16 March 2016 Performance of the Yb:Lu2O3 laser crystal in diode-pumped femtosecond oscillators and high-power regenerative amplifiers
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Abstract
We investigated the performance of the laser gain medium Yb:Lu2O3 in a low-power oscillator and a high-power regenerative amplifier. Almost Fourier transform limited 78-fs pulses were demonstrated in the low-power, SESAM mode-locked oscillator pumped with a single-mode fiber-coupled laser diode. Exploiting the excellent thermomechanical properties of Yb:Lu2O3, we were able to achieve up to 22.2 W of average output power at a repetition rate of 500 kHz and 670-fs long pulses with the regenerative bulk amplifier. Experiments on further power up-scaling and pulse duration shortening are in progress. Up to 65 W were already proved in preliminary tests in cw regime.
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E. Caracciolo, E. Caracciolo, F. Pirzio, F. Pirzio, M. Kemnitzer, M. Kemnitzer, A. Guandalini, A. Guandalini, F. Kienle, F. Kienle, A. Agnesi, A. Agnesi, J. Aus der Au, J. Aus der Au, } "Performance of the Yb:Lu2O3 laser crystal in diode-pumped femtosecond oscillators and high-power regenerative amplifiers", Proc. SPIE 9726, Solid State Lasers XXV: Technology and Devices, 97260Z (16 March 2016); doi: 10.1117/12.2210835; https://doi.org/10.1117/12.2210835
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