摘要
本文从标量波动方程出发,在抛物线方程近似下得到高斯光束在抛物型梯度折射率介质中传播模的解析解;研究了高斯光束光斑半径、波面曲率半径以及强度分布的规律;并讨论了准几何光学近似条件。
In this paper bascd on the scalar wave equation the analytical solution forGaussian beam propagating in a parabolic gradient--index rod is obtained in theparabolic equation approxirration. The characteristics of the beam radius,wave-front carvature fadius and the intensity distribution are studied. The quasi-geometrical--optics approximation is also discussed.
出处
《量子电子学》
CSCD
1992年第3期288-294,共7页
基金
福建省自然科学基金
