Temperature-independent refractometer based on a tapered photonic crystal fiber interferometer

被引：15
|
作者：
Ni, Kai [1 ,2 ]
Chan, Chi Chiu [2 ]
Dong, Xinyong [1 ,2 ]
Poh, C. L. [2 ]
Li, Tao [1 ,2 ]
机构：
[1] China Jiliang Univ, Inst Optoeletron Technol, Hangzhou 310027, Zhejiang, Peoples R China
[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Div Bioengn, Singapore 637457, Singapore
来源：
OPTICS COMMUNICATIONS | 2013年 / 291卷
基金：
中国国家自然科学基金;
关键词：
Refractometer; Temperature-independent; Photonic crystal fiber interferometer; Fiber tapers; SENSITIVITY; SENSOR;
D O I：
10.1016/j.optcom.2012.11.037
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A temperature-independent refractometer by using a tapered photonic crystal fiber (PCF) based Mach-Zehnder interferometer (MZI) is proposed and experimentally demonstrated. It is fabricated by sandwiching a tapered PCF of 29 mm long between two standard single mode fibers (SMFs) with the fully collapsed air holes of the PCF in the fusion splicing region. It has been found that tapering the PCF greatly enhances the sensitivity of the refractometer. A maximum sensitivity of 1529 nm/RIU (refractive index unit) is achieved within the range from 1.3355 to 1.413. The refractometer is nearly temperature-insensitive due to the ultra low temperature dependence of the used. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：238 / 241
页数：4
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