C2H2 sensing at V1+V3 band with a hollow-core photonic bandgap fiber |
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| Authors: | Jing Lei Yao Jian-quan Huang Xiao-hui and Lu Ying |
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| Institution: | Jing Lei1,2**,Yao Jian-quan1,2,Huang Xiao-hui1,and Lu Ying1,2 1. College of precision instruments and optoelectronic engineering,Tianjin University,Tianjin 300072,China,2. Key laboratory of Optoelectronic Information Technology,Ministry of Education of China |
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| 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 ν
1+ν
3 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. |
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| Keywords: | |
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