National Natural Science Fund Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [61805115, 61875132, 61606166]; Natural Science Foundation of Hunan provinceNatural Science Foundation of Hunan Province [2019JJ50530]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2019M653019]
机构署名：
本校为其他机构
院系归属：
电气工程学院
摘要：
We investigate the impact of the spatial beam oscillations in a graded-index multimode fiber (MMF) upon the trapping and blue-shifting of dispersive pulses by a multimode soliton. We find that the dispersive pulses trapped by solitons can be controlled through adjusting the degree of compression of the spatial beam. This can provide an explanation for the enhanced blue spectral extension observed in the typical supercontinuum generation in graded-index MMFs. Besides, the spatial-temporal nonlinear effect may provide an additional degree of free...
