Abstract

A diode-pumped dual-loss-modulated Q-switched and mode-locked (QML) Nd:GdVO4/KTP green laser with an acousto-optic modulator (AOM) and GaAs saturable absorber is presented. The experimental results show that the stability and the peak power of the dual-loss-modulated QML Nd:GdVO4/KTP green laser are significantly improved. The pulse width of the Q-switched pulse envelope in the dual-loss-modulation QML green laser has a compression of 50% compared with that in the singly passively QML green laser with GaAs. By using a hyperbolic secant square function and considering the Gaussian distribution of the intracavity photon density, the coupled equations for diode-pumped dual-loss-modulated QML Nd:GdVO4 green laser are given, and the numerical solutions of the equations are in good agreement with the experimental results.

© 2010 Optical Society of America

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