Electroluminescent diode with mode expander

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	Electroluminescent diode with mode expander
其他题名	Electroluminescent diode with mode expander
	ALPHONSE, GERARD ARGANT; ANDREWS, JAMES T.; MENNA, RAYMOND J.
	2000-03-07
专利权人	TRUMPF PHOTONICS, INC.
公开日期	2000-03-07
授权国家	美国
专利类型	授权发明
摘要	A semiconductor electro luminescent diode having a body of a semiconductor material with the body having a pair of spaced opposed end surfaces, side surfaces and top and bottom surfaces. The body includes therein an active layer which extends from one end surface to a point spaced from the other end surface. The active layer is of a width narrower than the distance between the side surfaces. Also, the active layer has a portion adjacent the other end surface of the body which is tapered to come to a point. First clad layers of a material having an index of refraction smaller than that of the active layer are at opposite sides of the active layer and extend between the end of the active layer and the other end surface of the body. Second clad layers of a material having an index of refraction larger than that of the first clad layers but less than the index of refraction of the active layer are on the first clad layer. Radiation generated in the active layer and emitted from the pointed end of the active layer extends in area in the portion of the second clad layer between the pointed end of the active layer and the other end of the body so that the area of the beam of radiation emitted from the -diode is larger than the area of the beam formed in the active layer.
其他摘要	一种半导体电致发光二极管，具有半导体材料的主体，主体具有一对间隔开的相对的端面，侧面和顶面和底面。主体在其中包括有源层，该有源层从一个端面延伸到与另一个端面间隔开的点。有源层的宽度窄于侧表面之间的距离。而且，有源层具有与主体的另一个端面相邻的部分，该部分逐渐变细到一定程度。折射率小于有源层折射率的材料的第一包层位于有源层的相对侧，并在有源层的端部和主体的另一个端面之间延伸。在第一包层上具有折射率大于第一包层的折射率但小于有源层的折射率的材料的第二包层。在有源层中产生并从有源层的尖端发射的辐射在第二覆层的在有源层的尖端和主体的另一端之间的部分中的区域中延伸，使得光束的区域在从二极管发射的辐射大于在有源层中形成的光束的面积。
主权项	A semiconductor electroluminescent diode comprising: a body of a semiconductor material having a pair of spaced end surfaces at least one of which is a radiation emitting surface; an active region within the body which serves to generate radiation and as a waveguide, said active region having an end spaced from the radiation emitting end surface of the body; a first clad region within said body and around the active region and between said end of the active region and the radiation emitting surface of said body; and a second clad region within said body having a first portion adjacent to a first side of the first clad region and having a second portion adjacent to a second side of the first clad region; said first clad region being of a material having a refraction index smaller than that of the material of the active region, and said second clad region being of a material having a refractive index less than that of the first clad region and less than that of the active region.
申请日期	1997-10-07
专利号	US6034380
专利状态	失效
申请号	US08/946180
公开（公告）号	US6034380
IPC 分类号	H01L33/00 \| H01S5/20 \| H01S5/00 \| H01S5/32 \| H05B33/00 \| H05B33/12 \| H05B33/22 \| H05B33/24
专利代理人	-
代理机构	BURKE, WILLIAM J.
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/45876
专题	半导体激光器专利数据库
作者单位	TRUMPF PHOTONICS, INC.
推荐引用方式 GB/T 7714	ALPHONSE, GERARD ARGANT,ANDREWS, JAMES T.,MENNA, RAYMOND J.. Electroluminescent diode with mode expander. US6034380[P]. 2000-03-07.

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