Intensity measurement based temperature-independent strain sensor using a highly birefringent photonic crystal fiber loop mirror

被引：41

作者：

Qian, Wenwen ^{[1
]}

Zhao, Chun-Liu ^{[1
]}

Dong, Xinyong ^{[1
]}

Jin, Wei ^{[2
]}

机构：

[1] China Jiliang Univ, Inst Optoelect Technol, Hangzhou, Zhejiang, Peoples R China

[2] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 24期

关键词：

Highly birefringent photonic crystal fiber (HiBi PCF); Fiber loop mirror (FLM); Strain senor; Intensity measurement; INTERFEROMETER;

D O I：

10.1016/j.optcom.2010.07.062

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM) Due to the ultralow thermal sensitivity of the HiBi-PCF the proposed strain sensor is inherently insensitive to temperature When a distributed-feedback (DFB) laser passes through the FLM the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF Based on intensity measurement an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed (C) 2010 Published by Elsevier BV

引用

页码：5250 / 5254

页数：5

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