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Dynamics of diode-pumped microchip laser passively Q-switched with Cr:YAG

Weiyu Wang, Mali Gong, Guofan Jin

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Abstract

The reason for the instability of passively Q-switched lasers has been analyzed. Based on those reason is a novel model named pre-pumping passively Q switching is presented. The model we developed accounts for the properties of the lasing material, the saturable absorber, the pumping power and the resonator. With the aid of new factor fp, we calculate the effects of pre-pumping mechanism on the pulse output energy. Like the model of Guohua Xiao the express we derived can be used to optimize the laser's performance.

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What this paper is about

The reason for the instability of passively Q-switched lasers has been analyzed. Based on those reason is a novel model named pre-pumping passively Q switching is presented. The model we developed accounts for the properties of the lasing material, the saturable absorber, the pumping power and the resonator. With the aid of new factor fp, we calculate the effects of pre-pumping mechanism on the pulse output energy. Like the model of Guohua Xiao the express we derived can be used to optimize the laser's performance.

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Available abstract

The reason for the instability of passively Q-switched lasers has been analyzed. Based on those reason is a novel model named pre-pumping passively Q switching is presented. The model we developed accounts for the properties of the lasing material, the saturable absorber, the pumping power and the resonator. With the aid of new factor fp, we calculate the effects of pre-pumping mechanism on the pulse output energy. Like the model of Guohua Xiao the express we derived can be used to optimize the laser's performance.

Key concepts: Lasing threshold, Q-switching, Laser, Saturable absorption, Resonator, Diode, Materials science, Optics

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