Tilt sensor based on intermodal photonic crystal fiber interferometer

被引：5
|
作者：
Zhang X. [1 ]
Ni K. [1 ]
Zhao C. [1 ]
Ye M. [1 ]
Jin Y. [1 ]
机构：
[1] Institute of Optoelectronic Technology, China Jiliang University
来源：
Photonic Sensors | 2014年 / 4卷 / 03期
基金：
中国国家自然科学基金;
关键词：
interferometer; intermodal; photonic crystal fiber; Tilt sensors;
D O I：
10.1007/s13320-014-0186-z
中图分类号：
学科分类号：
摘要：
A tilt sensor based on an intermodal photonic crystal fiber (PCF) interferometer is demonstrated. The sensor consists of a tubular filled with NaCl 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 NaCl 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°. © 2014 The Author(s).
引用
收藏
页码：209 / 214
页数：5
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