Composite solitons and two-pulse generation in passively mode-locked lasers modeled by the complex quintic Swift-Hohenberg equation.

作者: J. M. Soto-Crespo , Nail Akhmediev

DOI: 10.1103/PHYSREVE.66.066610

关键词: Pulse generatorLaserQuantum electrodynamicsNumerical analysisSwift–Hohenberg equationMathematical modelSolitonQuantum mechanicsPulse (physics)PhysicsQuintic 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).

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