Dissipative soliton in a laser cavity: A novel concept in action

Abstract

International audienceThe recent concept of a dissipative optical soliton sheds new light for understanding the stability of optical pulses that are generated in passively mode-locked lasers. Considering in these lasers the multiple pulsing regime of operation, the dissipative soliton concept is able to explain the great diversity of interaction behaviours that have been observed experimentally. Among the most spectacular behaviours are the formation of "soliton molecules" and "elastic-type" collisions. The dissipative soliton also explains the existence of complex limit cycles of pulsations within single pulse operation

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

“…The soliton Newton’s cradle can be achieved in a limited range of parameters in the microresonator-filtered fiber lasers, among many other possibilities for collision between three solitons 36 . In our case, the soliton molecule with non-zero binding energy is mainly attributed to the soliton interaction mediated by the coexisting CW component 53 , 55 , 61 .…”

“…Finally, by taking advantage of an ultrahigh-speed time magnifier, we study the realtime dynamics of soliton formation and interaction with coexisting continuous-wave (CW) components in microresonator-filtered fiber lasers. We observe soliton Newton's cradle, where a single soliton elastically collides with a soliton molecule [35][36][37] , akin to macro-objects [38][39][40] . Our study will benefit the design of the novel, highefficiency and self-starting microcombs for real-world applications.…”

On solutions of a Boussinesq-type equation with displacement-dependent nonlinearity: A soliton doublet

“…The forced Korteweg-deVries (KdV) system [39] as well as the hierarchical KdV-type systems [40] may lead to solitonic structures or soliton ensembles. Recently the doublets are described in laser systems [41], in Heisenberg ferromagnetic model [42], fibre Bragg gratings [43], etc. It seems that like in the present case, the nonlinearities play a decisive role in forming the doublets (cf.…”