Comb filter-based fiber-optic methane sensor system with mitigation of cross gas sensitivity

• Main Authors: Liu, Duan, Fu, Songnian, Tang, Ming, Shum, Perry Ping, Liu, Deming
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/96859; http://hdl.handle.net/10220/11652
• Institution: Nanyang Technological University

A remote fiber-optic methane gas sensor system is proposed and demonstrated with accurate gas concentration measurement and good mitigation of cross gas sensitivity. We use a polarization-maintaining photonic crystal fiber (PM-PCF)-based Sagnac loop filter to slice the spectrum of a broadband light...