Optical signal multiplexing/branching device
文献类型：专利
| 作者 | KUROKAWA TAKASHI; KAWAGUCHI HITOSHI |
| 发表日期 | 1989-05-26 |
| 专利号 | JP1989135087A |
| 著作权人 | NIPPON TELEGR & TELEPH CORP |
| 国家 | 日本 |
| 文献子类 | 发明申请 |
| 其他题名 | Optical signal multiplexing/branching device |
| 英文摘要 | PURPOSE:To output a multiplexed optical signal for an optical input signal being asynchronous and having small duty ratio between channels by optically connecting in cascade a plurality of bistable semiconductor lasers at the respective channels, applying independent currents to the electrodes, and coupling radiated lights from the channels to one optical fiber. CONSTITUTION:When the timing of a control signal is set to a state that the pulse widths of I'1-I'4 are divided to 1/8 of one frame period and displaced by 1/4 period and the lights radiated from BLD 20 of the respective channels are coupled by a coupler 32 to an optical fiber FO, multiplexed optical signal is propagated in the fiber FO. That is, since a memory state is reset at each frame period by the currents I1-I4 and the input state of the optical signal is stored for one period at each channel, the multiplex is conducted by displacing the reading timing with the currents I'1-I'4, the optical input signals may be asynchronous, and the pulse width is not necessarily narrowed in advance. |
| 公开日期 | 1989-05-26 |
| 申请日期 | 1987-11-20 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/63119]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | NIPPON TELEGR & TELEPH CORP |
| 推荐引用方式 GB/T 7714 | KUROKAWA TAKASHI,KAWAGUCHI HITOSHI. Optical signal multiplexing/branching device. JP1989135087A. 1989-05-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。