Autor:	Szu-Wei Wu, 吳思緯
Rok vydání:	2012
Druh dokumentu:	學位論文 ; thesis
Popis:	100 A method for laser Gaussian beam divergence measurement by Fabry Perot etalon is proposed. The scan result by incident angle change correspond full width at half maximum of the first order fringe variation by high coefficient of finesse Fabry Perot etalon. With the curve fitting method, we can measure laser beam divergence quickly. Our system has advantage of simple structure, small size, high resolution and only single point measuring. The experimental results demonstrate that the resolution of the system is 0.021 mrad and the standard deviation of repeatability is 0.015 mrad.
Databáze:	Networked Digital Library of Theses & Dissertations
Externí odkaz:	http://ndltd.ncl.edu.tw/handle/66350730801785754709 Zobrazit plný text záznamu