Title :
Role of Petermann´s K-factor in semiconductor laser oscillators
Author_Institution :
USTL, Equipe de Microoptoélectronique de Montpellier, Unité associée au CNRS, Montpellier, France
Abstract :
The theory presented indicates that when the active region of a semiconductor laser is very thin the linewidth enhancement factor differs significantly from Henry´s 1 + ¿2 factor and can be reduced by a factor of 4. Petermann´s K-factor may also play a role in the plane perpendicular to the junction.
Keywords :
laser theory; semiconductor junction lasers; spectral line breadth; K-factor; linewidth enhancement factor; semiconductor laser; very thin active region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850380
