Frequency conversion in the visible and UV regions of a high average power and high peak power ultrafast fiber amplifier

In this contribution, we report on the frequency conversion into the visible and UV region of a high average power and high energy ultrafast fiber amplifier. The laser uses a very compact chirped pulse fiber amplifier architecture that delivers as much as 385 μJ of energy and 1 GW of peak power per pulse. It includes only one power amplifier composed of a state-of-the-art photonic crystal fiber which allows operation at high repetition rate (>; 100 kHz) and high average power (~ 100W). Subsequent frequency conversion is demonstrated and up to 150 μJ, 90 μJ and 35 μJ are achieved at, respectively, 515 nm, 343 nm and 258 nm for a maximum of 250 μJ at the fundamental wavelength. Additionally, recent results will be presented focusing on average power rather than energy for which 50 W at 515 nm and 25 W at 343 nm will be presented.