| 全光纤分布式传感定位系统偏振稳定性 |
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| 引用本文： | 张柳,肖倩,贾波,董翔,尹崇博. 全光纤分布式传感定位系统偏振稳定性[J]. 复旦学报(自然科学版), 2008, 47(3) |
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| 作者姓名： | 张柳 肖倩 贾波 董翔 尹崇博 |
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| 作者单位： | 复旦大学材料科学系,上海,200433 |
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| 基金项目： | 上海市经济与贸易发展委员会全光纤管道监控系统研发基金 |
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| 摘 要： | 从理论上分析了全光纤分布式传感定位系统的偏振变化会影响到干涉的调制深度和初始相位,针对实际应用,设计了一种简单的全光纤分布式定位系统的改良结构,通过法拉第旋转镜的使用,提高系统对感应段光纤偏振变化的不敏感性,提高了系统的实用性.通过实验验证了改良结构的稳定效果.
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| 关 键 词： | 光纤定位 偏振态控制 法拉第旋转镜 稳定性 |
Research on Stability of Polarization in an All-fiber Position Determination System |
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| ZHANG Liu,XIAO Qian,JIA Bo,DONG Xiang,YIN Chong-bo. Research on Stability of Polarization in an All-fiber Position Determination System[J]. Journal of Fudan University(Natural Science), 2008, 47(3) |
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| Authors: | ZHANG Liu XIAO Qian JIA Bo DONG Xiang YIN Chong-bo |
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| Abstract: | Based on the theoretical analysis,experiments prove that the change of polarization in an all-fiber position determination system will affect the modulation depth and the initial phase of the interference directly.A new improved all-fiber position determination system is designed.By using a Faraday rotation mirror,the system is insensitive to the change of the polarization in the sensing part of the optic fiber,and the practicability of the system is increased. |
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| Keywords: | all-fiber position determination polarization control Faraday mirror stability |
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