Temperature-Insensitive Polarimetric Fiber Strain Sensor with Short Polarization-Maintaining Photonic Crystal Fiber

被引:17
|
作者
Noh, Tae Kyu [1 ]
Lee, Yong Wook [1 ]
机构
[1] Pukyong Natl Univ, Sch Elect Engn, Pusan 608737, South Korea
基金
新加坡国家研究基金会;
关键词
D O I
10.1143/APEX.5.112502
中图分类号
O59 [应用物理学];
学科分类号
摘要
By incorporating a Sagnac birefringence loop composed of a 3.9- or 5.2-cm-long polarization-maintaining photonic crystal fiber, we demonstrated a temperature-insensitive polarimetric fiber strain sensor with a reduced length of the sensing fiber. The sensing fiber is shortened by more than two times compared with the shortest sensing fiber used in other previous works for localized sensing and sensor compactness. With a 3.9-cm-long sensing fiber, a strain sensitivity of similar to 2.34 pm/mu epsilon was obtained in a measurement range of 0-10m epsilon. Temperature sensitivity was measured as similar to 21.7 pm/degrees C, significantly lower than that of the conventional PMF. (C) 2012 The Japan Society of Applied Physics
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页数:3
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