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	Edge-emitting laser having small vertical emitting angle
	PAN, CHIEN HUNG; WU, CHENG-JU
	2018-07-03
著作权人	TRUELIGHT CORPORATION
专利号	US10014663
国家	美国
文献子类	授权发明
其他题名	Edge-emitting laser having small vertical emitting angle
英文摘要	An edge-emitting laser having a small vertical emitting angle includes an upper cladding layer, a lower cladding layer and an active region layer sandwiched between the upper and lower cladding layers. By embedding a passive waveguide layer within the lower cladding layer, an extended lower cladding layer is formed between the passive waveguide layer and the active region layer. In addition, the refractive index (referred as n-value) of the passive waveguide layer is larger than the n-value of the extended lower cladding layer. The passive waveguide layer with a larger n-value would guide the light field to extend downward. The extended lower cladding layer can separate the passive waveguide layer and the active region layer and thus expand the near-field distribution of laser light field in the resonant cavity, so as to obtain a smaller vertical emitting angle in the far-field laser light field.
公开日期	2018-07-03
申请日期	2017-06-16
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/47849]
专题	半导体激光器专利数据库
作者单位	TRUELIGHT CORPORATION
推荐引用方式 GB/T 7714	PAN, CHIEN HUNG,WU, CHENG-JU. Edge-emitting laser having small vertical emitting angle. US10014663. 2018-07-03.

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