Integrated type optical amplifier element
文献类型：专利
| 作者 | YOSHINO KAORU; IKEDA MASAHIRO |
| 发表日期 | 1989-07-05 |
| 专利号 | JP1989170084A |
| 著作权人 | NIPPON TELEGR & TELEPH CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Integrated type optical amplifier element |
| 英文摘要 | PURPOSE:To reduce a return light rays reflected from an optical filter section so as to improve a S/N ratio by a method wherein a semiconductor optical waveguide type amplifier and a grating type optical filter are integrated and the grating is provided obliquely toward a direction in which an optical signal advances. CONSTITUTION:A planar optical waveguide 6 is provided in succession along a direction in which an optical signal advances from a core layer 4 of an optical amplifier 1, a grating face 5 is provided to the planar optical waveguide 6, and an optical filter section 2 is provided, where the grating face 5 is arranged so as to enable a grading angle to make an angle of one or more degrees with a direction perpendicular to a direction in which the optical signal advances. By these processes, an S/N ratio is made to decrease much in deterioration by restraining a noise component caused by a naturally released light and a gain saturation can be also restrained. And, as a device of this design can be manufactured through a monolithic processing method, a multi-stage integration is facilitated and the device can be made very small as compared with a device formed of unit components, so that the device is favorable for mounting. |
| 公开日期 | 1989-07-05 |
| 申请日期 | 1987-12-25 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/64003]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON TELEGR & TELEPH CORP |
| 推荐引用方式 GB/T 7714 | YOSHINO KAORU,IKEDA MASAHIRO. Integrated type optical amplifier element. JP1989170084A. 1989-07-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。