NDLI: Development of a broadly tunable mid-infrared laser source for highly sensitive multiple trace gas detection

Content Provider	IEEE Xplore Digital Library
Author	Xiao-juan Cui Feng-zhong Dong Yu-jun Zhang Rui-feng Kan Yi-ben Cui Min Wang Dong Chen Jian-guo Liu Wen-qing Liu
Copyright Year	2008
Description	Author affiliation: Key Lab. of Environ. Opt. & Technol., Chinese Acad. of Sci., Hefei, China (Xiao-juan Cui; Feng-zhong Dong; Yu-jun Zhang; Rui-feng Kan; Yi-ben Cui; Min Wang; Dong Chen; Jian-guo Liu; Wen-qing Liu)
Abstract	A room-temperature broadly tunable mid-infrared difference frequency laser source for highly sensitive trace gas detection has been developed recently in our laboratory. The mid-infrared laser system is based on quasi-phase-matched (QPM) difference frequency generation (DFG) in a multi-grating, temperature-controlled periodically poled LiNbO3 (PPLN) crystal and employs two near-infrared diode lasers as pump sources. The mid-infrared coherent radiation generated was tunable from 3.2 to 3.7 mum with an output power of about 100 muW. By changing one of the pump laser head with another wavelength range we can readily obtain other needed mid-infrared wavelength range cover. Performance of the mid-infrared laser system and its application to highly sensitive spectroscopic detection of CH4, HCI, CH2O and NO2 has been carried out. A multi-reflection White cell was used in the experiment gaining ppb-level sensitivity. The DFG laser system has the features of compact, room-temperature operation, narrow line-width and broadly continuous tunable range for potential applications in industry and environmental monitoring.
Starting Page	1
Ending Page	5
File Size	698626
Page Count	5
File Format	PDF
ISBN	9781424421312
DOI	10.1109/APOS.2008.5226298
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	multi-gases detection Spectroscopy DFG Laboratories Laser excitation Pump lasers Human computer interaction Tunable circuits and devices Frequency mid-infrared lasersource Diode lasers Gas lasers Power generation
Content Type	Text
Resource Type	Article

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