Generation of above-terawatt 1.5-cycle visible pulses at 1 kHz by post-compression in a hollow fiber
Generation of above-terawatt 1.5-cycle visible pulses at 1 kHz by post-compression in a hollow fiber
We report on the generation of 6.1 mJ, 3.8 fs pulses by the compression of a kilohertz Ti:sapphire laser in a large-aperture long hollow fiber. In order to find optimal conditions for spectral broadening at high pulse energies, we explore different parameter ranges where ionization or the Kerr effect dominates. …