C_2H_2 sensing at V_1+V_3 band with a hollow-core photonic bandgap fiber  

作　　者：景磊 姚建铨 黄晓慧 陆颖 

机构地区：[1]College of precision instruments and optoelectronic engineering, Tianjin University [2]Key laboratory of Optoelectronic Information Technology, Ministry of Education of China, Tianjin University

出　　处：《Optoelectronics Letters》2011年第6期463-465,共3页光电子快报（英文版）

基　　金：supported by the National Basic Research Program of China (Nos.2010CB327801 and 2007CB327801)

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.

关 键 词：光子带隙光纤 光纤传感 乙炔 空心 气体混合物 C2H2 高灵敏度 PCF 

分 类 号：TP212.14[自动化与计算机技术—检测技术与自动化装置]