@Article{Supelec257,
author = {Angel Valle and Ignace Gatare and Krassimir Panajotov and Marc Sciamanna},
title = {{Transverse Mode Switching and Locking in Vertical-Cavity Surface-Emitting Lasers Subject to Orthogonal Optical Injection}},
journal = {IEEE Journal of Quantum Electronics},
year = {2007},
volume = {43},
number = {4},
pages = {322-333},
month = {apr},
url = {http://hal-supelec.archives-ouvertes.fr/hal-00207538/fr/},
doi = {10.1109/JQE.2007.893004},
abstract = {In this paper, we report on theoretical and experimental
investigation on polarization and transverse mode behavior of
vertical-cavity surface-emitting lasers (VCSELs) under orthogonal
optical injection as a function of the injection strength and of
the detuning between the injection frequency and the free-running
frequency of the solitary laser. As the injection strength
increases the VCSEL switches to the master laser polarization.We
find that the injection power necessary to obtain such
polarization switching is minimum at two different values of the
frequency detuning: the first one corresponds to the frequency
splitting between the two linearly polarized fundamental
transverse modes, and the second one appears at a larger positive
frequency detuning, close to the frequency difference between the
first-order and the fundamental transverse modes of the solitary
VCSEL. We show theoretically that both the depth and the
frequency corresponding to the second minimum increase when the
relative losses between the two transverse modes decrease.
Bistability of the polarization switching is obtained for the
whole frequency detuning range. Such a bistability is found for
the fundamental mode only or for both transverse modes, depending
on the value of the detuning. The theoretical and experimental
optical spectra are in good agreement showing that the
first-order transverse mode appears locked to the external injection.}
}