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	Optical fiber coupling having liquid crystal adaptive coupler
	GU, DONG-FENG; TABER, DONALD B.; WINKER, BRUCE K.
	2005-02-24
著作权人	TELEDYNE SCIENTIFIC & IMAGING, LLC
专利号	US20050041919A1
国家	美国
文献子类	发明申请
其他题名	Optical fiber coupling having liquid crystal adaptive coupler
英文摘要	An apparatus for optically coupling a light source with a light-receiving end face of an optical waveguide comprises a lens for focusing a light beam emitted from the light source at a focal point on the light-receiving end face of the optical waveguide. An adaptive coupler, positioned in the optical path, is responsive to a beam steering control signal for steering and aligning the focal point relative to the light-receiving end face of the optical waveguide. In one form, the adaptive coupler comprises a pair of transparent substrates having confronting, parallel inner faces, the inner face of one of the pair of substrates carrying a beam intercepting, optically transparent, constant potential electrode and the inner face of the other of the pair of substrates carrying an electrically resistive, beam intercepting, optically transparent film. A pair of spaced apart electrodes in electrical contact with the film apply a linear voltage gradient along the film. An electro-optical phase shifting medium is disposed between the confronting inner faces of the substrates. The application of selected voltages to the electrodes creates a linear voltage gradient along the aforementioned film on the inner face of the one substrate resulting in a linearly varying electric field between that film and the constant potential electrode creating a corresponding linear variation in the refractive index of the liquid crystal medium and a linear wavefront tilt in the intercepting optical beam.
公开日期	2005-02-24
申请日期	2004-09-23
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/53441]
专题	半导体激光器专利数据库
作者单位	TELEDYNE SCIENTIFIC & IMAGING, LLC
推荐引用方式 GB/T 7714	GU, DONG-FENG,TABER, DONALD B.,WINKER, BRUCE K.. Optical fiber coupling having liquid crystal adaptive coupler. US20050041919A1. 2005-02-24.

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