System and method for actively aligning mirrors in an optical switch
文献类型：专利
| 作者 | LEMOFF, BRIAN E.; HOKE, CHARLES D.; SCHROEDER, DALE W. |
| 发表日期 | 2003-03-25 |
| 专利号 | US6539142 |
| 著作权人 | AGILENT TECHNOLOGIES, INC. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | System and method for actively aligning mirrors in an optical switch |
| 英文摘要 | In a 3D MEMS optical switch titling mirrors are actively aligned to minimize losses in optical power. In one embodiment the optical signals in the output fibers are tapped and detected and the sensed outputs are used by a control circuit with a feedback loop that adjusts the alignment signals sent to the MEMS actuators. In a second embodiment, an emitter which is either a single LED or laser diode is optically coupled to the output fibers for injecting alignment beams back into the fibers. The alignment beams have a frequency bandwidth outside that of the information beams. The alignment beams are detected at the input fibers via directional optical couplers and the sensed outputs are used by a control circuit with a feedback loop to adjust the alignment signals. The alignment signals are dithered and their phase and amplitude shifts are used to generate the appropriate feedback signals. |
| 公开日期 | 2003-03-25 |
| 申请日期 | 2001-06-01 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/36759]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | AGILENT TECHNOLOGIES, INC. |
| 推荐引用方式 GB/T 7714 | LEMOFF, BRIAN E.,HOKE, CHARLES D.,SCHROEDER, DALE W.. System and method for actively aligning mirrors in an optical switch. US6539142. 2003-03-25. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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