| 基于部分保偏器件的干涉型光纤传感器 |
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| 引用本文： | 钱楷,徐长春,葛强,吴许强,俞本立.基于部分保偏器件的干涉型光纤传感器[J].量子电子学报,2008,25(1):114-118. |
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| 作者姓名： | 钱楷 徐长春 葛强 吴许强 俞本立 |
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| 作者单位： | 安徽大学光电信息获取与控制教育部重点实验室,安徽,合肥,230039 |
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| 基金项目： | 安徽省优秀青年科技基金 |
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| 摘 要： | 在单模光纤构成的干涉型光纤传感器中,存在偏振衰落问题,将导致干涉效率降低.而为了消偏振衰落采用全保偏器件的光纤传感器成本过于高昂,影响其实用性.以马赫.泽德干涉仪为基础,用反馈信号控制偏振控制器加起偏器的结构消除了偏振衰落,构造了基于部分保偏器件的干涉型光纤传感器.实验得到系统输出信噪比稳定在60 dB左右.
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| 关 键 词： | 纤维与波导光学 光纤传感器 消偏振衰落 偏振控制器 起偏器 |
| 文章编号： | 1007-5461（2008）01-0114-05 |
| 收稿时间： | 2007-02-08 |
| 修稿时间： | 2007-04-12 |
Interferometric fiber-optic sensor based on partial polarization maintaining apparatus |
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| QIAN Kai,XU Chang-chun,GE Qiang,WU Xu-qiang,YU Ben-li.Interferometric fiber-optic sensor based on partial polarization maintaining apparatus[J].Chinese Journal of Quantum Electronics,2008,25(1):114-118. |
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| Authors: | QIAN Kai XU Chang-chun GE Qiang WU Xu-qiang YU Ben-li |
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| Affiliation: | QIAN Kai,XU Chang-chun,GE Qiang,WU Xu-qiang,YU Ben-li ( Key Laboratory of Opto-electronic Information Acquisition , Manipulation,Ministry of Education,Anhui University,Hefei 230039,China ) |
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| Abstract: | The polarization-induced fading in fiber-optic sensor causes the decrease of interference efficiency, and the high cost in the use of polarization-maintaining fiber affects the practicability of fiber-optic sensor. Based on the Mach-Zehnder interferometer, an optic-fiber sensor configuration using partial polarization maintaining apparatus and feeding the interference signal back to the polarization controller to eliminate the polarization-induced fading is presented. And the system SNR is about 60 dB. |
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| Keywords: | fiber and waveguide optics fiber-optic sensors depolarization-induced fading polarization controller polarizer |
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