Coupler for semiconductor laser and optical fiber
文献类型：专利
| 作者 | MATSUI TERUJI |
| 发表日期 | 1982-05-27 |
| 专利号 | JP1982085279A |
| 著作权人 | MITSUBISHI ELECTRIC CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Coupler for semiconductor laser and optical fiber |
| 英文摘要 | PURPOSE:To smooth a speckle in the optical fiber, and to decrease speckle noises by propagating an elastic surface wave onto a board having one fourth wavelength by frequency higher than the modulation frequency of signals through crossing digital electrodes. CONSTITUTION:A lens 2 for coupling is mounted between the semiconductor laser 1 and the optical fiber 5. A polarized light board 3 is arranged so as to pass the rays of a field component parallel with a joining surface of the laser The board 4 having one fourth wavelength, which consists of a transparent piezo-electric crystal, has the crossing digital electrodes 4a on either of before and behind surfaces, and is disposed so that an optical axis forms an angle of 45 deg. to a joining surface. A high-frequency oscillation circuit 6 applies currents to the electrodes 4a so that the elastic surface wave is formed in the wavelength board 4. Accordingly, when the rays of the laser 1 are transmitted to a section where the elastic surface wave propagates of the wavelength board 4, incident conditions such as phase at an incident surface of the fiber 5 is changed periodically, and a position and a form of the speckle are altered. |
| 公开日期 | 1982-05-27 |
| 申请日期 | 1980-11-17 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/62814]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | MITSUBISHI ELECTRIC CORP |
| 推荐引用方式 GB/T 7714 | MATSUI TERUJI. Coupler for semiconductor laser and optical fiber. JP1982085279A. 1982-05-27. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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