Analysis of a self Q-switched mode-locking c-cut Nd : GdVO4/KTP green laser

作者：Li Ming^*; Zhao Shengzhi; Yang Kejian; Li Guiqiu; Li Dechun; Wang Jing; An Jing; Qiao Wenchao

来源：Physica D: Nonlinear Phenomena , 2007, 234(2): 150-156.

DOI：10.1016/j.physd.2007.07.016

• self-mode-locking
• passive Q-switched
• KLM
• cascading of second-order nonlinearities

A diode-pumped self Q-switched mode-locking intracavity frequency doubled c-cut Nd:GdVO4/KTP green laser is presented. The self-mode-locking is self-starting and stable. About 100% modulation depth for the self-mode-locked green pulses has been achieved. Using the hyperbolic secant function methods and the theory of Kerr-lens mode-locking, considering the Kerr-lens effect of gain medium, the cascading of second-order nonlinearities of KTP crystal, and also the influences of continuous pump rate, the stimulated-radiation lifetime of the active medium, we give a developed rate equation model for self Q-switched and mode-locked laser. For this developed model, the theoretical evaluations are in good agreement with the experimental results and the width of the mode-locked green pulse was estimated to be about 210 ps.

• 出版日期2007-10-15
• 单位山东大学