    Output isolation

    dB


    30


    Wavelength temperature coefficient

    nm/℃


    0.6


    Wavelength current coefficient

    nm/mA


    0.2


    Output power stability (8 hours)

    %


    ±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

    Dimensions

    mm

    290(L)×108(W)×68(H)mm



    Technical indicators:

    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. Max. power consumption refers to the overall power consumption under extreme working conditions.

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    Spectral diagram

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    Wavelength temperature tuning curve

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    Power stability

    1.6.png

     


    Wavelength stability

    1.7.png

     

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

    Output power characteristic curve

    1.81.png

     


    Voltage characteristic curve

     1.9.png


    TEC current characteristic curve

    1.10.png

     

     

    TEC Voltage characteristic curve

    1.11.png

     

    Laser spectrum (continuous)

    1.14.png



    Wavelength Temperature Current Tuning Curve

    1.15.png


     

    Quantum cascade laser output spot

    Test camera pixel size = 5 μm, Gaussian fitting spot diameter is 320 μm


    Simulation results of absorption spectrum near 7.4um

    1.18.png

     

     

     Peak wavelength vs. current curve


    Control software

    1.5.png

     


    Optional Configurations

    --

    Downloads

    No resources available

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