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	Laser and fiber coupling control
	PEZESHKI, BARDIA; KUBICKY, JAY; VAL, ED
	2008-06-03
著作权人	NEOPHOTONICS CORPORATION
专利号	US7382950
国家	美国
文献子类	授权发明
其他题名	Laser and fiber coupling control
英文摘要	One or more single mode waveguide devices are fiber coupled such that signals to an optical element affect the coupling of the waveguide device to an optical fiber. A number of systems and methods are disclosed to adjust the coupling of the waveguide device to the optical fiber. These include dithering the tunable optical element at different frequencies along differing axes and using a lock-in technique to derive an error signal for each degree of motion, using a beamsplitter to form a secondary image of the focused beam on a position-sensitive detector, the use of a chiseled fiber to generate reflections from the angled facets, using an additional laser for a secondary image, or obtaining a secondary image from an angled fiber or a parasitic reflection.
公开日期	2008-06-03
申请日期	2004-05-20
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/45985]
专题	半导体激光器专利数据库
作者单位	NEOPHOTONICS CORPORATION
推荐引用方式 GB/T 7714	PEZESHKI, BARDIA,KUBICKY, JAY,VAL, ED. Laser and fiber coupling control. US7382950. 2008-06-03.

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