Coherent light receiver
文献类型：专利
| 作者 | HIRAYAMA YUZO |
| 发表日期 | 1991-09-04 |
| 专利号 | JP1991203268A |
| 著作权人 | TOSHIBA CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Coherent light receiver |
| 英文摘要 | PURPOSE:To align an optical axis by using a simple and easy constitution by a method wherein signal light is input from an edge on the side opposite to a semiconductor laser so as to sandwich a photodetector. CONSTITUTION:A semiinsulating InP layer 18 is formed on a light waveguide layer 15 situated on a secondary diffraction grating 13 so as to bury the side part of an active layer 16 and a clad layer 17; an n-type InP layer 19, an InGaAs light-absorbing layer 20 and a p-type InP clad layer 21 are formed on its surface; a photodetector(PD) is formed on a substrate 1 The right-side edge, i.e., the edge on the side opposite to a laser for local oscillation use so as to sandwich the photodetector, is coated with a reflectionless film 22. Signal light is input through the reflectionless film 22. Thereby, an optical axis can be aligned by using a simple and easy constitution;an integration-type coherent light receiver whose long-term stability and receiving sensitivity are excellent can be realized. |
| 公开日期 | 1991-09-04 |
| 申请日期 | 1989-12-28 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/88702]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | TOSHIBA CORP |
| 推荐引用方式 GB/T 7714 | HIRAYAMA YUZO. Coherent light receiver. JP1991203268A. 1991-09-04. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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