Highly sensitive bend sensor based on Mach-Zehnder interferometer using photonic crystal fiber

被引：120

作者：

Deng, Ming ^{[1
]}

Tang, Chang-Ping ^{[1
]}

Zhu, Tao ^{[1
]}

Rao, Yun-Jiang ^{[1
,2
]}

机构：

[1] Chongqing Univ, Educ Minist China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China

[2] Univ Elect Sci & Technol China, Educ Minist China, Key Lab Broadband Opt Fiber Transmiss & Commun Ne, Chengdu 610054, Sichuan, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2011年 / 284卷 / 12期

关键词：

Fiber-optic sensors; Mach-Zehnder interferometer; Photonic crystal fiber; Bend measurement; LONG-PERIOD; GRATINGS; WRITTEN; STRAIN;

D O I：

10.1016/j.optcom.2011.02.061

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical fiber bend sensor with photonic crystal fiber (PCF) based Mach-Zehnder interferometer (MZI) is demonstrated experimentally. The results show that the PCF-based MZI is sensitive to bending with a sensitivity of 3.046 nm/m(-1) and is independent on temperature with a sensitivity of 0.0019 nm/degrees C, making it the best candidate for temperature insensitive bend sensors. To that end, another kind of bend sensor with higher sensitivity of 5.129 nm/m(-1) is proposed, which is constructed by combining an LPFG and an MZI with zero offset at the second splice mentioned above. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：2849 / 2853

页数：5

共 21 条

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