Pulse shape symmetry and pulse width reduction in diode-pumped doubly Q-switched Nd:YVO4/KTP green laser with AO and GaAs | Zendy

Guiqiu Li | Zendy; Shengzhi Zhao | Zendy; Kejian Yan | Zendy; Dechun Li | Zendy; Jing Zou | Zendy

Open Access

Pulse shape symmetry and pulse width reduction in diode-pumped doubly Q-switched Nd:YVO4/KTP green laser with AO and GaAs

Author(s) -

Guiqiu Li,

Shengzhi Zhao,

Kejian Yan,

Dechun Li,

Jing Zou

Publication year - 2005

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.13.001178

Subject(s) - optics , rate equation , laser , materials science , diode , q switching , pulse (music) , pulse width modulation , laser diode , physics , optoelectronics , power (physics) , detector , quantum mechanics , kinetics

Using both acoustic-optic (AO) Q-switcher and GaAs saturable absorber, a diode-pumped doubly Q-switched Nd:YVO4/KTP green laser is realized for the first time to our knowledge. This laser can generate a symmetric and shorter pulse when compared with purely AO and passive Qswitching. A rate equation model is introduced to theoretically analyze the results obtained in the experiment, in which the spatial distributions of the intracavity photon density, the pump beam and the population-inversion density are taken into account. The numerical solutions of the rate equations are in good agreement with the experimental results.

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