Controlled optical structures in a nonlinear system involving the suppression of low spatial frequencies in the feedback loop

Journal Article · Mon Jul 31 00:00:00 EDT 2000 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2000V030N07ABEH001777· OSTI ID:21442733

Nikolaev, I P; Larichev, A V ^[1]; Shmalgauzen, V I ^[2]

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1. International Laser Center, M. V. Lomonosov Moscow State University, Moscow (Russian Federation)
2. Department of Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)

A nonlinear optical system with spatially distributed feedback was studied both theoretically and experimentally. The phase-to-intensity transformation in this system was performed by a spatial filter capable of suppressing low spatial frequencies. Hard excitation of stationary spatial structures observed in this system was explained by an analysis of the phase space structure of the amplitude equations. The developed theoretical approach, which uses a step-function approximation of the steady-state solution, allows one to determine the main quantitative characteristics of the generated structures. The basic properties of the response of the system to external perturbations with various symmetries were investigated experimentally. The obtained experimental data qualitatively agree with the results of the theoretical analysis. (nonlinear optical phenomena and devices)

• OSTI ID: 21442733
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 30, Issue 7; Other Information: DOI: 10.1070/QE2000v030n07ABEH001777; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
APPROXIMATIONS
DISTURBANCES
EXCITATION
EXPERIMENTAL DATA
FEEDBACK
MATHEMATICAL SOLUTIONS
NONLINEAR OPTICS
NONLINEAR PROBLEMS
OPTICAL SYSTEMS
PHASE SPACE
STEADY-STATE CONDITIONS
CALCULATION METHODS
DATA
ENERGY-LEVEL TRANSITIONS
INFORMATION
MATHEMATICAL SPACE
NUMERICAL DATA
OPTICS
SPACE