摘要
从求解柱坐标内亥姆霍兹方程出发，导出了类透镜介质传导模的特征参量、场分布状态及传播常数，求出了入射激光束和导模之间的耦合系数，并讨论了它们的物理意义．
The propagation modes in the lenslike medium, including the spot size, field distribution pattern and their propagation constant,are obtained by solving the Helmholtz equation in the cylindrical coordinate. The coupling coefficients between the incident laser and those propagation modes are derived and discussed.
出处
《武汉测绘科技大学学报》
CSCD
1994年第4期367-370,共4页
Geomatics and Information Science of Wuhan University
关键词
波动方程
类透镜介质
传导模
耦合系数
激光束
wave equation
lenslike medium
propagation mode
coupling coefficient
