Laser collimator for a free space optical link

OPT OpenIR > 半导体激光器专利数据库

	Laser collimator for a free space optical link
其他题名	Laser collimator for a free space optical link
	WU, LI; LING, JIWU; CHEN, CHAOPING; HUANG, JINHUA; ZHANG, SHANCONG; JOHNSON, DERWYN C.; TEITELBAUM, NEIL
	2002-05-16
专利权人	JDS UNIPHASE CORPORATION
公开日期	2002-05-16
授权国家	美国
专利类型	发明申请
摘要	The invention relates to the design of laser collimators for free space through-the-air optical links. The laser collimator provides means for expanding the diameter of a light beam emitted from the end of a monomode optical fiber that has been optical coupled to a semiconductor laser diode and projecting through free space the expanded beam as a low divergence beam of substantially parallel rays. The laser collimators disclosed are compact, simple to make, and overcome many of the deleterious effects that result from the requirement that the air-glass surface terminating the end of the monomode fiber coupled to the semiconductor laser is not normal to the axis of the optical fiber. Means are also disclosed for increasing the divergence of the cone of light emitted from the tip of an optical fiber thereby enabling the construction of laser collimators with larger expansion ratios in a compact size.
其他摘要	本发明涉及用于自由空间通过空中光学链路的激光准直器的设计。激光准直器提供了用于扩展从单模光纤端部发射的光束直径的装置，所述单模光纤已经光耦合到半导体激光二极管并且通过自由空间投射扩展光束作为基本平行光线的低发散光束。所公开的激光准直器结构紧凑，制造简单，并且克服了许多有害影响，这些影响是由于要求终止连接到半导体激光器的单模光纤末端的气玻璃表面不垂直于光学轴。纤维。还公开了用于增加从光纤尖端发射的光锥的发散的装置，从而能够以紧凑的尺寸构造具有较大扩展比的激光准直器。
主权项	1 A laser collimator for substantially collimating a beam of light, comprising: an optical fiber having a cladding bounding a core, said optical fiber having an input end for receiving laser light and a slanted output end for transmitting said light; a lens for substantially collimating an input beam of light received from the output end of the optical fiber; a light transmissive element so located and oriented between the optical fiber output end and the lens for correcting an angular deviation in the beam of light exiting the slanted output end.
申请日期	2001-10-17
专利号	US20020057873A1
专利状态	失效
申请号	US09/981122
公开（公告）号	US20020057873A1
IPC 分类号	G02B6/26 \| G02B6/32
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/52559
专题	半导体激光器专利数据库
作者单位	JDS UNIPHASE CORPORATION
推荐引用方式 GB/T 7714	WU, LI,LING, JIWU,CHEN, CHAOPING,et al. Laser collimator for a free space optical link. US20020057873A1[P]. 2002-05-16.