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	Systems and methods for characterizing laser beam quality
	WIDEN, KENNETH C.
	2008-07-29
著作权人	BOEING COMPANY, THE
专利号	US7405815
国家	美国
文献子类	授权发明
其他题名	Systems and methods for characterizing laser beam quality
英文摘要	A measure of the quality of a laser beam is obtained by comparing the power of a theoretical Gaussian beam through a (certain sized area) pinhole to the power of a test beam through a same sized (area) pinhole. The theoretical surrogate Gaussian beam with the same second moment of intensity as the test beam is used to determine the “bucket size” used in “power-in-the-bucket” techniques. The bucket size is an interaction area determined by the wavelength of the laser light, the focusing distance, and the 1/e2 radius of the near field intensity. The beam quality is determined by taking the square root of the ratio of the theoretical power through a bucket and the actual power through a pinhole with the same size as the bucket. The beam quality of different types of beam profiles can be obtained with a single method or measure.
公开日期	2008-07-29
申请日期	2003-11-04
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/34490]
专题	半导体激光器专利数据库
作者单位	BOEING COMPANY, THE
推荐引用方式 GB/T 7714	WIDEN, KENNETH C.. Systems and methods for characterizing laser beam quality. US7405815. 2008-07-29.

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