A novel all-fiber methane detection system was constructed.In this work,it is proposed a novel optical fiber gas sensor based on cascade of hollow-core photonic bandgap fibers(PBF).Harmonic detectin was used as signal processing method.The diffusion of gas inside of the hollow core is analysed and the optimal design of sensing gas cell is completed.The feasibility of the sensor for methane detection is verified by experements.
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吴希军,王玉田,赵兴涛,潘钊.空芯光子带隙光纤在甲烷检测中的应用[J].激光与红外,2010,40(4):410~413 WU Xi-jun, WANG Yu-tian, ZHAO Xing-tao, PAN Zhao. Application research of hollow-core photonic crystal fibers in methane sensing system[J]. LASER & INFRARED,2010,40(4):410~413