Xi'an Institute of Optics and Precision Mechanics,CAS
Ring laser gyro device | |
其他题名 | Ring laser gyro device |
NAKAMURA SHIGERU; HOJO TAKESHI | |
1992-05-27 | |
专利权人 | 株式会社トキメック |
公开日期 | 1992-05-27 |
授权国家 | 日本 |
专利类型 | 发明申请 |
摘要 | PURPOSE:To scarcely generate a lock-in phenomenon and to reduce in size an entire device by composing a substantially circular optical waveguide of a light emitting element and an optical resonator, cutting out part of the waveguide, and inserting a Faraday element. CONSTITUTION:An optical resonator of an output light of a light emitting element 19 is composed of a substantially circular optical waveguide 14 provided on a gyro board 12, and a light turning in one direction and a light turning in the other direction exist in mixture in the resonator. A beat signal is obtained through a directional coupler 16, a Y-type branched coupler 17 and a photodetector 18A, and the rotating angular speed of the resonator can be detected by the frequency of the signal. Part of the waveguide 14 is partly cut out, and a Faraday element 20 is inserted to provide a desired phase difference between the light turning in one direction and the light turning in the other direction in the resonator. Since an optical fiber is not used, a large scale lock-in phenomenon caused by the internal scattering of the fiber does not occur, and the waveguide is reduced in size, and hence the entire device can be reduced in size. |
其他摘要 | 目的:通过组成发光元件和光学谐振器的基本上圆形的光波导,切掉部分波导,并插入法拉第元件,几乎不产生锁定现象并减小整个装置的尺寸。组成:发光元件19的输出光的光学谐振器由设置在陀螺仪板12上的基本上圆形的光波导14组成,并且在一个方向上转动的光和在另一个方向上转动的光混合在一起。谐振器。通过定向耦合器16,Y型分支耦合器17和光电检测器18A获得差拍信号,并且可以通过信号的频率检测谐振器的旋转角速度。部分地切出波导14的一部分,并插入法拉第元件20,以在一个方向上转动的光和在谐振器中沿另一个方向转动的光之间提供所需的相位差。由于不使用光纤,因此不会发生由光纤的内部散射引起的大规模锁定现象,并且波导尺寸减小,因此可以减小整个装置的尺寸。 |
申请日期 | 1990-10-18 |
专利号 | JP1992154179A |
专利状态 | 失效 |
申请号 | JP1990279694 |
公开(公告)号 | JP1992154179A |
IPC 分类号 | G01C19/66 | G01C19/68 | H01S3/08 | H01S3/083 | H01S5/00 | H01S3/18 |
专利代理人 | - |
代理机构 | - |
文献类型 | 专利 |
条目标识符 | http://ir.opt.ac.cn/handle/181661/88410 |
专题 | 半导体激光器专利数据库 |
作者单位 | 株式会社トキメック |
推荐引用方式 GB/T 7714 | NAKAMURA SHIGERU,HOJO TAKESHI. Ring laser gyro device. JP1992154179A[P]. 1992-05-27. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
JP2835468B2.PDF(68KB) | 专利 | 开放获取 | CC BY-NC-SA | 请求全文 |
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