Temperature-Insensitive Torsion Sensor With Enhanced Sensitivity by Use of a Highly Birefringent Photonic Crystal Fiber
Temperature-Insensitive Torsion Sensor With Enhanced Sensitivity by Use of a Highly Birefringent Photonic Crystal Fiber
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DOI：
10.1109/lpt.2010.2068043
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发表时间：
2010-10-15
影响因子：
2.6
通讯作者：
Chung, Youngjoo
中科院分区：
文献类型：
--
作者：
Kim, Hyun-Min;Kim, Tae-Hun;Chung, Youngjoo
本文报道了一种基于高双折射光子晶体光纤（HB-PCF）的Sagnac干涉仪。为了提高扭转灵敏度，我们通过增大一排空气孔的尺寸，在HB-PCF的横截面上引入了各向异性的微结构。这可导致10（-3）量级的高双折射以及对弯曲和温度的低灵敏度。扭转灵敏度被测量为高，与0.06nm/度相似。
We report on enhanced torsion sensitivity by using a highly birefringent photonic crystal fiber (HB-PCF)-based Sagnac interferometer. In order to increase the torsion sensitivity, we introduced an anisotropic microstructure into the cross section of an HB-PCF by enlarging the size of air holes of one row. This can result in a high birefringence of the order of 10(-3) and low sensitivities to bending and temperature. The torsion sensitivity was measured to be high with similar to 0.06 nm/degrees.