Mid-Infrared Tunable Diode Laser Absorption Spectroscopy for Gas Sensing

Author

Zhang, Yong-gang ; Xu, Gang-Yi ; Li, Ai-zhen ; Li, Yao-yao ; Gu, Yi ; Liu, Sheng ; Wei, Lin

Author_Institution

Chinese Acad. of Sci., Shanghai

fYear

2006

fDate

18-22 Sept. 2006

Firstpage

181

Lastpage

181

Abstract

Most of gaseous materials show characteristic optical absorptions, especially in the mid-infrared (2-25 mum) band. The optical fingerprints of different gases have made the spectral absorption a unique method of gas analysis. The tunable diode laser absorption spectroscopy (TDLAS) method use a compact single mode diode laser tuning over an interested wavelength range swiftly can fulfill the function of spectroscopy scan. In this talk the TDLAS experiments using home made mid-infrared diode lasers for gas sensing are represented, and various effects affecting the performance of the sensor have been discussed.

Keywords

chemical analysis; gas sensors; laser modes; laser tuning; light absorption; semiconductor lasers; TDLAS method; gas analysis; gas sensor; gaseous materials; mid-infrared tunable diode laser absorption spectroscopy; optical absorptions; optical fingerprints; single mode diode laser tuning; spectral absorption; tunable diode laser absorption spectroscopy method; Absorption; Diode lasers; Fingerprint recognition; Gases; Laser tuning; Optical materials; Optical sensors; Optical tuning; Spectroscopy; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0400-2

Electronic_ISBN

1-4244-0400-2

Type

conf

DOI

10.1109/ICIMW.2006.368389

Filename

4222123