Title :
Tuning of the critical feedback level in 1.55-μm quantum dash semiconductor laser diodes
Author :
Grillot, F. ; Naderi, Nader A. ; Pochet, M. ; Lin, Chun-Yu ; Besnard, P. ; Lester, L.F.
Author_Institution :
Center for High Technol. Mater., Albuquerque, NM, USA
Abstract :
The onset of the coherence collapse (CC) regime, which is incompatible with data transmission, is investigated both theoretically and experimentally in a 1.55-μm 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.
Keywords :
III-V semiconductors; excited states; indium compounds; laser feedback; laser tuning; light coherence; optical chaos; quantum dash lasers; InAs-InP; chaos; coherence collapse; critical feedback level tuning; data transmission; excited state; perturbation; quantum dash semiconductor laser diodes; wavelength 1.55 μm;
Journal_Title :
Optoelectronics, IET
DOI :
10.1049/iet-opt.2009.0037
