We report on nonlinear pulse compression at very high average power. A high-power fiber
chirped pulse amplification system based on a novel large pitch photonic crystal fiber …

We report on a highpower femtosecond fiber chirped-pulse amplification system with an
excellent beam quality (M^ 2= 1.2) operating at 250 MHz repetition rate. We demonstrate …

A simple, robust and compact pulse compressor for a high-repetition rate high-peak power
fiber chirped pulse amplification system is presented. We use noble-gas-filled hollow fibers …

We report the use of nonlinear compression in a very large mode-area rod-type photonic
crystal fiber. This fiber allows the use of high energy pulses in the few microjoule range. We …

We demonstrate a simple approach for broadening and compression of intense pulses at
megahertz repetition rates by self-phase modulation in nonlinear photonic crystal fibers. In …

We present simple and compact (1.5 mx 0.5 m footprint) post-compression of a state-of-the-
art fiber chirped pulse amplification system. By using two stage nonlinear compression in …

We demonstrate methods to increase the energy incident on hollow fibers for spectral
broadening by self-phase modulation. We used chirped pulses for spectral broadening …

We propose and demonstrate a pulse compression technique using a hollow fiber with a
pressure gradient. This technique improves the spatial and spectral qualities of femtosecond …

We report on the generation of 27 fs pulses with an average output power of 57 W and a
repetition rate of 78 MHz. The pulses are generated by combining a high average power …

We demonstrate that nonlinear fiber compression is possible at unprecedented average
power levels by use of a large-mode-area holey (microstructured) fiber and a passively …