A Fresnel Reflection-Based Optical Fiber Sensor System for Remote Refractive Index Measurement Using an OTDR  

作　　者：Jianying Yuan Chunliu Zhao Manping Ye Juan Kang Zaixuan Zhang Shangzhong Jin 

机构地区：[1]Institute of Optoelectronic Technology,China Jiliang University,Hangzhou,310018,China

出　　处：《Photonic Sensors》2014年第1期48-52,共5页光子传感器（英文版）

摘　　要：In this paper, we propose a Fresnel reflection-based optical fiber sensor system for remote refractive index measurement using the optical time domain reflectometry technique as an interrogation method. The surrounding refractive index from a long distance away can be measured easily by using this sensor system, which operates based on testing the Fresnel reflection intensity from the fiber-sample interface. This system is a simple configuration, which is easy to handle. Experimental results showed that the range of this measurement could reach about 100.8km, and the refractive index sensitivities were from 38.71 dB/RIU to 304.89 dB/RIU in the refractive index （RI） range from 1.3486 to 1.4525.

关 键 词：Fresnel reflection optical fiber sensor remote measurement OTDR 

分 类 号：TN929.11[电子电信—通信与信息系统] O435.1[电子电信—信息与通信工程]