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基于低双折射光子晶体光纤Sagnac干涉仪的超低温度系数扭曲传感器
引用本文:祖鹏,向望华,金永兴.基于低双折射光子晶体光纤Sagnac干涉仪的超低温度系数扭曲传感器[J].光子学报,2011(9):1433-1437.
作者姓名:祖鹏  向望华  金永兴
作者单位:天津大学精密仪器与光电子工程学院;光电信息技术科学教育部重点实验室;School of Chemical and Biomedical Engineering Nanyang Technological University;
摘    要:研究了低双折射光子晶体光纤中由光纤扭曲造成的圆双折射效应,并应用Sagnac干涉仪结构设计了扭曲传感器.在Sagnac环中的光子晶体光纤上施加机械压力引入初始线双折射并产生正弦干涉光谱,再扭曲光纤产生圆双折射使干涉光谱随扭曲角度移动.光谱峰值波长随扭曲角度变化符合Sinc函数关系,理论分析与实验相符.传感器灵敏度为1....

关 键 词:光子晶体光纤传感器  扭曲传感器  低双折射光纤  Sagnac干涉仪  双折射

Fabrication of Temperature-insensitive Twist Sensor Using Low Birefringent Photonic Crystal Fiber Based Sagnac Interferometer
ZU Peng,XIANG Wang-hua,JIN Yong-xing,China.Fabrication of Temperature-insensitive Twist Sensor Using Low Birefringent Photonic Crystal Fiber Based Sagnac Interferometer[J].Acta Photonica Sinica,2011(9):1433-1437.
Authors:ZU Peng    XIANG Wang-hua  JIN Yong-xing  China
Institution:ZU Peng1,2,XIANG Wang-hua1,JIN Yong-xing3(1 College of Precision Instrument and Opto-electronics Engineering,Tianjin University,Tianjin 300072,China)(2 Key Laboratory of Opto-Electronics Information and Technical Science(Ministry of Education),China)(3 School of Chemical and Biomedical Engineering,Nanyang Technological University,Singapore,637598)
Abstract:The circular birefringence effect in the low birefringent photonic crystal fiber caused by fiber twist is investigated,which is applied in the Sagnac interferometer structure to realize a twist sensor.The mechanical force is applied on the photonic crystal fiber in the Sagnac loop to introduce initial linear birefringence and to generate a sinusoidal interference spectrum.Then,the dip wavelength of the spectrum shifts due to extra circular birefringence caused by the fiber twist.The relationship between the...
Keywords:Photonic crystal fiber sensor  Twist sensor  Low birefringence fiber  Sagnac interferometer  Birefringence  
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