作者: J. M. Soto-Crespo , Nail Akhmediev
DOI: 10.1103/PHYSREVE.66.066610
关键词: Pulse generator 、 Laser 、 Quantum electrodynamics 、 Numerical analysis 、 Swift–Hohenberg equation 、 Mathematical model 、 Soliton 、 Quantum mechanics 、 Pulse (physics) 、 Physics 、 Quintic function
摘要: The complex quintic Swift-Hohenberg equation (CSHE) is a model for describing pulse generation in mode-locked lasers with fast saturable absorbers and complicated spectral response. Using numerical simulations, we study the single- two-soliton solutions of (1+1)-dimensional equations. We have found that several types stationary moving composite solitons this are generally stable wider range existence than those Ginzburg-Landau equation. also CSHE has variety localized solutions. In particular, there three soliton pairs pi pi/2 phase difference different fixed separations between pulses. Different can be generated by changing parameter corresponding to nonlinear gain (epsilon).