Dual beam double cavity heterostructure laser with branching output waveguides
文献类型：专利
| 作者 | LOGAN, RALPH A.; MERZ, JAMES L. |
| 发表日期 | 1979-06-26 |
| 专利号 | US4159452 |
| 著作权人 | BELL TELEPHONE LABORATORIES, INCORPORATED |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Dual beam double cavity heterostructure laser with branching output waveguides |
| 英文摘要 | A dual beam laser incorporates a tapered layer within the optical cavity of a GaAs-AlGaAs double heterostructure laser. Dual output waveguides are therefore provided at one of the mirrors. By suitable variations of layer thickness and/or composition, the device operates either as a tapered power divider (TPD), branching the incident power of a single mode into the two output arms of the device, or as a tapered mode splitter (TMS), diverting different transverse modes into different arms. Because the different modes of the TMS have different thresholds, the laser can be pulsed with current pulses of different amplitude to control at which of the waveguides an output appears. The TPD, on the other hand, has coupled cavities which tend to suppress all but one dominant longitudinal mode. Also described is an integrated optical circuit embodiment of the TPD in which the resonator is formed by etched mirrors. |
| 公开日期 | 1979-06-26 |
| 申请日期 | 1978-01-13 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/44387]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | BELL TELEPHONE LABORATORIES, INCORPORATED |
| 推荐引用方式 GB/T 7714 | LOGAN, RALPH A.,MERZ, JAMES L.. Dual beam double cavity heterostructure laser with branching output waveguides. US4159452. 1979-06-26. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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