Abstract
We report nonlinear compression down to 100 fs and 200 µJ pulses using an air-filled hypocycloid-core Kagome fiber. The unique properties of such fibers allow us to overcome limitations of standard nonlinear compression waveguides together with an excellent overall efficiency of more than 80%. Such fibers therefore appear as a promising tool for the generation of ultrashort pulses arising from high average power fiber chirped-pulse amplifier with typical energy ranging from 10 to several hundreds of µJ.
© 2014 Optical Society of America
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