Fast self-pulsing through nonlinear incoherent feedback.
We consider a double-pass ring cavity with nonlinear incoherent optical feedback and analyze its response when it is driven by a continuous laser beam. This particular cavity is equivalent, in the temporal domain, to a simple spatial-pattern-generating system made from a Kerr slice and a feedback mirror. After formulating the evolution equations, we investigate the behavior of small-amplitude solutions and obtain an expression for the round-trip gains. We then explore the important effect of dispersion in the nonlinear medium. Finally, we show that stable modes are possible by solving numerically the full nonlinear equations.
Service d'Optique et Acoustique, Université Libre de Bruxelles, CP194/5, 50, Avenue F. D. Roosevelt, B-1050 Bruxelles, Belgium. pascal.kockaert@ulb.ac.be
Pascal
P
Kockaert
Cyril
C
Cambournac
Marc
M
Haelterman
Gregory
G
Kozyreff
Thomas
T
Erneux