Soft turbulence in multimode lasers

D Casini, G DAlessandro, A Politi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Using a weakly nonlinear analysis, we study the behavior of a homogeneously broadened laser in the vicinity of the second threshold. We show that the dynamics is described by a complex Ginzburg-Landau equation coupled to a Fokker-Plank equation. Although the cubic term of the Ginzburg-Landau equation is destabilizing for all parameter values, bounded solutions exist because of the strong nonlinear dispersion (''dispersive chaos''). A careful numerical study of the original Maxwell-Bloch equations is also carried out to investigate the role played by off-resonant solutions.

Original languageEnglish
Pages (from-to)751-760
Number of pages10
JournalPhysical Review A
Volume55
Issue number1
Publication statusPublished - Jan 1997

Keywords

  • BROADENED RING LASER
  • INSTABILITIES

Cite this