Diode laser array
文献类型：专利
| 作者 | CARLSON, NILS W.; EVANS, GARY A.; KAISER, CHARLIE J. |
| 发表日期 | 1990-12-11 |
| 专利号 | US4976539 |
| 著作权人 | DAVID SARNOFF RESEARCH CENTER, INC., A CORP. OF DELAWARE |
| 国家 | 美国 |
| 文献子类 | 授权发明 |
| 其他题名 | Diode laser array |
| 英文摘要 | A diode laser array comprises a substrate of a semiconductor material having first and second opposed surfaces. On the first surface is a plurality of spaced gain sections and a separate distributed Bragg reflector passive waveguide at each end of each gain section and optically connecting the gain sections. Each gain section includes a cavity therein wherein charge carriers are generated and recombine to generate light which is confined in the cavity. Also, the cavity, which is preferably a quantum well cavity, provides both a high differential gain and potentially large depth of loss modulation. Each waveguide has a wavelength which is preferably formed by an extension of the cavity of the gain sections and a grating. The grating has a period which provides a selective feedback of light into the gain sections to supporting lasing, which allows some of the light to be emitted from the waveguide normal to the surface of the substrate and which allows optical coupling of the gain sections. Also, the grating period provides an operating wavelength which is on the short wavelength side of the gain period of the gain sections required for laser oscillation. An RF pulse is applied so as to maximize the magnitude of the loss modulation and the differential gain in the gain sections. The array is operated by applying a DC bias to all the gain sections at a level just below the threshold of the gain sections to only one of the gain sections which raises the bias in all of the gain sections to a level that causes all of the gain sections to oscillate. Thus, a small bias can turn the array on and off. |
| 公开日期 | 1990-12-11 |
| 申请日期 | 1989-08-29 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/79436]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | DAVID SARNOFF RESEARCH CENTER, INC., A CORP. OF DELAWARE |
| 推荐引用方式 GB/T 7714 | CARLSON, NILS W.,EVANS, GARY A.,KAISER, CHARLIE J.. Diode laser array. US4976539. 1990-12-11. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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