Graduate School in Nonlinear Science

Sponsored by the Danish Research Academy

Pattern Formation and Control in Nonlinear Optical Systems.

by J.V. Moloney
Arizona Center for Mathematical Sciences
University of Arizona, Tucson

Thursday, June 18, 1998 14:15 h
at MIDIT, Building 305 room 027

MIDIT-seminar No. 408

Abstract: Patterns form spontaneously immediately past the first threshold in wide aperture lasers. Near the Hopf bifurcation in these spatially extended systems, the patterns can be described by universal order parameter equations.
Criteria for their stability can be derived. In wide aperture semiconductors lasers, the solutions are nowhere stable. We will also discuss a novel spatial/spectral filtering control scheme which is capable of stabilizing and steering the laser output.