Intra-cavity absorption sensors for gas detection using wavelength sweep technique

Author

Liu, Kun ; Jing, Wencai ; Peng, Gangding ; Zhang, Jianzhong ; Wang, Yan ; Liu, Tiegen ; Jia, Dagong ; Zhang, Hongxia ; Zhang, Yimo

Author_Institution

Coll. of Precision Instrum. & Opto-Electron. Eng., Tianjin Univ., Tianjin, China

fYear

2008

fDate

7-9 Nov. 2008

Firstpage

1

Lastpage

4

Abstract

Wavelength sweep technique (WST) is introduced into intra-cavity fiber laser (ICFL) for low concentration gas detection. The limitation induced by noise can be eliminated using this method, and the performance of the system is improved. The sensitivity of the system is reduced to less than 300 ppm. With WST, sweeping characteristic of the ICFL can be described according to known gas absorption spectra.

Keywords

fibre lasers; gas sensors; gas detection; intra-cavity absorption sensors; intra-cavity fiber laser; optical fibre laser; spectrum analysis; wavelength measurement; wavelength sweep technique; Absorption; Educational institutions; Erbium-doped fiber amplifier; Fiber lasers; Gas detectors; Gas lasers; Instruments; Laboratories; Laser noise; Optical fiber sensors; Optical fiber laser; gas detection; spectrum analysis; wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Sensors Conference, 2008. APOS '08. 1st Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-2131-2

Electronic_ISBN

978-1-4244-2132-9

Type

conf

DOI

10.1109/APOS.2008.5226292

Filename

5226292