Open AccessDynamic behavior of an injection-locked quantum-dash Fabry-Perot laser at zero-detuning
Author(s) -
M. Pochet,
Nader Naderi,
Nathan B. Terry,
Vassilios Kovanis,
L. F. Lester
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.020623
Subject(s) - laser linewidth , laser , physics , optics , semiconductor laser theory , fabry–pérot interferometer , photonics , quantum dot laser , atomic physics , optoelectronics
This work investigates the behavior of a zero-detuned optically-injected quantum-dash Fabry-Perot laser as the injected field ratio is increased from near-zero to levels resulting in stable locking. Using a normalized model describing optically-injected semiconductor lasers, variations in the slave laser's free-running characteristics are shown to have a strong impact on the coupled system's behavior. The theoretical model is verified experimentally using a high resolution spectrometer. It is found that the quantum-dash laser has the technological advantage of a low linewidth enhancement factor at low bias currents that suppresses undesirable Period-2 and chaotic behavior. Such observations suggest that optically-injected quantum-dash lasers can be used as an enabling component for tunable photonic oscillators.