Optical parametric generation of nearly transform-limited mid-infrared pulses in dispersion-engineered nonlinear waveguides.
Optical parametric generation in dispersion-engineered waveguides fabricated by proton exchange in periodically poled lithium niobate is numerically investigated as a means for producing widely tunable mid-infrared ultrashort pulses starting from low energy pump pulses at a 1.55 microm wavelength and with 100 fs duration, which are typical parameters of amplified Er-fiber oscillators. Numerical evidence is given about the generation of sub-100 fs nearly transform-limited pulses in the 2.4-4.4 microm spectral range.
Marangoni
Marco
M
Departamento di Fisica, Politecnico di Milano, IFN-CNR, Piazza L. Da Vinci 32, Milan, Italy. marco.marangoni@polimi.it
Lobino
Mirko
M
Ramponi
Roberta
R