Keywords Semiconductor laser;Propagation and Transforming of beams;Hermite-Gaussian beams;Laguerre-Gaussian beams;Optical mode converter;Collimation of beams;Coupling of beams;

• 关键词半导体激光束;光束的传输与变换;厄米-高斯光束;拉盖尔-高斯光束;光学模式转换;光束准直;光束耦合;