用于CO传感的空芯带隙型光子晶体光纤的研究  

Research on the Hollow Core Photonic Bandgap Fiber for CO Gas Sensor

作　　者：唐娅荔[1] 杨伯君[1] 

机构地区：[1]北京邮电大学理学院,北京100876

出　　处：《半导体光电》2010年第4期648-651,共4页Semiconductor Optoelectronics

基　　金：国家"973"计划项目(2010CB9232027);国家自然科学基金项目(60578043)

摘　　要：光纤气体传感器具有灵敏度高、防磁、防爆、远程控制等优点。而将空芯带隙型光子晶体光纤应用于气体传感,将使得气体传感与检测的灵敏度进一步提高。文章针对一氧化碳气体的特性及传感器对带隙型光子晶体光纤性能的要求,利用平面波展开法和矢量有限元法,通过分析计算,得出所需的光纤的基本参数,即纤芯的半径、空气孔的半径和间距,使其在纤芯中的传输率达到90%以上,其应用可以使传感器的检测灵敏度得以提高。The gas sensors using hollow core photonic bandgap fiber for CO sensor can provide high sensitivity,immunity to electromagnetic field,remote control and so on.In this paper,for applying the hollow core photonic bandgap fiber to the CO gas sensing and detecting,specific parameters suah as the radius of the core of fiber,the radius of the air hole and the space between two air holes are calculated by means of plane wave method and vector finite element method.The results show that the in-core transmission power is higher than 90%,which indicates that it can improve the detection sensitivity of gas sensors.

关 键 词：空芯带隙型光子晶体光纤 一氧化碳 气体传感 有限元法 

分 类 号：TN312.8[电子电信—物理电子学]