J. Arnaud

IEEE Journal of Quantum Electronics, vol QE-21, n°6, juin 1985

ABSTRACT

In a mode matched configuration, spontaneous emission in semiconductor laser amplifier sis enhanced by a factor which is larger that unity but which is significantly smaller than the K-factor calculated by Petermann. Using thin-slab model, we find that in typical situations, the factor is about K/2.

LIEN VERS  L’ARTICLE : SPONTANEOUS EMISSION IN SEMICONDUCTOR LASER AMPLIFIERS

Jacques Arnaud

Electronic Letters Vol 21, n°12, juin 1985

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 + α2 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.

LIEN VERS  L’ARTICLE : ROLE OF PETERMANN’S K-FACTOR IN SEMICONDUCTOR LASER OSCILLATORS