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	Semiconductor laser with integrated optical elements
	SCIFRES, DONALD R.; STREIFER, WILLIAM
	1989-03-21
著作权人	JDS UNIPHASE CORPORATION
专利号	US4815084
国家	美国
文献子类	授权发明
其他题名	Semiconductor laser with integrated optical elements
英文摘要	Lasers and laser arrays having various optical elements, such as lenses, apertures, prisms, etalons and phase plates, integrated within the resonant optical cavity of the laser. The optical elements are created by introducing a lateral geometric contour in boundaries of refractive index changes thereby causing a change in shape of phase fronts of lightwaves propagating in the laser cavity in a manner analogous to optical elements. Boundaries may be defined between an active region and transparent window regions or may be formed in other layers with which lightwaves interact, such as the layers bounding the active region. Curved boundaries produce convergent or divergent lenses. Absorbing regions may bound window regions to produce apertures for lateral mode control. A periodic step shaped boundary can be used to shift the phase of lightwaves propagating in some laser array waveguides relative to lightwaves in others of the waveguides in order to cause beam emission of a desired supermode. Fresnel lenses, prisms and etalons can also be integrated within the laser.
公开日期	1989-03-21
申请日期	1987-05-20
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/44553]
专题	半导体激光器专利数据库
作者单位	JDS UNIPHASE CORPORATION
推荐引用方式 GB/T 7714	SCIFRES, DONALD R.,STREIFER, WILLIAM. Semiconductor laser with integrated optical elements. US4815084. 1989-03-21.

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