Emergence of resonant mode-locking via delayed feedback in quantum dot semiconductor lasers.
Opt Express
; 24(4): 4239-46, 2016 Feb 22.
Article
em En
| MEDLINE
| ID: mdl-26907071
ABSTRACT
With conventional semiconductor lasers undergoing external optical feedback, a chaotic output is typically observed even for moderate levels of the feedback strength. In this paper we examine single mode quantum dot lasers under strong optical feedback conditions and show that an entirely new dynamical regime is found consisting of spontaneous mode-locking via a resonance between the relaxation oscillation frequency and the external cavity repetition rate. Experimental observations are supported by detailed numerical simulations of rate equations appropriate for this laser type. The phenomenon constitutes an entirely new mode-locking mechanism in semiconductor lasers.
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MEDLINE
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article