Optical amplifier
文献类型：专利
| 作者 | SASAKI KAZUYA; YOSHIZAWA SAKAE; INAGAKI SHINYA; TAKEDA KEIKO |
| 发表日期 | 1993-10-05 |
| 专利号 | CA2023244C |
| 著作权人 | FUJITSU LIMITED |
| 国家 | 加拿大 |
| 文献子类 | 授权发明 |
| 其他题名 | Optical amplifier |
| 英文摘要 | ABSTRACT OF THE DISCLOSURE An optical waveguide having a first cross section is thinned to constitute a thinned portion having a second cross section, as long as a predetermined length. The surface of the thinned portion is contacted with a laser glass member doped with a rare earth element, such as Er. Due to the thinned diameter' the optical fiber is optically coupled with the laser glass mem- ber. A pumping light is input either into the optical waveguide together with a signal light or directly into the laser glass member. Signal light coupled from the thinned portion to the laser glass member is amplified by stimulated emission of the laser glass. The thus amplified signal light is coupled back to the thinned portion so as to propagate along the optical wave- guide. The thinned portion can be as short as several centimeters compared with ten meters to more than one hundred meters for a conventional optical amplifier. In the optical waveguide where the pumping light is directly input to the laser glass member, a complicated multiplexer is not necessary, resulting in a reliable operation of the amplifier. |
| 公开日期 | 1991-02-16 |
| 申请日期 | 1990-08-14 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/71915]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | FUJITSU LIMITED |
| 推荐引用方式 GB/T 7714 | SASAKI KAZUYA,YOSHIZAWA SAKAE,INAGAKI SHINYA,et al. Optical amplifier. CA2023244C. 1993-10-05. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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