Generation of High-Order Group-Velocity-Locked Vector Solitons

We report numerical simulations on the high-order group-velocity-locked vector soliton (GVLVS) generation based on the fundamental GVLVS. The high-order GVLVS generated is characterized with a two-humped pulse along one polarization and a single-humped pulse along the orthogonal polarization. The phase difference between the two humps could be 180° It is found that, by appropriately setting the time separation between the two components of the fundamental GVLVS, the high-order GVLVS with different pulsewidth and pulse intensity could be obtained. Either type “1+2” or “2+2” high-order GVLVS could be obtained.