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SUMMARY:Asymmetric optical nonlinear pulses - Sergei Turitsyn (Aston Unive
 rsity)
DTSTART:20221021T130000Z
DTEND:20221021T133000Z
UID:TALK182612@talks.cam.ac.uk
DESCRIPTION:S.K. Turitsyn\, A. Bednyakova and E.V. Podivilov\, Asymmetric 
 optical nonlinear pulses.\nCoherent nonlinear solitary wave optical struct
 ures\, such as solitons\, self-similar parabolic pulses\, dissipative soli
 tons play important role in various applications.&nbsp\; In this talk I wi
 ll intoduce basic generic model governing optical pulse propagation in a n
 onlinear dispersive amplifying medium with asymmetric gain. The key proper
 ties of the model and the results of numerical modeling will be discussed.
 &nbsp\; In a quasi-classical limit some solutions of the introduced model 
 can be described by the simplified system of equations that is a modificat
 ion of the well-known one-dimensional shallow water equations.&nbsp\; &nbs
 p\;Our theory and numerical simulations provide insight into the nature of
  stable asymmetric pulse capable to accumulate large nonlinear phase witho
 ut wave-breaking beyond the paabolic pulse approximation.
LOCATION:Seminar Room 1\, Newton Institute
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