26 March 2013 Zero-phonon-line pumped 1 kHz Yb:YAG thin-disk regenerative amplifier
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We are developing high-energy thin-disk regenerative amplifier operating at kilohertz repetition rate delivering 1-2 ps long pulses for science and industry applications. We have developed a prototype Yb:YAG thin disk regenerative amplifier which can operate up to 10-kHz repetition rate pumped by the 940-nm laser diode. The pulse energy was achieved to 5-mJ at 10-kHz operation and to 29.5-mJ at 1-kHz operation. We found that the pulsed pumping method can improve the optical-to-optical efficiency. We demonstrated the zero-phonon-line-pumped (968.825-nm1) regenerative amplifier at 1-kHz, and obtained the output energy of 32-mJ with nearly diffraction limited beam profile.
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Michal Chyla, Michal Chyla, Taisuke Miura, Taisuke Miura, Martin Smrz, Martin Smrz, Patricie Severova, Patricie Severova, Ondrej Novak, Ondrej Novak, Akira Endo, Akira Endo, Tomas Mocek, Tomas Mocek, } "Zero-phonon-line pumped 1 kHz Yb:YAG thin-disk regenerative amplifier", Proc. SPIE 8599, Solid State Lasers XXII: Technology and Devices, 85991Q (26 March 2013); doi: 10.1117/12.2004535; https://doi.org/10.1117/12.2004535

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