Fiber laser sensor
文献类型：专利
| 作者 | HICKS, JOHN W. |
| 发表日期 | 1988-03-15 |
| 专利号 | US4730886 |
| 著作权人 | HICKS ; JOHN W. |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Fiber laser sensor |
| 英文摘要 | A fiber laser sensor is comprised of two fiber lasers which are each optically coupled to a third fiber so that energy is exchanged between each of the laser fibers and the third fiber. The coupling is accomplished by arranging the laser fibers parallel to and on either side of a third fiber and properly spacing the three fibers to produce optical coupling along the length of the fibers. The central fiber ends are non-reflective so that light generated by one of the lasers and coupled to the central fiber is lost except for a small fraction of the energy transferred to the other laser. Accordingly, the structure operates with the least loss when the two lasers oscillate at a common frequency but 180 DEG out-of-phase. The resonant cavities of the two fiber lasers are made non-identical by making the path length one cavity slightly longer than the other to produce Vernier tuning of the laser resonant frequency orders relative to each other with only one common resonant frequency. The device can be used as a sensor because the common laser output frequency is sensitive to changes in the optical path length of either or both of the laser cavities. |
| 公开日期 | 1988-03-15 |
| 申请日期 | 1985-08-06 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/35830]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | 1.JOHN W. 2.HICKS |
| 推荐引用方式 GB/T 7714 | HICKS, JOHN W.. Fiber laser sensor. US4730886. 1988-03-15. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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