Passively Q-switched and mode-locked 1.34-µm Nd:YAG laser with V3+:YAG saturable absorber

Yufei Li; Shengzhi Zhao; Yuming Sun; Huanjun Qi; Gang Zhang

doi:10.1117/1.3522643

1 December 2010 Passively Q-switched and mode-locked 1.34-µm Nd:YAG laser with V³⁺:YAG saturable absorber

Yufei Li, Shengzhi Zhao, Yuming Sun, Huanjun Qi, Gang Zhang

Author Affiliations +

Optical Engineering, Vol. 49, Issue 12, 124202 (December 2010). https://doi.org/10.1117/1.3522643

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.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Yufei Li, Shengzhi Zhao, Yuming Sun, Huanjun Qi, and Gang Zhang "Passively Q-switched and mode-locked 1.34-µm Nd:YAG laser with V³⁺:YAG saturable absorber," Optical Engineering 49(12), 124202 (1 December 2010). https://doi.org/10.1117/1.3522643

Published: 1 December 2010

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