Parameter

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

QCL laser characteristic curve ( Output power characteristic curve)

Laser spectrum (continuous)

Wavelength Tuning Curve

Beam Analysis

Laboratory Testing

An experiment was conducted to measure NF₃ gas absorption using the 9.68μm laser (with collimated output), a 5-meter path length miniaturized mid-infrared gas cell, and a PCI-4TE-9-1x1 infrared detection module.

Procedure:Connect the 9.68μm quantum cascade laser to power and USB, and turn on the laser via the dedicated TDLAS control software.Connect the infrared detection module to one end of the gas cell. Align the laser with the gas cell's input aperture on the other end, adjusting the laser's position to ensure coaxial alignment.Connect the detector's received signal to the laser, and use a lock-in amplifier to demodulate the second harmonic signal for observation on an oscilloscope.Tune the laser's phase, current, gain, and temperature to obtain the optimal signal waveform.

To verify that the absorption was due to NF₃ gas, the parameters were checked against a database.

We can see that the absorption peaks in our oscilloscope trace correspond to the database entries, thus confirming that the absorption spectrum observed on the oscilloscope is indeed from NF₃ gas.

Ordering Information

MP-QCL- W□□□□ -☆-△-XX

W□□□□: Wavelength

5260: 5260nm

5184: 5184nm

7160: 7160nm

7400: 7400nm

10530: 10530nm

 ☆: collimated output

1: with

0: without

△: laser type

FP: QCL-FP

DFB: QCL-DFB

XX: output power

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