20.500.12556/RUL-126438 Femtosecond CPA hybrid laser system with pulse-on-demand operation In this manuscript we present a true pulse-on-demand concept of a hybrid CPA laser system, consisting of a chirped-pulse fiber amplifier and an additional solid-state amplifier, capable of generating femtosecond pulses on demand without an external optical modulator/shutter. Pulse-on-demand operation is achieved by introducing idler pulses with a few nanoseconds duration and selectively switching between the femtosecond and idler pulses. The idler pulses are used to maintain a constant population inversion in the fiber amplifier as well as in the solid-state amplifier. Second harmonic generation (SHG) unit then effectively filters out the idler pulses due to their low peak power, leaving only a stable femtosecond pulse train. This concept is demonstrated on a CPA hybrid system that can generate pulses with up to 200 [mikro] J at 515 nm with a pulse duration under 450 fs. As there is no optical modulator at the laser output, the presented concept also enables further power scaling. fiber lasers pulse on demand hybrid lasers ultrashort pulses vlakenski laserji bliski na zahtevo hibridni laserji ultrakratki bliski true false true Angleški jezik Slovenski jezik V članku navedeno: "© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement"; https://www.osapublishing.org/library/license_v1.cfm (22. 4. 2021). Članek v reviji 2021-04-22 10:43:46 2021-04-22 10:43:50 2023-05-30 03:27:16 0000-00-00 00:00:00 2020 0 0 Str. 7875-7888 no. 6, art. 386769 Vol. 28 Mar. 2020 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 681.7.069.24(045) 1094-4087 10.1364/OE.386769 17063707 RAZ_Cerne_Luka_2020.pdf RAZ_Cerne_Luka_2020.pdf 1 E922E77D05DFCDFAC178AE328F006DEF d4ab009796f26c6ce90acb937594a897b513500d4d97494b2eb0a7b8407f7588 8cd6b816-a34d-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142405 https://www.osapublishing.org/oe/abstract.cfm?uri=oe-28-6-7875 1 df320ce0-a346-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=142403 Fakulteta za strojništvo 0 0 0