Multimode soliton evolution in GRIN fiber 2

Simulation results of temporal field evolution and spectral evolution of total field, mode 1, and the remaining 14 modes vs. input pulse energy for different propagation distances in graded-index fiber with 50 μm diameter, under the condition of an input Gaussian beam width r_w=2.8 and center offset r_s = 0.5.
Details can be seen in the paper:
doi.org/10.48550/arXiv.2202.0...