Title :
Intra-cavity absorption gas sensors using wavelength modulation and wavelength sweep
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. & Optoelectron. Eng., Tianjin Univ., Tianjin, China
Abstract :
Wavelength modulation technique (WMT) and wavelength sweep technique (WST) are introduced into intra-cavity absorption gas sensors (ICAGS) for low concentration gas detection. The optimized parameters of the system maximizing the signal-to-noise ratio (SNR) are found. Calibration of acetylene concentration and gas recognition are both realized.
Keywords :
fibre lasers; gas sensors; intra-cavity absorption gas sensors; low concentration gas detection; optical fiber laser; wavelength modulation; wavelength sweep; Absorption; Educational institutions; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Gas detectors; Gas lasers; Instruments; Isolators; Laboratories; Optical fiber sensors; Optical fiber laser; gas detection; wavelength modulation; wavelength sweep;
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
DOI :
10.1109/APOS.2008.5226291
