Author:
Englebert Nicolas,Gray Robert M.,Sekine Ryoto,Zacharias Thomas,Ledezma Luis,Zhou Selina,Arabi Carlos Mas,Gorza Simon-Pierre,Leo François,Marandi Alireza
Abstract
We experimentally observe signatures of 475-fs-long sech-squared-shaped solitons in a ps-pumped phase-mismatched parametric oscillator in the normal dispersion regime, purely due to cascaded quadratic nonlinearities. The results are in good agreement with our theoretical predictions.