摘要
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.
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 v1＋ v3 band has been measured, and the P 11-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.
基金
supported by the National Basic Research Program of China (Nos.2010CB327801 and 2007CB327801)
