Laser-diode-pumped, doubly Q-switched, intracavity optical parametric oscillator considering Gaussian distribution of intracavity photon densities

Jing Wang; Shengzhi Zhao; Guiqiu Li; Kejian Yang; De-chun Li; Jing An; Ming Li

doi:10.1117/1.2737448

1 May 2007 Laser-diode-pumped, doubly Q-switched, intracavity optical parametric oscillator considering Gaussian distribution of intracavity photon densities

Jing Wang, Shengzhi Zhao, Guiqiu Li, Kejian Yang, De-chun Li, Jing An, Ming Li

Author Affiliations +

Optical Engineering, Vol. 46, Issue 5, 054202 (May 2007). https://doi.org/10.1117/1.2737448

Abstract

By considering the Gaussian spatial distribution of the initial population-inversion density and the intracavity photon densities of the fundamental, the signal, and the idle lights, the rate equations of a laser-diode-pumped, doubly Q-switched, intracavity optical parametric oscillator (IOPO) with both acousto-optic modulator (AO) and C^r4+:YAG saturable absorber are derived. The influence of the pump rate, the thermal effect in the gain medium, and the change of the photon density along the cavity axis have also been taken into account the equations. In the experiment, a laser-diode-pumped, doubly Q-switched, Nd:YVO₄/KTP IOPO with an acousto-optic (AO) modulator and a Cr:YAG saturable absorber is realized. The shortest pulse width of 6.7 ns has been obtained at the maximum pump power of 6.3 W. The experimental results agree well with the theoretical calculations.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Jing Wang, Shengzhi Zhao, Guiqiu Li, Kejian Yang, De-chun Li, Jing An, and Ming Li "Laser-diode-pumped, doubly Q-switched, intracavity optical parametric oscillator considering Gaussian distribution of intracavity photon densities," Optical Engineering 46(5), 054202 (1 May 2007). https://doi.org/10.1117/1.2737448

Published: 1 May 2007

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