Miniature refractometer based on Mach-Zehnder interferometer with waist-enlarged fusion bitaper

被引：39

作者：

Ni, Kai ^{[1
,2
]}

Dong, Xinyong ^{[1
,2
]}

Chan, Chi Chiu ^{[2
]}

Li, Tao ^{[1
,2
]}

Hu, Limin ^{[1
,2
]}

Qian, Wenwen ^{[1
,2
]}

机构：

[1] China Jiliang Univ, Inst Optoelet 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 / 292卷

基金：

中国国家自然科学基金;

关键词：

Mach-Zehnder interferometer; Refractometer; Waist-enlarged fusion bitaper; REFRACTIVE-INDEX SENSOR; CRYSTAL FIBER INTERFEROMETER; SENSITIVITY;

D O I：

10.1016/j.optcom.2012.11.012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A miniature refractometer by using a Mach-Zehnder interferometer (MZI) in a standard single mode fiber (SMF) with two waist-enlarged fusion bitapers is proposed and experimentally demonstrated. Such an all-fiber SMF-MZI incorporates an intermodal interference between the core mode and cladding modes. Because the cladding modes are sensitive to the external environment, the SMF-MZI is exploited for refractive index measurement. Experimentally, high sensitivity of 266.5 nm/RIU and resolution of 3.75 x 10(-5) RIU are achieved within a range from 1346 to 1.4412. The temperature effect of the proposed refractometer is also analyzed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：84 / 86

页数：3

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