Optical Memory and Neural Networks

, Volume 20, Issue 1, pp 76–83

Symmetry breaking phenomena in vector-field lasers



Polarization and phase symmetry breaking phenomena have been studied on the basis of elaborated and experimentally tested mathematical models of gas class A lasers. It is shown that, polarization symmetry breaking appears in a single-mode linear laser: for stationary regime—at the transition from the isotropic to an anisotropic cavity and destruction of the laser modes degeneracy; for periodical regime—in the presence of a sinusoidal longitudinal magnetic field on the active medium. Spontaneous phase symmetry breaking occurs in a single-mode ring laser at the transition from the running-wave to a standing-wave operation. For periodical regime this phenomenon can be accompanied by the appearance of deterministic and noise-induced chaos.


anisotropic-cavity laser symmetry-breaking bifurcations deterministic and noise-induced chaos 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Zheludev, N.I., Polarization Instability and Multistability in Nonlinear Optics, Usp. Fiz. Naauk, 1989, vol. 157, pp. 683–717.CrossRefGoogle Scholar
  2. 2.
    Svirina, L.P., Polarization Symmetry Breaking and Restoration in Vector-Field Lasers, J. Opt. B: Quantum Semiclass. Opt., 2001, vol. 3, pp. S133–S138.CrossRefGoogle Scholar
  3. 3.
    Svirina, L.P., Phase Instability in a Four-Frequency Anisotropic-Cavity Ring Gas Laser, Quant. Electron., 2008, vol. 38, pp. 1–15.CrossRefGoogle Scholar

Copyright information

© Allerton Press, Inc. 2011

Authors and Affiliations

  1. 1.Belarussian National Technical UniversityMinskBelarus

Personalised recommendations