Using a modified ABCD-matrix approach accounting for nonlinear refraction in active medium, we determined the ranges of cavity parameters providing a mode-locking of Yb:KYW-laser in usual z-fold cavity configuration.

• 利用解释激活介质中非线性折射并修正ABCD矩阵的近似；确定了产生自锁模z-fold腔结构Yb:KYW激光器的腔参数的范围.