系统地研究了用带有非线性倍频晶体的附加耦合腔来压窄激光光脉冲的动力学作用过程,首次给出了该锁模激光系统在瞬态平衡时输出脉宽的具体表达式；实验测量结果与理论计算值相比吻合得很好；最后,文中还报道了有关实验参量与该锁模激光系统输出特性的关系曲线.

Dynamic processes of the modelocked laser based on an auxiliary coupled cavity containing a nonlinear frequency-doubling crystal has systematically been studied in this paper. The specific formulas of the output pulse width of this modelocked laser in instantaneously dynamic equilibrium are given for the first time. And, our studying results show that the experimental results coincide with the theoretical calculations dramatically. Finally, we have also repored the dependence of this laser output characteric on some parameters.