用准抛物型等效法研究高斯型梯度折射率纤维透镜的成像  

Study on the Image of Gaussian-type GRIN Fiber Lens by the "Quasi-parabolic-type" Equivalent Method

作　　者：廖廷俤 徐永[1] 

机构地区：[1]福建师范大学激光研究所

出　　处：《福建师范大学学报（自然科学版）》1992年第4期41-46,共6页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省自然科学基金

摘　　要：本文用准抛物型等效法研究了高斯型梯度折射率纤维透镜的近轴成像,导出等效研究法的适用条件。结果表明,利用等效法所得成像计算结果与用数值法之精确结果十分吻合。This paper mades a study of the image of Gaussian-type GRIN fiber lens by using a new method, ie, the 'quasi-parabolic-type' equivalent method. The applicable conditions of this method are analysed and when the conditions are satisfied, the gaussian parameter calculating results based on this method are quite conincident with those obtained by solving the paraxial ray equation numberically.

关 键 词：梯度折射率 自聚集透镜 光学纤维 

分 类 号：TN253[电子电信—物理电子学]