Passively Q-switched diode-pumped Yb:YAG laser using Cr4+ -doped garnets

Yehoshua Y. Kalisky; Christophe Labbe; Karol Waichman; Leonid Kravchik; U. Rachum; Peizhen Deng; Jun Xu; Jun Dong; Wei Chen

doi:10.1117/12.460816

28 March 2002 Passively Q-switched diode-pumped Yb:YAG laser using Cr⁴⁺-doped garnets

Yehoshua Y. Kalisky, Christophe Labbe, Karol Waichman, Leonid Kravchik, U. Rachum, Peizhen Deng, Jun Xu, Jun Dong, Wei Chen

Author Affiliations +

Proceedings Volume 4628, Nonlinear Materials: Growth, Characterization, Devices, and Applications; (2002) https://doi.org/10.1117/12.460816
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States

Abstract

We investigated the operation of a diode-pumped Yb:YAG laser passively Q-switched, by Cr⁴⁺:YAG, Cr⁴⁺:LuAG, and Cr⁴⁺:GSGG saturable absorbers. The results presented here are focused towards the design of a passively Q-switched Yb:YAG microlaser. The free-running performance of both rod and a disk Yb:YAG is characterized, and experimental parameters such as gain and loss are evaluated. These values, together with the value of the stimulated emission cross section, e.g. (sigma) _emequals3.3x10^-20 cm² were found to fit between our experimental results and an existing numerical model which relates the experimental and physical parameters to the minimal threshold pumping power. Q-switched pulses with maximum peak power of approximately equals 10.4-kW, and energy of approximately equals 0.5 mJ/pulse were extracted with 30% extraction efficiency.

Citation Download Citation

Yehoshua Y. Kalisky, Christophe Labbe, Karol Waichman, Leonid Kravchik, U. Rachum, Peizhen Deng, Jun Xu, Jun Dong, and Wei Chen "Passively Q-switched diode-pumped Yb:YAG laser using Cr⁴⁺-doped garnets", Proc. SPIE 4628, Nonlinear Materials: Growth, Characterization, Devices, and Applications, (28 March 2002); https://doi.org/10.1117/12.460816

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