Experimental research of temperature sensor based on twin-core fiber  

作　　者：赵瑞峰 裴丽 李卓轩 宁提纲 范林勇 江微微 

机构地区：[1]Institute of Lightwave Technology, Beijing Jiaotong University [2]Key Laboratory of All Optical Network and Advanced Telecommunication Network of Ministry of Education, Beijing Jiaotong University

出　　处：《Chinese Optics Letters》2011年第6期87-89,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 60837002 and61007007);the Foundation for the Returning Scholars(No. [2008]890);the Ph.D. Programs Foundation of Ministry of Education of China (No. 200800040002);the Fundamental Research Funds for the Central Universities (No. 2011YJS007);Beijing Jiaotong University Science and Technology Innovation Fund for Outstand-ing Doctoral (No. 141061522)

摘　　要：A low-cost, compact, and lossless temperature sensor based on a twin-core fiber （TCF） is demonstrated and manufactured by splicing two single-mode fibers to the ends of a TCF. The extinction ratio of the comb transmission spectrum is bigger than 15 dB, and the temperature sensitivity of the coupling angle is –0.02 rad/（°C· m） at–30–90°C and –0.032 rad/（°C· m） at 90–175°C. Finite element method is used to calculate the supermodes of the TCF, and the result agrees well with the experiment.A low-cost, compact, and lossless temperature sensor based on a twin-core fiber （TCF） is demonstrated and manufactured by splicing two single-mode fibers to the ends of a TCF. The extinction ratio of the comb transmission spectrum is bigger than 15 dB, and the temperature sensitivity of the coupling angle is –0.02 rad/（°C· m） at–30–90°C and –0.032 rad/（°C· m） at 90–175°C. Finite element method is used to calculate the supermodes of the TCF, and the result agrees well with the experiment.

关 键 词：Finite element method Single mode fibers 

分 类 号：TP212.11[自动化与计算机技术—检测技术与自动化装置] O614.121[自动化与计算机技术—控制科学与工程]