Controlling pattern formation and spatio-temporal disorder in nonlinear optics.
We present a feedback control method for the stabiliza- tion of unstable patterns and for the control of spatio-temporal disor- der. The control takes the form of a spatial modulation to the input pump, which is obtained via filtering in Fourier space of the output electric field. The control is powerful, exible and non-invasive: the feedback vanishes once control is achieved. We demonstrate by means of computer simulation, the effect of the control in two different optical systems.
Martin
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R
Oppo
G L
GL
Harkness
G
G
Scroggie
A
A
Firth
W
W