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	Optical fiber coupler having a relaxed alignment tolerance
	COLEMAN, CHRISTOPHER L.
	2005-10-18
著作权人	AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
专利号	US6956992
国家	美国
文献子类	授权发明
其他题名	Optical fiber coupler having a relaxed alignment tolerance
英文摘要	An optical coupler converts a light distribution from a light source into a small angle distribution that extends over a volume larger than the variations in the alignment of an optical fiber. In one embodiment, a diffractive or hybrid diffractive/refractive bifocal lens forms first and second images of the light source respectively in first and second image planes. An input face of the optical fiber is between the first and second image planes and receives light diverging from the first image plane and light converging toward the second image plane. The net optical power coupling into the fiber is uniform over a large range of fiber positions and provides the optical coupler with a relaxed tolerance for misalignment of the fiber or the light source. The relaxed alignment tolerance facilitates low cost manufacture of multi-channel optical transmitters using single-mode optical fibers.
公开日期	2005-10-18
申请日期	2002-07-31
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36905]
专题	半导体激光器专利数据库
作者单位	AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
推荐引用方式 GB/T 7714	COLEMAN, CHRISTOPHER L.. Optical fiber coupler having a relaxed alignment tolerance. US6956992. 2005-10-18.

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