Tilt Sensor Based on Intermodal Photonic Crystal Fiber Interferometer  

作　　者：Xiaotong ZHANG Kai NI Chunliu ZHAO Manping YE Yongxing JIN 

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

出　　处：《Photonic Sensors》2014年第3期209-214,共6页光子传感器（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China under Grant No. 61108058, the National Basic Research Program of China （973 Program） under Grant No. 2010CB327804, the Zhejing Province Intemational Science and Technoloty Cooperation Special Programme under Grant No. 2013C24018, the National Key Technology R＆D Program 2011BAF06B02 and the Science and Technology Commission of Shanghai Municipality of China under Grant No. 10595812300. Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, medium, provided the original credited. and reproduction in any author（s） and source are

摘　　要：A tilt sensor based on an intermodal photonic crystal fiber （PCF） interferometer is demonstrated. The sensor consists of a tubular filled with NaC1 aqueous solutions and an intermodal PCF interferometer, which is formed by using a short PCF with two single-mode fibers （SMFs） spliced at both ends, and the air-holes in the splice regions are fully collapsed. The intermodal PCF interferometer is fixed in a rigid glass tubular with a slant orientation, and a half of the PCF is immersed in the NaC1 aqueous solutions, while the other half is exposed in air. When tilting the tubular, the length of the PCF immersed changes so that the transmission spectrum moves. Therefore, by monitoring the wavelength shift, the tilt angle can be achieved. In the experiment, a 0.8-cm-length intermodal PCF interferometer was adopted. The sensitivity of the proposed sensor was obtained from - 1.5461 nm/° to -30.1244 nm/° when measuring from -35.1 ° to 37.05°.

关 键 词：Tilt sensors photonic crystal fiber INTERFEROMETER intermodal 

分 类 号：TN253[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]