摘要
The typical laser characteristics of a laser diode pumped,solid-state laser with a Z-type resonator structure are analyzed by the transform circle approach.Laser waists change with the thennal focus length of the lasing medium so that the output power becomes unstable.In particular,there is a very unstable operation region when the pump power is of medium magnitude.A method is put forward to avoid this situation.
基金
Supported by Tianjin Natural Science Foundation under Grant No.99380111
the National Natural Science Foundation of China under Grant No.69825108。
