Nonlinear compression of high energy fiber amplifier pulses in air-filled hypocycloid-core Kagome fiber

Abstract : We report on the generation of 34 fs and 50 µJ pulses from a high energy fiber amplifier system with nonlinear compression in an air-filled hypocycloid-core Kagome fiber. The unique properties of such fibers allow bridging the gap between solid core fibers-based and hollow capillary-based post-compression setups, thereby operating with pulse energies obtained with current state-of-the-art fiber systems. The overall transmission of the compression setup is over 70%. Together with Yb-doped fiber amplifier technologies, Kagome fibers therefore appear as a promising tool for efficient generation of pulses with durations below 50 fs, energies ranging from 10 to several hundreds of µJ, and high average powers.
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Florent Guichard, Achut Giree, Yoann Zaouter, Marc Hanna, Guillaume Machinet, et al.. Nonlinear compression of high energy fiber amplifier pulses in air-filled hypocycloid-core Kagome fiber. Optics Express, Optical Society of America, 2015, 23 (6), pp.7416-7423. ⟨10.1364/OE.23.007416⟩. ⟨hal-01163889⟩

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