关键词: 空间强度分布, 固体激光器, 横模分布, 光束质量, 速率方程

Abstract:

Laser diode endpumped solid laser as the research object,with different spatial intensity distribution of the pump light,by numerical solving the rate equation,the variation regularity of the transverse mode distribution in the cavity are obtained.Then the influences of the spatial intensity distribution of the pump light on the beam quality are analyzed.The results show that as the radius of the pump light close to the radius of the oscillating light,the percentage of the fundamental mode will increase,while the influences of pump power on the mode distribution is not very obvious.

Key words: spatial intensity distribution;solid-state laser;transverse mode distribution;beam quality;rate equation