In-line fiber optic memory and method of using same
文献类型：专利
| 作者 | DESURVIRE, EMMANUEL; DIGONNET, MICHEL J. F.; SHAW, H. J. |
| 发表日期 | 1989-03-28 |
| 专利号 | US4815804 |
| 著作权人 | THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | In-line fiber optic memory and method of using same |
| 英文摘要 | A fiber optic recirculating memory comprises a splice-free length of optical fiber which forms a loop that is optically closed by means of a fiber optic coupler. The coupler couples an optical signal input pulse to the loop for circulation therein, and outputs a portion of the signal pulse on each circulation to provide a series of output pulses. A pump source is included to pump the fiber loop with a pump signal having sufficient intensity to cause stimulated Raman scattering in the fiber loop, and thereby cause amplification of the circulating signal pulse. The fiber characteristics, coupler characteristics, and pump power are selected to yield a Raman gain which compensates for the total round-trip losses in the fiber loop, so as to provide an output pulse train of constant amplitude pulses. The invention may be implemented utilizing either a standard coupler or a multiplexing coupler. The multiplexing coupler advantageously permits independent selection of the coupling ratios for the pump signal and signal pulse, thereby allowing these coupling ratios to be selected for minimum loop loss and maximum pumping efficiency. |
| 公开日期 | 1989-03-28 |
| 申请日期 | 1987-11-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/35876]  |
| 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 | DESURVIRE, EMMANUEL,DIGONNET, MICHEL J. F.,SHAW, H. J.. In-line fiber optic memory and method of using same. US4815804. 1989-03-28. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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