Title :
Polarization stability of phase-locked arrays of vertical-cavity surface-emitting lasers
Author :
Sopra, F.M. ; Moser, M. ; Brunner, M. ; Willemsen, M.B. ; van Exter, M.P. ; Kapon, E.
Author_Institution :
Avalon Photonics Ltd., Zurich, Switzerland
Abstract :
The polarization stability of the fundamental lasing super-mode obtained from coherently coupled arrays of vertical-cavity surface-emitting lasers has been investigated. Various devices have been analyzed and none showed the abrupt change of the polarization direction (flip) often observed in solitary devices. This polarization stability is due to a current independent dichroism of 0.5 GHz.
Keywords :
dichroism; laser mode locking; laser stability; light polarisation; semiconductor laser arrays; surface emitting lasers; VCSEL; coherently coupled arrays; current independent dichroism; fundamental lasing super-mode; phase-locked arrays; polarization direction; polarization stability; solitary devices; vertical-cavity surface-emitting lasers; Gallium arsenide; Laser stability; Optical arrays; Optical polarization; Phased arrays; Power generation; Reflectivity; Samarium; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
