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	Optical interconnection structure for enlarging alignment tolerance
	LEE, YONG HEE; JU, YOUNG GU; LEE, MYUNG LAE
	2001-06-26
著作权人	KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
专利号	US6253004
国家	美国
文献子类	授权发明
其他题名	Optical interconnection structure for enlarging alignment tolerance
英文摘要	An optical interconnection structure between an optoelectric device and a single mode optical fiber for enlarging an alignment tolerance is provided. The optical interconnection structure is constituted by a microlensed optoelectric device and a graded index fiber ended single mode optical fiber. Light beams emitted from the optoelectric device are collimated by the microlens on the rear surface of a substrate or are enlarged in size by being focused or diverged. The extended output light travels a predetermined distance and then reaches the graded index fiber ended single mode optical fiber. When the length of the graded index optical fiber lens is appropriate, the incident extended beams are again focused by the lens, and thus enter into the single mode optical fiber while maintaining a great coupling efficiency. The optoelectric device and the microlens are integrated by the photolithography process, such that alignment with respect to all elements within a substrate is accomplished. Thus, there is no need to make optical alignment for each single element, resulting in the possibility of mass production. Since the graded index optical fiber lens and the single mode optical fiber have the same diameter and the same circular shape, so that they are easily aligned automatically and mechanically stable.
公开日期	2001-06-26
申请日期	1999-07-09
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36586]
专题	半导体激光器专利数据库
作者单位	KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
推荐引用方式 GB/T 7714	LEE, YONG HEE,JU, YOUNG GU,LEE, MYUNG LAE. Optical interconnection structure for enlarging alignment tolerance. US6253004. 2001-06-26.

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