Optical amplifying element
文献类型：专利
| 作者 | MAGARI KATSUAKI; NOGUCHI ETSUO; YASAKA HIROSHI |
| 发表日期 | 1990-06-29 |
| 专利号 | JP1990170143A |
| 著作权人 | NIPPON TELEGR & TELEPH CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical amplifying element |
| 英文摘要 | PURPOSE:To prevent light from returning an active part and to eliminate axis misalignment when fibers are coupled by increasing the width of an active layer in a taper shape nearby one or both of two end surfaces and forming reflection preventive films on both end surfaces. CONSTITUTION:A light guide layer 2, the active layer 3, a clad layer 4 and an electrode layer 5 are grown on a substrate The element is formed in the taper shape in an input-side taper waveguide area 1 Then, the respective layers 2 - 5 are etched until they reach the substrate 1 to form a laminate body in a reverse mesa shape. Then a p type InP layer 6 and an n type InP layer 7 are grown by current narrowing-down embedding as 2nd growth at the part removed by the etching. On the entire top surface, an electrode 8 is formed, an n type ohmic electrode 12 is formed, and then the reflection preventive multi-layered films 13 and 14 are formed. Consequently, the films 13 and 14 are vapor-deposited on condition that the reflection factor of the end surfaces is 0.5% to obtain about 20dB element gain. |
| 公开日期 | 1990-06-29 |
| 申请日期 | 1988-12-23 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/67464]  |
| 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 | MAGARI KATSUAKI,NOGUCHI ETSUO,YASAKA HIROSHI. Optical amplifying element. JP1990170143A. 1990-06-29. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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