Curvature Measurement with Photonic Crystal Fiber based Mach-Zehnder Interferometer

被引:0
作者
Deng, Ming [1 ]
Tang, Chang-Ping [1 ]
Zhu, Tao [1 ]
Rao, Yun-Jiang [1 ]
机构
[1] Chongqing Univ, Minist Educ, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China
来源
21ST INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS | 2011年 / 7753卷
关键词
Fiber optic sensors; Mach-Zehnder Interferometer; Photonic crystal fiber; Bending measurement; LONG-PERIOD; BEND SENSOR; GRATINGS;
D O I
10.1117/12.884852
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A PCF-based MZI with regular and high-contrast fringe pattern is fabricated by splicing a section of PCF in between two SMFs with a commercial available fusion splicer. Its resonant wavelength is sensitive to external bending with a sensitivity of 3.046nm/m but independent on temperature. To that end, we also propose another kind of bending sensor with higher sensitivity of 5.129nm/m. This device is constructed by combining an LPG and an MZI with zero offset at the second splice. It is anticipated that the high sensitive structures will find applications in robot arms and artificial limbs.
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页数:4
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