@InProceedings{Supelec409,
author = {Ignace Gatare and Marc Sciamanna and Michel Nizette and Hugo Thienpont and Krassimir Panajotov},
title = {{Excitation of a two-mode limit cycle dynamics on the route to polarization switching in a VCSEL subject orthogonal to optical injection}},
year = {2008},
booktitle = {{Proceedings of SPIE : Semiconductor Lasers and Laser Dynamics III}},
volume = {6997},
number = {13},
pages = {1-10},
month = {apr},
address = {Strasbourg (France)},
url = {http://dx.doi.org/10.1117/12.781445},
doi = {10.1117/12.781445},
abstract = {We experimentally and numerically report on polarization
switching (PS) mechanism which involves a two-mode limit cycle
dynamics in a vertical-cavity surface-emitting laser (VCSEL)
subject to orthogonal optical injection from a master laser (ML).
The VCSEL (slave laser, SL) emits a horizontal linearly polarized
(LP) fundamental mode, without optical injection. The VCSEL is
injected by a vertically polarized light from ML. Dynamical
characteristics of the VCSEL are investigated as a function of
optical injection parameters, i.e., injection strength and
frequency detuning between master and slave lasers. We
experimentally resolve an injection parameter region for which,
as the injection strength is increased for fixed detunings, a
limit cycle dynamics in both non-injected and injected modes is
abruptly excited. For larger injection strengths, the VCSEL
switches from the two-mode to a single-mode limit cycle dynamics
which involves only the injected mode. Using continuation
methods, we numerically identify two torus bifurcation
mechanisms, namely TR1 and TR2, which support such a switching
scenario. We show that both TR1 and TR2 originate from a
particular Hopf bifurcation which plays a key role in the
polarization dynamics of the injected VCSEL. Furthermore, our
results reveal that the newly observed switching dynamics are
generic features of VCSEL two-mode systems.}
}