Title :
Wavelength conversion and pulse reshaping through cascaded interactions in an MZI configuration
Author :
Razzari, Luca ; Liberale, Carlo ; Cristiani, Ilaria ; Tediosi, Riccardo ; Degiorgio, Vittorio
Author_Institution :
Dipt. di Elettronica, Univ. degli Studi di Pavia, Italy
Abstract :
An optical wavelength converter based on second-order cascaded interactions in a waveguide is presented. The conversion mechanism relies on the combination of amplification and nonlinear dephasing of a signal field in the presence of a strong pump field at the phase-matching wavelength for second-harmonic generation. The considered scheme of the device is that of a Mach-Zehnder interferometer. The performance is numerically evaluated in the pulsed regime. A wide conversion bandwidth and high conversion efficiency is found. An operating regime can be found in which a significant reshaping of the output pulses, with respect to input pulses, can be observed.
Keywords :
Mach-Zehnder interferometers; optical harmonic generation; optical phase matching; optical pulse shaping; optical pumping; optical switches; optical waveguides; optical wavelength conversion; LiNbO3; MZI configuration; Mach-Zehnder interferometer; PPLN waveguide; amplification; high conversion efficiency; input pulses; nonlinear dephasing; operating regime; optical switch; optical wavelength converter; output pulses; phase-matching wavelength; pulse reshaping; pulsed regime; second-harmonic generation; second-order cascaded interactions; signal field; strong pump field; waveguide; wavelength conversion; wide conversion bandwidth; Nonlinear optical devices; Nonlinear optics; Optical interferometry; Optical pulses; Optical pumping; Optical waveguides; Optical wavelength conversion; Pulse amplifiers; Stimulated emission; Wavelength conversion;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2003.818310
