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Optical Engineering

Passively Q-switched and mode-locked 1.34-µm Nd:YAG laser with V3+:YAG saturable absorber
Author(s): Yufei Li; Shengzhi Zhao; Yuming Sun; Huanjun Qi; Gang Zhang
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Paper Abstract

By using vanadium-ion-doped YAG crystal (V3+:YAG) as a saturable absorber, a xenon-lamp-pumped passively Q-switched and mode-locked (QML) Nd:YAG laser at 1.34 µm is realized in a straight cavity. About 90% modulation depth of mode locking of the pulse is obtained. The pulse energy and the pulse width of the QML laser are measured. Under the plane-wave approximation, considering the pump rate and the stimulated radiation lifetime of the active medium as well as the excited-state lifetime of the saturable absorber, modified coupled rate equations are introduced to reconstruct the xenon-lamp-pumped passively QML laser with V3+:YAG. By solving the equations numerically, the theoretical evaluations are found to be in good agreement with the experimental results. The numerical simulation results demonstrate that the model under the plane-wave approximation is accurate enough to describe the dynamical process of xenon-lamp-pumped passively QML laser with V3+:YAG.

Paper Details

Date Published: 1 December 2010
PDF: 5 pages
Opt. Eng. 49(12) 124202 doi: 10.1117/1.3522643
Published in: Optical Engineering Volume 49, Issue 12
Show Author Affiliations
Yufei Li, Shandong Univ. (China)
Shengzhi Zhao, Shandong Univ. (China)
Yuming Sun, Shandong Univ. (China)
Huanjun Qi, Shandong Univ. (China)
Gang Zhang, Shandong Univ. (China)


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