抛物型发散梯度折射率纤维透镜的光线传播和近轴成像特性

Light ray propagation and paraxial imaging characteristics of parabolic defocusing GRIN fiber lenses

本文从光线方程出发,讨论一种抛物型发散梯度折射率纤维透镜的光线传播和近轴成像特性,导出光线在纤维透镜中传播轨迹的解析解,并给出纤维透镜的等效焦距、主平面和焦平面位置的计算公式,以及近轴成像公式。

In this paper we discuss the light ray propagation and paraxial imaging characteristics of a parabolic defocusing GRIN fiber lens based on the ray equation. The analytical solutions are found for the ray paths propagating in a parabolic defocusing GRIN fiber lens and used to derive the GRIN lens law. The equivalent focal length and the principal planes are determined.