Title :
Broad-bandwidth parametric amplification in the visible: femtosecond experiments and simulations
Author :
Gale, G.M. ; Hache, F. ; Cavallari, M.
Author_Institution :
Lab. d´´Opt. Quantique, Ecole Polytech., Palaiseau, France
Abstract :
A general geometric condition, involving group velocities, for large bandwidth parametric amplification with all types of phase-matching and in certain wavelength ranges is derived. This condition has been exploited to produce visible widely tunable sub-20-fs pulses from an optical parametric oscillator and an optical parametric amplifier based on β-barium borate (BaB2O4) pumped in the blue. These results are interpreted in terms of a modified soliton model for the optical parametric oscillator (OPO) and detailed numerical simulations for both devices
Keywords :
barium compounds; high-speed optical techniques; optical materials; optical parametric amplifiers; optical parametric oscillators; optical solitons; β-barium borate; 20 fs; BaB2O4; broad-bandwidth optical parametric amplification; femtosecond experiments; geometric condition; group velocities; large bandwidth parametric amplification; modified soliton model; numerical simulations; optical parametric amplifier; optical parametric oscillator; phase-matching; visible; visible widely tunable sub-fs pulses; wavelength ranges; Bandwidth; Frequency conversion; Geometrical optics; Nonlinear optics; Optical frequency conversion; Optical pumping; Optical solitons; Oscillators; Pulse amplifiers; Stimulated emission;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.686727
