Performance of diode-end-pumped Cr4+, Nd3+:YAG self-Q-switched and Nd:YAG/Cr4+:YAG diffusion-bonded lasers

Yehoshua Y. Kalisky; Leonid Kravchik; Milan R. Kokta

doi:10.1117/12.479015

16 June 2003 Performance of diode-end-pumped Cr⁴⁺, Nd³⁺:YAG self Q switched and Nd:YAG/Cr⁴⁺:YAG diffusion-bonded lasers

Yehoshua Y. Kalisky, Leonid Kravchik, Milan R. Kokta

Proceedings Volume 4970, Laser Crystals, Glasses, and Nonlinear Materials Growth and Characterization; (2003) https://doi.org/10.1117/12.479015
Event: High-Power Lasers and Applications, 2003, San Jose, CA, United States

Abstract

Self passively Q-switching of a diode-pumped Cr,Nd:YAG, where the Cr⁴⁺ is used as a saturable absorber for the 1064 nm laser emission is reported. The maximum average output power was obtained using an output coupler of R=86%. The self Q-switched diode pumped laser yielded 1.86-W average output power with low threshold pumping power (≈1.7-W), average slope efficiency of ≈34%, pulse duration of about 14-16 nsec, and modulation frequency ranging from 2.4 kHz-73 kHz, depending on the input pumping power. Higher slope efficiency (42%) and shorter Q-switched pulses were obtained for a Q-switched Nd:YAG/Cr⁴⁺:YAG diffusion bonded laser. A comparison of the codoped Cr,Nd:YAG laser performance, with that of a diffusion bonded laser is reported and analyzed.

Citation Download Citation

Yehoshua Y. Kalisky, Leonid Kravchik, and Milan R. Kokta "Performance of diode-end-pumped Cr⁴⁺, Nd³⁺:YAG self Q switched and Nd:YAG/Cr⁴⁺:YAG diffusion-bonded lasers", Proc. SPIE 4970, Laser Crystals, Glasses, and Nonlinear Materials Growth and Characterization, (16 June 2003); https://doi.org/10.1117/12.479015

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KEYWORDS

Crystals

Chromium

Q switched lasers

Semiconductor lasers

YAG lasers

Laser crystals

Diffusion

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