17 February 2017 High power Yb:CALGO ultrafast regenerative amplifier for industrial application
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Abstract
We present a high-power, single-crystal based, Yb:CALGO regenerative amplifier. The system delivers more than 50 W output power in continuous-wave regime, with diffraction limited beam quality. In Q-switching regime the spectrum is centered at 1043 nm and is 11 nm wide. In regenerative amplification experiments we achieved 34 W at 500 kHz with 12.7 nm FWHM wide spectra centered at 1044 nm seeding with a broadly tunable, single-prism SESAM mode-locked Yb:CALGO laser providing 9 nm wide spectra at 1049 nm. Pulse duration after compression was 140 fs, with excellent beam quality (M2 < 1.25).
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E. Caracciolo, E. Caracciolo, A. Guandalini, A. Guandalini, F. Pirzio, F. Pirzio, M. Kemnitzer, M. Kemnitzer, F. Kienle, F. Kienle, A. Agnesi, A. Agnesi, J. Aus der Au, J. Aus der Au, } "High power Yb:CALGO ultrafast regenerative amplifier for industrial application", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100821F (17 February 2017); doi: 10.1117/12.2250756; https://doi.org/10.1117/12.2250756
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