干涉型PCF传感器的设计与研究  

Study on and design of an interferometer-based PCF sensor

作　　者：李希忠[1] 施伟华[1] 钱礼国[1] 赵岩[1] 

机构地区：[1]南京邮电大学光电工程学院,江苏南京210003

出　　处：《光通信研究》2012年第2期42-44,共3页Study on Optical Communications

摘　　要：文章利用长周期光栅的耦合作用,设计了一种级联长周期光栅的PCF(光子晶体光纤)传感器,并对其应变传感特性进行了研究。分析了应变对级联长周期光栅的干涉谱的影响,计算了应变与干涉峰的关系,结果表明,该结构具有较高的灵敏度及较好的线性关系。A Photonic Crystal Fiber（PCF） sensor for cascaded Long Period Grating（LPG） is designed on the basis of its coupling effect and its strain sensing characteristics studied.Analysis is made of the impacts of strain on the interference spectrum of the cascaded LPG and the relationship between the strain and the interference peak is calculated,the result of which shows that this structure has a fairly high sensitivity and good linear relationship.

关 键 词：光子晶体光纤 长周期光栅 干涉 应变传感 

分 类 号：TN253[电子电信—物理电子学]