Lateral superradiance suppressing diode laser bar
文献类型:专利
作者 | SCIFRES, DONALD R.; KUNG, HSING; CROSS, PETER; BURNHAM, ROBERT D.; STREIFER, WILLIAM |
发表日期 | 1989-02-07 |
专利号 | US4803691 |
著作权人 | SPECTRA DIODE LABORATORIES, INC. |
国家 | 美国 |
文献子类 | 授权发明 |
其他题名 | Lateral superradiance suppressing diode laser bar |
英文摘要 | A diode laser bar producing a linear array of laser beams without lateral superradiance. The laser bar has a double-heterostructure or quantum well structure. Etched channels in the substrate create lateral corrugations in the subsequently deposited layers including the active region. The corrugations alternate between offset groove and plateau regions in the lateral direction but are straight in the longitudinal light propagating direction. Any laterally propagating light is interrupted at steps, between groove and plateau regions, by deflection, scattering or transmission out of the active region. Interruption may also be achieved with a plurality of parallel etched grooves extending in the longitudinal direction. The grooves which cut through the active region present a semiconductor-air interface for reflection and/or scattering of laterally propagating light out of the active region. Proton bombarded regions may be provided above the step regions in the top layers to channel current and prevent optical burnout of the step regions. A small percentage of laser light may be allowed to laterally propagate into adjacent active regions to promote phase locking across the laser bar. |
公开日期 | 1989-02-07 |
申请日期 | 1987-08-28 |
状态 | 失效 |
源URL | [http://ir.opt.ac.cn/handle/181661/46286] ![]() |
专题 | 半导体激光器专利数据库 |
作者单位 | SPECTRA DIODE LABORATORIES, INC. |
推荐引用方式 GB/T 7714 | SCIFRES, DONALD R.,KUNG, HSING,CROSS, PETER,et al. Lateral superradiance suppressing diode laser bar. US4803691. 1989-02-07. |
入库方式: OAI收割
来源:西安光学精密机械研究所
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