| A Novel Method for Measuring the Photo－Induced Birefringence of Photosensitive Fibres Based on a Fibre Loop ＊ |
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| 作者姓名： | 张东生 姜莉 刘波 张伟刚 开桂云 董孝义 |
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| 作者单位： | InstituteofModernOptics,NankaiUniversity,Tianjin300071 |
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| 摘 要： | We report a novel method for measuring photo-induced birefringence of photosensitive fibres based on a fibre loop.The method is simple and is only slightly affected by the surroundings. The experimental results show that thephoto-inducing normalized birefringence of the photosensitive fibre is multi-decaying-exponentially proportionalto the exposure and it can attain 10^-5.
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| 关 键 词： | 光致双折射 感光性纤维 测量方法 纤维环 光纤光栅 光纤通信 光纤传感系统 锗掺杂纤维 |
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