| 消偏光纤陀螺的理论和实验研究 |
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| 引用本文： | 牟旭东,周柯江.消偏光纤陀螺的理论和实验研究[J].光子学报,2000,29(9):810-813. |
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| 作者姓名： | 牟旭东 周柯江 |
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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 |
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| 摘 要： | 本文首次在理论上导出消偏型光纤陀螺的零漂和标度因子表达式,并得出以下两个结论:1)在使用约 40 dB偏振器时,导致陀螺漂移的主要因素是强度误差而并不是振幅误差;2)由光学标度因子与各种器件参量关系表明开环解调时陀螺的线性误差较大.试验样机证明了以上结果,并找出减小漂移的方法.
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| 关 键 词： | 光纤陀螺 零漂 比例因子误差 |
| 收稿时间： | 2000-01-19 |
| 修稿时间： | 2000-01-19 |
THEORETICAL AND EXPERIMENTAL RESEARCH ON THE DEPOLARIZED FIBER OPTICAL GYROS |
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| Mou Xudong,Zhou Kejiang.THEORETICAL AND EXPERIMENTAL RESEARCH ON THE DEPOLARIZED FIBER OPTICAL GYROS[J].Acta Photonica Sinica,2000,29(9):810-813. |
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| Authors: | Mou Xudong Zhou Kejiang |
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| Institution: | National Key Lab of Modern Optical Instrument, Zhejiang University, Hangzhou Zhejiang 310027 |
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| Abstract: | An analysis of the bias drift and the scale factor in the depolarized fiber optical gyros is presented in this paper.It indicates that:1)when a 40dB polarizer is used,the major reason for the bias drift of gyros is the intensity error but not the amplitude error.2)In open loop demodulation,the scale factor of the depolazed fiber gyros is larger than that of the PM fiber gyros.A method to reduce the bias drift is proved in the experiment. |
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| Keywords: | Fiber optical gyros Bias drift Scale factor error |
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