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Soft turbulence in multimode laser

Soft turbulence in multimode laser
Soft turbulence in multimode laser
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.
1050-2947
751-760
Casini, D.
e9a17171-7953-4062-a701-aca3324aa2bd
D'Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Politi, A.
f7829ade-89f3-4ead-b3ad-ecfb3889018d
Casini, D.
e9a17171-7953-4062-a701-aca3324aa2bd
D'Alessandro, G.
bad097e1-9506-4b6e-aa56-3e67a526e83b
Politi, A.
f7829ade-89f3-4ead-b3ad-ecfb3889018d

Casini, D., D'Alessandro, G. and Politi, A. (1997) Soft turbulence in multimode laser. Physical Review A, 55 (1), 751-760. (doi:10.1103/PhysRevA.55.751).

Record type: Article

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.

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Published date: 1997

Identifiers

Local EPrints ID: 29296
URI: http://eprints.soton.ac.uk/id/eprint/29296
DOI: doi:10.1103/PhysRevA.55.751
ISSN: 1050-2947
PURE UUID: eb6f7a03-9030-460b-89dd-d185e30bc5ff
ORCID for G. D'Alessandro: ORCID iD orcid.org/0000-0001-9166-9356

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Date deposited: 12 Mar 2007
Last modified: 16 Mar 2024 02:48

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Contributors

Author: D. Casini
Author: G. D'Alessandro ORCID iD
Author: A. Politi

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