Ultrashort Optical Pulse Propagation in terms of Analytic Signal

Figure 2

Density plots of the spectral evolution for (a) 𝑡₀=100 fs pulse with typical signature of the modulation instability, (b) 𝑡₀=50 fs, and (c) 𝑡₀=10 fs pulses generating SC by soliton fission. The spectra are shown in logarithmic scale (dB).

(a)

(b)

(c)