集積型光カップラ
文献类型：专利
| 作者 | 半田 祐一 |
| 发表日期 | 1999-01-14 |
| 专利号 | JP2873857B2 |
| 著作权人 | キヤノン株式会社 |
| 国家 | 日本 |
| 文献子类 | 授权发明 |
| 其他题名 | 集積型光カップラ |
| 英文摘要 | PURPOSE:To prevent the main waveguide layer such as an active layer from being damaged by a slit coupler formed in a layer direction to have a required branching ratio by arranging the center of the layer direction distribution of optical waves propagated through an optical waveguide layer on a position shifted upward or downward from a main waveguide layer. CONSTITUTION:An optical wave 12 made incident from the external is branched/ coupled by an integration coupler, optically amplified, multiplexed, and outputted as an optical wave 13. The optical amplification is executed by impressing a forward bias between both electrodes 6, 7. Since the position of the active layer 3 in the optical waveguide layer is shifted from the center of the electromagnetic distribution of guided light in the downward direction, the layer direction leading position of a slit coupler can be set up on a position upper than the layer 3 and the cutting of the slit 9 up to the layer 3 is made unnecessary. As a means for shifting the center, the refractive indexes of AlGaAs clad layers 2, 4 formed on both the layers of double hereto structure are made asymmetrical from that of the layer 3. Consequently, the integrated coupler having excellent durability as a branching coupler can be attained. |
| 公开日期 | 1999-03-24 |
| 申请日期 | 1990-04-05 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/44464]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | キヤノン株式会社 |
| 推荐引用方式 GB/T 7714 | 半田 祐一. 集積型光カップラ. JP2873857B2. 1999-01-14. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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