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	Substrate-emitting transverse magnetic polarized laser employing a metal/semiconductor distributed feedback grating for symmetric-mode operation
	MAWST, LUKE J.; BOTEZ, DAN; EARLES, THOMAS L.; KIRCH, JEREMY D.; SIGLER, CHRISTOPHER A.
	2015-07-28
著作权人	WISCONSIN ALUMNI RESEARCH FOUNDATION
专利号	US9093821
国家	美国
文献子类	授权发明
其他题名	Substrate-emitting transverse magnetic polarized laser employing a metal/semiconductor distributed feedback grating for symmetric-mode operation
英文摘要	Semiconductor lasers comprise a substrate; an active layer configured to generate transverse magnetic (TM) polarized light under an electrical bias; an upper cladding layer; a lower cladding layer; and a distributed feedback (DFB) grating defined by the interface of a layer of metal and a layer of semiconductor under the layer of metal, the interface periodically corrugated in the longitudinal direction of the laser with a periodicity of ΛDFB=mλ/(2neff), wherein m> The DFB grating is configured such that loss of one or more antisymmetric longitudinal modes of the laser structure via absorption to the DFB grating is sufficiently maximized so as to produce lasing of a symmetric longitudinal mode of the laser with laser emission characterized by a single-lobe beam along each direction defined by the grating diffraction orders corresponding to emission away from the plane of the grating.
公开日期	2015-07-28
申请日期	2013-12-11
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/47597]
专题	半导体激光器专利数据库
作者单位	WISCONSIN ALUMNI RESEARCH FOUNDATION
推荐引用方式 GB/T 7714	MAWST, LUKE J.,BOTEZ, DAN,EARLES, THOMAS L.,et al. Substrate-emitting transverse magnetic polarized laser employing a metal/semiconductor distributed feedback grating for symmetric-mode operation. US9093821. 2015-07-28.

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