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Optical Engineering

Optimization of diode-pumped doubly Q-switched mode-locked laser with acousto-optic modulator and Cr4+∶YAG saturable absorber
Author(s): Tianli Feng; Shengzhi Zhao; Dechun Li; Guiqiu Li; Kejian Yang; Gang Zhang; Kang Cheng
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Paper Abstract

By considering the influence of the turn-off time and the modulation frequency of the acousto-optic (AO) modulator, the coupled rate equations for a diode-pumped doubly Q-switched and mode-locked (QML) laser with AO modulator and Cr4+∶YAG saturable absorber under Gaussian approximation are given. By numerically solving these equations, the key parameters of an optimally coupled doubly QML laser including the gain medium, the saturable absorber and the resonator as well as the modulation frequency of AO modulator are obtained, which can maximize the pulse energy of singly Q-switched envelope. A diode-pumped doubly QML Nd∶GdVO4 laser with AO modulator and Cr4+∶YAG saturable absorber is constructed and the experimental results are in agreement with the numerical simulations.

Paper Details

Date Published: 2 August 2012
PDF: 7 pages
Opt. Eng. 51(8) 084202 doi: 10.1117/1.OE.51.8.084202
Published in: Optical Engineering Volume 51, Issue 8
Show Author Affiliations
Tianli Feng, Shandong Univ. (China)
Shengzhi Zhao, Shandong Univ. (China)
Dechun Li, Shandong Univ. (China)
Guiqiu Li, Shandong Univ. (China)
Kejian Yang, Shandong Univ. (China)
Gang Zhang, Shandong Univ. (China)
Kang Cheng, Shandong Univ. (China)

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