Topological insight into the non-arrhenius mode hopping of semiconductor ring lasers.
We investigate both theoretically and experimentally the stochastic switching between two counterpropagating lasing modes of a semiconductor ring laser. Experimentally, the residence time distribution cannot be described by a simple one-parameter Arrhenius exponential law and reveals the presence of two different mode-hop scenarios with distinct time scales. In order to elucidate the origin of these two time scales, we propose a topological approach based on a two-dimensional dynamical system.
Department of Applied Physics and Photonics, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.
S
S
Beri
L
L
Gelens
M
M
Mestre
G
G
Van der Sande
G
G
Verschaffelt
A
A
Scirè
G
G
Mezosi
M
M
Sorel
J
J
Danckaert