Polarization-maintaining photonic-crystal-fiber-based all-optical polarimetric torsion sensor

被引:39
|
作者
Fu, H. Y. [2 ]
Khijwania, Sunil K. [1 ]
Tam, H. Y. [2 ]
Wai, P. K. A. [2 ]
Lu, C. [2 ]
机构
[1] Indian Inst Technol, Dept Phys, Gauhati, India
[2] Hong Kong Polytech Univ, Photon Res Ctr, Kowloon, Hong Kong, Peoples R China
关键词
SINGLE-MODE FIBERS; TEMPERATURE; INTERFEROMETER; BIREFRINGENCE; DESIGN;
D O I
10.1364/AO.49.005954
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
An application of a polarization-maintaining photonic crystal fiber (PM-PCF) for torsion sensing is proposed and experimentally demonstrated. The response of the sensor is theoretically validated using the Jones matrix. High normalized sensitivity of similar to 0.014/degrees was measured within a linear twist angle range from 30 degrees to 70 degrees. The sensor response was observed to be highly repeatable over a 90 degrees twist in both the clockwise and counterclockwise directions. The proposed sensor exhibits reduced temperature sensitivity due to the low thermal coefficient of PM-PCF, making it an ideal candidate for torsion sensing.(C) 2010 Optical Society of America
引用
收藏
页码:5954 / 5958
页数:5
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