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7.4µm Low Power Desktop DFB-QCL Mid-Infrared Quantum Cascade Laser 10mW (TDLAS Integrated Control Module)
7.4µm Low Power Desktop DFB-QCL Mid-Infrared Quantum Cascade Laser 10mW (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
Application area:TDLAS CO high-precision trace analysis、 Mid-infrared test light source
Unit Price
Please contact customer service for a discounted quote.
Part Number
TDLAS-MIR-QCL-W7400-1-DFB-010
Lead Time
Please contact customer service for lead time.
Stock
Please contact customer service for stock availability.
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General Parameters
Dimensional Drawing

Parameter

Parameter

Unit

Indicators



Min.

Typical value

Max.

PN#


7.4umDFB-QCL

Output power 1

mW


10


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



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