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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 20, Iss. 14 — Jul. 15, 1981
  • pp: 2534–2538

Air pollution monitoring with a Q-switched CO2-laser lidar using heterodyne detection

Stefan Lundqvist, Carl-Olof Fält, Ulf Persson, Bo Marthinsson, and Sverre T. Eng  »View Author Affiliations


Applied Optics, Vol. 20, Issue 14, pp. 2534-2538 (1981)
http://dx.doi.org/10.1364/AO.20.002534


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Abstract

A differential absorption lidar (DIAL) using a Q-switched CO2 laser and a heterodyne receiver has been developed. The DIAL system is highly automated with computer-controlled laser-line selection and signal processing. The transmitter operates at a pulse-repetition frequency of 20 kHz and has an average output power of 1.8 W. A wideband HgCdTe detector is used together with a high speed adding buffer to detect the return signals. The system has been used in a field experiment to monitor ethylene emission from a petrochemical factory.

© 1981 Optical Society of America

History
Original Manuscript: January 2, 1981
Published: July 15, 1981

Citation
Stefan Lundqvist, Carl-Olof Fält, Ulf Persson, Bo Marthinsson, and Sverre T. Eng, "Air pollution monitoring with a Q-switched CO2-laser lidar using heterodyne detection," Appl. Opt. 20, 2534-2538 (1981)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-20-14-2534


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References

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