Open AccessVSPIN: a new model relying on the vectorial description of the laser field for predicting the polarization dynamics of spin-injected V(e)CSELs
Author(s) -
Mehdi Alouini,
Julien Frougier,
Alexandre Joly,
Ghaya Baili,
Daniel Dolfi,
JeanMarie George
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.006739
Subject(s) - polarization (electrochemistry) , anisotropy , optics , laser , spin polarization , physics , polarization rotator , formalism (music) , birefringence , quantum mechanics , chemistry , art , musical , visual arts , electron
A new vectorial model (VSPIN) based on the Jones formalism is proposed to describe the polarization dynamics of spin injected V(e)CSELs. This general modelling framework accounts for spin injection effects as a gain circular dichroism in the active medium and provides guidelines for developing functional spin-controlled lasers. We investigate the detrimental role of phase anisotropy on polarization switching and show that it can be overcome by preparing the laser cavity to achieve efficient polarization switching under low effective spin injection. The VSPIN model predictions have been confirmed experimentally and explain the polarization behavior of spin-VCSELs reported in the literature.