5 December 2014 Passively mode-locked quasi-continuously end-pumped Yb:YAG laser at room and cryogenic temperatures
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Proceedings Volume 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 94410H (2014) https://doi.org/10.1117/12.2083803
Event: XIX Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2014, Jelenia Gora, Poland
Abstract
In this work, we have investigated operation of a quasi-continuously diode pumped Yb:YAG laser at room and cryogenic temperatures. In free-running regime, an increase in laser efficiency has been observed from 52 % optical-to-optical efficiency at room temperature to 69 % at 92 K. With passive mode-locking, the laser operated with higher efficiency and stability against Q-switching instabilities when the laser crystal was cooled to cryogenic temperatures. On the other hand, increase in pulse duration as a consequence of linewidth narrowing has been observed. At room temperature, pulses with duration of 2.8 ps were generated with 4 % optical-to-optical efficiency, compared to 11.8 ps pulse duration and 13 % optical-to-optical efficiency at 85 K.
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Josef Cupal, Michal Jelínek, David Vyhlídal, Václav Kubeček, "Passively mode-locked quasi-continuously end-pumped Yb:YAG laser at room and cryogenic temperatures", Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 94410H (5 December 2014); doi: 10.1117/12.2083803; https://doi.org/10.1117/12.2083803
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