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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