Fig. 4: Simulation results.
a Simulated optical spectrum. b Comparison of theoretical prediction and simulation result of secondary soliton pulse profile exponent γ versus second-order dispersion parameter D2,s. c Comparison of theoretical prediction and simulation result of secondary soliton central mode shift Δμs versus FSR mismatch ΔD1,s/2π. d Existence range of secondary soliton. Secondary soliton powers at different pump detunings δωp and FSR mismatches are plotted
