We have developed a compact sensor system for environmental CO2 studies based on quantum cascade laser. The sensor targets the strongest fundamental CO2 ro-vibrational band at 4.24μm and requires only 8mm optical path to provide sensitivity of 2 ppm.
© 2011 OSA
W. Wang, S. So, F. Xie, C. Caneau, C. Zah, and G. Wysocki, "Compact Quantum Cascade Laser Based Atmospheric CO2 Sensor," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optical Society of America, 2011), paper JMC5.
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