31 October 2014 Femtosecond damage threshold at kHz and MHz pulse repetition rates
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Femtosecond laser-induced damage threshold (LIDT) measurements for different optical components are well studied for a set of laser pulse repetition rates spanning the range between 1 Hz and 1 kHz. Recent years saw the advent of high-repetition-rate femtosecond systems with relatively high pulse energy. Therefore investigation of LIDT in the MHz region is essential. We performed several comparative femtosecond LIDT measurements on typically used ultrafast optical elements with different Ti:Sapphire laser systems having substantially different pulse repetition rates (a 1 kHz regenerative amplifier and a 4.3 MHz long-cavity oscillator) and found a substantially lower MHz LIDT threshhold.
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Benedek J. Nagy, Benedek J. Nagy, Lénárd Vámos, Lénárd Vámos, Dániel Oszetzky, Dániel Oszetzky, Péter Rácz, Péter Rácz, Péter Dombi, Péter Dombi, } "Femtosecond damage threshold at kHz and MHz pulse repetition rates", Proc. SPIE 9237, Laser-Induced Damage in Optical Materials: 2014, 923711 (31 October 2014); doi: 10.1117/12.2068233; https://doi.org/10.1117/12.2068233

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