基于F-P腔干涉的两段式光纤传感器  

Two section optical fiber sensor based on F-P cavity interference

作　　者：徐正天 杨树[1] XU Zhengtian;YANG Shu(School of Sciences,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京邮电大学理学院,北京100876

出　　处：《光通信技术》2020年第10期9-11,共3页Optical Communication Technology

摘　　要：一般的传感器灵敏度高,但体积大,不便于封装。法布里-珀罗(F-P)腔型传感器结构简单、体积小和封装容易等优点获得了广泛关注。通过熔接2段不同折射率光纤,并将传感光纤包层去掉、浸泡在待测液体中,构成了F-P腔折射率传感器。传感器的最小分辨率为3.0135×10^-4,传感光纤长度仅为15μm,尺寸远小于其它F-P腔干涉仪,并且对传感光纤长度精度要求很低,便于制造。General sensors have high sensitivity,but they are bulky and not easy to package.Fabry-Perot(F-P)cavity type sensor has been widely concerned for its simple structure,small size and easy packaging.An F-P cavity refractive index sensor is formed by fusing two different refractive index optical fibers and immersing the sensing fiber cladding in the liquid to be measured.The minimum resolution of the sensor is 3.0135×10^-4,the length of sensing optical fiber is only 15μm,the size is far smaller than other F-P cavity interferometers,and the accuracy of the length of sensing optical fiber is very low,so it is easy to manufacture.

关 键 词：法布里-珀罗腔干涉仪 折射率传感器 光纤 

分 类 号：TN256[电子电信—物理电子学]