Fig. 4: Experimental generation of platicon.
From: Dissipative quadratic soliton in the cascaded nonlinearity limit
a Output average power of the FF and SH as a function of normalized detuning \({\Delta }_{1}={\delta }_{1}/{\alpha }_{1}\). b Optical spectra of the platicon at the FF with different normalized detunings. c Optical spectra of the platicon at the SH with different normalized detunings. d RF spectra of the platicon at the FF (top) and SH (bottom) in state I with a normalized detuning of 5.7. The identical repetition rates of the FF and SH confirm the mutual trapping of the dual-color platicon. e–g The effect of GVM on the optical spectrum at the FF and SH as well as the corresponding simulated temporal profiles. e GVM of 0 fs/mm and \({\Delta }_{1}\) of 7.0; f GVM of 5.5 fs/mm and \({\Delta }_{1}\) of 6.8; (g) GVM of 11 fs/mm and \({\Delta }_{1}\) of 6.2. h–j The effect of phase mismatch on the optical spectrum at the FF and SH. The third column shows the corresponding simulated temporal profiles. h \(\xi\) of 1.5π and \({\Delta }_{1}\) of 6.6; (i) \(\xi\) of 2.0π and \({\Delta }_{1}\) of 7.0; (j) \(\xi\) of 2.4π and \({\Delta }_{1}\) of 5.5.
