Jing Lei,Yao Jian-quan,Huang Xiao-hui,Lu Ying.C2H2 sensing at V1+V3 band with a hollow-core photonic bandgap fiber[J].Optoelectronics Letters,2011,7(6):463-465 C2H2 sensing at V1+V3 band with a hollow-core photonic bandgap fiber Author Name Affiliation Jing Lei  College of precision instruments and optoelectronic engineering, Tianjin University； Key laboratory of Optoelectronic Information Technology, Ministry of Education of China, Tianjin University；  Yao Jian-quan  College of precision instruments and optoelectronic engineering, Tianjin University； Key laboratory of Optoelectronic Information Technology, Ministry of Education of China, Tianjin University；  Huang Xiao-hui  College of precision instruments and optoelectronic engineering, Tianjin University； Key laboratory of Optoelectronic Information Technology, Ministry of Education of China, Tianjin University；  Lu Ying  College of precision instruments and optoelectronic engineering, Tianjin University； Key laboratory of Optoelectronic Information Technology, Ministry of Education of China, Tianjin University；  Abstract:       In this paper, we demonstrate the acetylehe (C2H2) sensor with high sensitivity using a hollow-core photonic bandgap fiber (HC-PCF). Experiments for measuring C2H2 concentrations in gas mixture are performed. Using a 2 m-long HC-PCF as gas cell, the spectrum of acetylene at n1+n3 band has been measured, and the P11-branch has been selected for the purpose of sensing. A minimum detectivity of 143 parts per million by volume (ppmv) for the system configuration is estimated. 更多还原 Hits: 3867 Download times: 189 View Full Text    Download reader