Unidirectional optical amplifier
文献类型：专利
| 作者 | KUWABARA HIDEO |
| 发表日期 | 1984-03-26 |
| 专利号 | JP1984052205A |
| 著作权人 | FUJITSU KK |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Unidirectional optical amplifier |
| 英文摘要 | PURPOSE:To provide an optical amplifier itself with directivity and to obtain an economical relay by providing a branch in the direction opposite to the light traveling direction of an optical waveguide or forming a wedgelike optical waveguide which has sudden level difference width in the light traveling direction. CONSTITUTION:Branch optical waveguides 3-5 form an Y shape; light traveling from the optical waveguide 3 enters the optical waveguide 4 almost without any loss and light from the optical waveguide 5 enters the optical waveguide 3 while reduced nearly to half at a branch point A when the optical waveguides 3 and 4 have nearly the same optical waveguiding functions. When Y-shaped branches are cascased in three stages, incident light from a light incidence terminal 6 is coupled with an optical waveguide 8 and amplified. Light from a light projection terminal 7, on the other hand, attenuates before reaching the light incidence terminal 6 because of the loss due to the Y branches. Consequently, the optical amplifier itself has directivity and provides economical relay. |
| 公开日期 | 1984-03-26 |
| 申请日期 | 1982-08-23 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/63954]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU KK |
| 推荐引用方式 GB/T 7714 | KUWABARA HIDEO. Unidirectional optical amplifier. JP1984052205A. 1984-03-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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