| 消偏光纤陀螺径向磁场问题的理论研究 |
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| 引用本文： | 张登伟,舒晓武,牟旭东,刘承.消偏光纤陀螺径向磁场问题的理论研究[J].传感技术学报,2005,18(4):867-870. |
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| 作者姓名： | 张登伟 舒晓武 牟旭东 刘承 |
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| 作者单位： | 浙江大学现代光学仪器国家重点实验室,杭州,310027;浙江大学现代光学仪器国家重点实验室,杭州,310027;浙江大学现代光学仪器国家重点实验室,杭州,310027;浙江大学现代光学仪器国家重点实验室,杭州,310027 |
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| 摘 要： | 消偏光纤陀螺,由于单模光纤的不理想,外界磁场会对在光纤中转播的偏振光产生作用(Faraday 效应),而产生一个与磁场有关的附加的非互易相位差.基于单色光,对径向磁场作用下的整个陀螺系统进行理论推导、分析,给出仿真结果和实验结果,并提出减小径向磁场作用下的Faraday非互易相位差的方法.
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| 关 键 词： | 消偏光纤陀螺 Faraday非互易相位差 残余线双折射 扭转 Lyot消偏器 |
| 文章编号： | 1005-9490（2005）04-0867-04 |
| 收稿时间： | 2004-12-23 |
| 修稿时间： | 2004年12月23日 |
Theoretical Study on Radial Magnetic Field in Fiber2Optic Depolarized Gyro |
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| Z HA N G Dengwei,S HU X i aow u,MOU X udon g,L IU Che.Theoretical Study on Radial Magnetic Field in Fiber2Optic Depolarized Gyro[J].Journal of Transduction Technology,2005,18(4):867-870. |
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| Authors: | Z HA N G Dengwei S HU X i aow u MOU X udon g L IU Che |
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| Affiliation: | State Key Laboratory of Modern Optical Instrumentation, University, Hangzhou 310027, China |
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| Abstract: | An additive nonreciprocal phase error associated with magnetic field must be generated in Fiberoptic depolarized gyro, which the environment magnetic field has an effect, Faraday effect, on the polarized light that propagates in the imperfect single-mode fiber. Based on monochromatic light, theory derivation and analysis of the whole gyro system that is resulted from radial magnetic field is introduced. The emulation result and the experiment result is given. And the method to reduce the Faraday nonreciprocal phase error resulted from the radical magnetic field is put forward. |
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| Keywords: | fiber-optic depolarized gyro faraday nonreciprocal phase error residuary linear birefringence twist Lyot depolarizer |
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