Title :
Polarization stabilization in vertical-cavity surface-emitting lasers through asymmetric current injection
Author :
Verschaffelt, G. ; van der Vleuten, W. ; Creusen, M. ; Smalbrugge, E. ; van de Roer, T.G. ; Karouta, F. ; Strijbos, R.C. ; Danckaert, J. ; Veretennicoff, I. ; Ryvkin, B. ; Thienpont, H. ; Acket, G.A.
Author_Institution :
Dept. of Appl. Phys. & Photonics, Vrije Univ., Brussels, Belgium
Abstract :
We present experimental evidence that asymmetric current injection in intracavity contacted vertical-cavity surface-emitting lasers (VCSELs) stabilizes the polarization of the emitted light. Anisotropies in the gain and loss mechanisms introduced by asymmetric current injection are considered to explain this effect. The design scheme opens perspectives to obtain actual polarization control in VCSELs.
Keywords :
distributed Bragg reflector lasers; laser beams; laser cavity resonators; laser modes; laser stability; light polarisation; molecular beam epitaxial growth; optical fabrication; optical losses; semiconductor lasers; surface emitting lasers; VCSELs; anisotropies; asymmetric current injection; design scheme; emitted light; gain mechanisms; intracavity contacted vertical-cavity surface-emitting lasers; loss mechanisms; polarization; polarization control; polarization stabilization; vertical-cavity surface-emitting lasers; Anisotropic magnetoresistance; Distributed Bragg reflectors; Gallium arsenide; Laser stability; Lighting control; Optical polarization; Photonics; Physics; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
