Title :
Spin controlled optically pumped vertical cavity surface emitting laser
Author :
Hovel, S. ; Gerhardt, Nathan ; Hofmann, Martin ; Yang, Jian ; Reuter, D. ; Wieck, A.
Author_Institution :
Ruhr-Univ. Bochum, Germany
fDate :
3/3/2005 12:00:00 AM
Abstract :
It is shown that the output polarisation of optically pumped vertical cavity surface emitting lasers (VCSELs) can be unambiguously controlled by the pump polarisation. The degree of the output polarisation is higher than that of the pump polarisation. It is concluded that the polarisation of VCSELs with spin polarised electrical pumping can be controlled even with low spin injection efficiencies.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; light polarisation; optical pumping; quantum well lasers; surface emitting lasers; GaInAs; VCSELs; low spin injection efficiencies; output polarisation; pump polarisation; spin controlled optically pumped vertical cavity surface emitting laser; spin polarised electrical pumping;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20057675
