6533b7dafe1ef96bd126e08c

RESEARCH PRODUCT

Second-order optical phase transition in a semilinear photorefractive oscillator with two counterpropagating pump waves

Pierre MatheySerguey OdoulovP. JullienO. Shinkarenko

subject

PhysicsPhase transitionOscillationPhysics::OpticsStatistical and Nonlinear PhysicsPhotorefractive effectGratingAtomic and Molecular Physics and OpticsOptical pumpingQuantum electrodynamicsQuantum mechanicsPhase conjugationDiffraction gratingRefractive index

description

Soft-mode onset of coherent oscillation is revealed in a semilinear cavity with two counterpropagating pump waves. From the dynamics of the oscillation intensity and the dynamics of the grating decay with the feedback applied, critical behavior is detected: Both the characteristic time of oscillation onset and grating decay time go to infinity exactly at the threshold coupling strength. A conclusion is made about the similarity of this type of oscillator to the second-order phase transition.

yearjournalcountryeditionlanguage
2002-03-01Journal of the Optical Society of America B
https://doi.org/10.1364/josab.19.000405