Matching of group velocities in three-wave parametric interaction with femtosecond pulses and application to traveling-wave generators

Year: 1995

Authors: Di Trapani P., Andreoni A., Solcia C., Foggi P., Danielius R., Dubietis A., Piskarskas A.

Autors Affiliation: Istituto di Scienze Matematiche, Fisiche e Chimiche, University of Milano at Como, Como, 22100, Italy; Dipartimento di Elettronica, University of Pavia, Pavia, 27100, Italy; European Laboratory for Nonlinear Spectroscopy, University of Florence, Firenze, 50125, Italy; Laser Research Centre, Vilnius University, Vilnius, 2054, Lithuania

Abstract: The use of suitable noncollinear phase-matching configurations in type-I (e -oo) parametric interaction greatly improves the group-velocity matching among pump, signal, and idler pulses. A numerical model, well supported by the experiments, shows that the compensation of group-velocity mismatch can be achieved over the entire tuning range for pulses as short as few tens of femtoseconds. A general feature of the noncollinear interaction, the front tilt of the generated pulses, is experimentally investigated for a LiIO3 traveling-wave generator. A novel ß-barium borate traveling-wave parametric converter pumped with 130-fs blue pulses from a frequency-doubled amplified Ti: Sapphire system provides broad tunability in the visible with pulse durations as low as 90 fs and with a single-pass conversion efficiency as large as 40%.

Journal/Review: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

Volume: 12 (11)      Pages from: 2237  to: 2244

KeyWords: 2nd harmonic-generation; Phase
DOI: 10.1364/JOSAB.12.002237

Citations: 78
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