| 用于光纤电流传感器的BGO晶体磁光特性研究 |
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| 引用本文： | 王美蓉,周王民,张鹏,赵建林,张浩. 用于光纤电流传感器的BGO晶体磁光特性研究[J]. 光子学报, 2006, 35(1): 100-104 |
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| 作者姓名： | 王美蓉 周王民 张鹏 赵建林 张浩 |
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| 作者单位： | 西北工业大学理学院光信息科学与技术研究所,西安,710072;西北工业大学理学院光信息科学与技术研究所,西安,710072;西北工业大学理学院光信息科学与技术研究所,西安,710072;西北工业大学理学院光信息科学与技术研究所,西安,710072;西北工业大学理学院光信息科学与技术研究所,西安,710072 |
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| 基金项目： | 西北工业大学校科研和教改项目 |
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| 摘 要： | 在理论分析Bi4Ge3O12（BGO）晶体磁光特性的基础上，利用倍频法测量了不同工作波长下BGO晶体的费尔德常量，获得了与理论相符的实验结果.同时根据BGO晶体费尔德常量随波长的变化关系曲线，通过对该晶体吸收系数的测量，得出了其磁光优值曲线.进而将BGO晶体的磁光特性与光纤电流传感器常用的几种磁光材料作了对比，结果表明BGO晶体适合用于光纤电流传感器.
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| 关 键 词： | Bi4Ge3O12晶体 费尔德常量 磁光优值 光纤电流传感器 |
| 收稿时间： | 2005-01-04 |
| 修稿时间： | 2005-01-04 |
Investigations of Magneto-optical Properties of BGO Crystal Utilized for Optical Fiber Current Sensor |
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| Wang Meirong,Zhou Wangmin,Zhang Peng,Zhao Jianlin,Zhang Hao. Investigations of Magneto-optical Properties of BGO Crystal Utilized for Optical Fiber Current Sensor[J]. Acta Photonica Sinica, 2006, 35(1): 100-104 |
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| Authors: | Wang Meirong Zhou Wangmin Zhang Peng Zhao Jianlin Zhang Hao |
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| Affiliation: | Institute of Optical Information Science and Technology, School of Science, Northwestern Polytechnical University, Xi′an 710072 |
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| Abstract: | Based on the theoretical analyses of the magneto-optical properties of a Bi_4Ge_3O_ 12 (BGO) crystal,the Verdet constants of a BGO crystal at different wavelengths are measured employing the double frequency method.And the experimental results agree with the theoretical value.Combine the measured absorption coefficients with the relations between the Verdet constant and the light wavelengths,the magneto-optical figure of merit of the BGO crystal is presented. Additionally,the magneto-optical properties of a BGO crystal are compared with that of some magneto-optical materials usually used for optical fiber current sensor.The results show that BGO crystal is more suitable for fabricating optical fiber current sensors. |
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| Keywords: | Bi_4Ge_3O_ 12 crystal Verdet constant Figure of merit Optical fiber current sensor |
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