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Proceedings Paper

Optical heterodyning in differential tunable CO2 laser systems
Author(s): Anatoly S. Boreysho; Sergei Ya. Chakchir; Maxim A. Konyaev; Konstantin A. Konovalov; Andrei V. Savin
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Paper Abstract

Long-wave infrared (LWIR) differential laser systems based on single-frequency pulsed CO2 lasers are used in heterodyne lidars for detection of atmospheric pollutions at extremely far distances. Issues related to control of the two-channel tunable single-frequency CO2 laser system, which includes two pulsed TEA laser and four CW wave-guide CO2 lasers (two injectors and two local oscillators) are discussed. The special hardware and software -Automatic Frequency Control system (AFC) - have been developed for the effective operation in wide spectral range (>60 lines of CO2 laser). The main task of this system is to keep optimal ratio between a frequency of the injection laser generation and modes of the TEA laser's resonator. The optimal ratio provides maximal probability of the single-frequency pulse generation taking the TEA chirp into account. Experimental data presented on the temporal and spectral structure of the TEA laser pulse generated with injection of the single-frequency CW radiation.

Paper Details

Date Published: 21 April 2006
PDF: 14 pages
Proc. SPIE 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 61602R (21 April 2006); doi: 10.1117/12.675903
Show Author Affiliations
Anatoly S. Boreysho, Laser Systems Ltd. (Russia)
Sergei Ya. Chakchir, Laser Systems Ltd. (Russia)
Maxim A. Konyaev, Laser Systems Ltd. (Russia)
Konstantin A. Konovalov, Laser Systems Ltd. (Russia)
Andrei V. Savin, Laser Systems Ltd. (Russia)

Published in SPIE Proceedings Vol. 6160:
Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics
Gelii A. Zherebtsov; Gennadii G. Matvienko, Editor(s)

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