Variable-gain gain-clamped optical amplifiers
文献类型：专利
| 作者 | WALTER, CRAIG, MICHIE; ANTHONY, EDWARD, KELLY; ANDREW, MICHAEL, TOMLINSON |
| 发表日期 | 2004-07-07 |
| 专利号 | GB2396956A |
| 著作权人 | AMPHOTONIX LIMITED |
| 国家 | 英国 |
| 文献子类 | 发明申请 |
| 其他题名 | Variable-gain gain-clamped optical amplifiers |
| 英文摘要 | An optical amplifier comprising a signal semiconductor optical amplifier (SOA) (1) and a control SOA (2) in an optical circuit comprising a signal path (4) passing through the signal SOA (1) and a laser cavity containing both the signal SOA (1) and the control SOA (2). The control SOA (2) may be arranged outside the laser cavity so that it does not amplify a signal in the signal path (4). Alternatively, the control SOA (2) is arranged in the signal path (4), but has insignificant gain in the predetermined signal band (3) so that it does not amplify a signal passing along the signal path (4). The laser cavity clamps the total gain of the signal SOA (1) and the control SOA (2). In use, the bias current supplied to the control SOA (2) is varied to control the clamped-gain of the signal SOA (1).; Therefore the gain of a signal passing along the signal path (4) is clamped to a level which may be varied by control of the control SOA (2). In an alternative type of embodiment, a similar type of control is achieved in a structure integrated in a single semiconductor chip. In particular a waveguide (56) extends along a signal active layer (52) and a laser cavity arranged perpendicularly to the layered structure of the semiconductor chip contains both the signal active layer (52) and a control active layer (59) which corresponds to the control SOA (2). |
| 公开日期 | 2004-07-07 |
| 申请日期 | 2002-09-05 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/66107]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | AMPHOTONIX LIMITED |
| 推荐引用方式 GB/T 7714 | WALTER, CRAIG, MICHIE,ANTHONY, EDWARD, KELLY,ANDREW, MICHAEL, TOMLINSON. Variable-gain gain-clamped optical amplifiers. GB2396956A. 2004-07-07. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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