Tuning of the critical feedback level in 1.55-μm quantum dash semiconductor laser diodes

Frédéric Grillot (1, 2) , Nader A. Naderi (1) , Mike Pochet (1, 3) , Chang-Yi Lin (1) , Pascal Besnard (2) , Luke F. Lester (1)

1 CHTM - Center for High Technology Materials
2 FOTON - Fonctions Optiques pour les Technologies de l'informatiON
3 AFRL - Air Force Research Laboratory

The onset of the coherence collapse (CC) regime, which is incompatible with data transmission, is investigated both theoretically and experimentally in a 1.55-um InAs/InP quantum dash semiconductor laser. It is numerically shown that the filling from the excited state produces an additional term, which accelerates the route to chaos. This contribution can be seen as a perturbation that reduces the overall CC threshold.

Mots clés: Optical feedback; Coherence collapse; Quantum wells; Quantum dashes; Linewidth enhancement factor; Chaos; Semiconductor lasers

Domaines: Optique [physics.optics]; Optique / photonique

Frédéric Grillot, Nader A. Naderi, Mike Pochet, Chang-Yi Lin, Pascal Besnard, et al.. Tuning of the critical feedback level in 1.55-μm quantum dash semiconductor laser diodes. IET Optoelectronics, 2009, 3 (6), pp.242-247. ⟨10.1049/iet-opt.2009.0037⟩. ⟨hal-00501877⟩