Fiber optic amplifier
文献类型：专利
| 作者 | SHAW, HERBERT JOHN; DIGONNET, MICHEL J.F.; LACY, ROBERT A. |
| 发表日期 | 1985-04-10 |
| 专利号 | EP0136871A2 |
| 著作权人 | THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY |
| 国家 | 欧洲专利局 |
| 文献子类 | 发明申请 |
| 其他题名 | Fiber optic amplifier |
| 英文摘要 | @ A pair of small diameter optical fibers (12, 14) are arranged in a side-by-side configuration, the first fiber (12) providing a passive guide for pump light, and the second fiber (14) formed of a material, such as Nd:YAG which has amplifying properties at the signal frequency. The signal to be amplified propagates through the second fiber (14) resulting in amplification of the signal. The first fiber (12) is pumped from one or both ends, utilizing a cone shaped rod (50) which is optically coupled thereto. A plurality of pump light sources (60) are mounted on the end face (58) of the rod (50) to introduce collimated pump light into the large end (52) of the cone shaped rod (50). Total internal reflections on the cone walls compress the pump light to a small, fiber-size diameter end (54) for propagation through the pump fiber (12) and absorption by the active fiber (14). The pump light sources (60) are offset from the axis (72) of the rod (50) to excite high order modes in the pump fiber (12) to enhance absorption by the active fiber (14). The pump light sources (60) preferably comprise high power laser diodes (64) and collimating microlenses (62). By utilizing the cone-shaped rod (50) to couple light from the high power laser diodes (64) to the pump fiber (12), high pump power densities can be achieved, yielding increased amplification. |
| 公开日期 | 1985-04-10 |
| 申请日期 | 1984-09-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/71888]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY |
| 推荐引用方式 GB/T 7714 | SHAW, HERBERT JOHN,DIGONNET, MICHEL J.F.,LACY, ROBERT A.. Fiber optic amplifier. EP0136871A2. 1985-04-10. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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