Open AccessSelf compression of Yb-doped solid-state lasers by combination of self-phase modulation and group-velocity dispersion in KDP crystal
Author(s) -
Tetsuo Harimoto,
Koichi Yamakawa
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.015438
Subject(s) - materials science , optics , laser , pulse compression , group velocity , dispersion (optics) , self phase modulation , crystal (programming language) , phase (matter) , solid state laser , phase modulation , doping , modulation (music) , optoelectronics , nonlinear optics , physics , telecommunications , phase noise , radar , quantum mechanics , computer science , programming language , acoustics
We propose and evaluate numerically the self compression for Yb-doped solid-state laser pulses in a KDP crystal by the combination of the group-velocity dispersion and the self-phase modulation. The self compression is achievable as the group-velocity-dispersion coefficient of KDP crystals is negative around a 1-mum wavelength. Numerical results showed that the laser pulse in the range 50-200 fs can be compressed as short as 12.8 fs. This self-compression method is simple and low cost, which is possible to be applied to an Yb-doped solid-state laser system with a large-scale beam and an ultrahigh intensity in the regime of tens of femotoseconds.