7 May 2013 High-power, picosecond pulse thin-disk lasers in the Hilase project
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Abstract
Development of high-power, picosecond laser sources is a desirable venture for both industry and research. Within the Hilase project, we are conducting research on both 500-mJ, 1-kHz and 5-mJ, 100-kHz picosecond laser sources based on the Yb:YAG thin-disk technology. We have developed a prototype thin-disk regenerative amplifier operating up to 10- kHz repetition rate pumped by the 940-nm fiber-coupled laser diodes. We achieved 5-mJ pulse energy at 10-kHz operation and 29.5-mJ at 1-kHz. Afterwards, we developed the high-energy regenerative amplifier operating at fixed repetition rate of 1-kHz and the pulse energy was achieved up to 40-mJ. Simultaneously, we elaborated the highrepetition rate regenerative amplifier operating at 100-kHz with pulse energy of 220-μJ. The amplified pulse was compressed with the efficiency of 88% using chirped volume Bragg grating.
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Michal Chyla, Taisuke Miura, Martin Smrz, Patricie Severova, Ondrej Novak, Siva Sankar Nagisetty, Akira Endo, Tomas Mocek, "High-power, picosecond pulse thin-disk lasers in the Hilase project", Proc. SPIE 8780, High-Power, High-Energy, and High-Intensity Laser Technology; and Research Using Extreme Light: Entering New Frontiers with Petawatt-Class Lasers, 87800A (7 May 2013); doi: 10.1117/12.2017448; https://doi.org/10.1117/12.2017448
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