Open AccessStatic gain saturation in quantum dot semiconductor optical amplifiers
Author(s) -
C. Meuer,
Jungho Kim,
M. Laemmlin,
S. Liebich,
Amir Capua,
G. Eisenstein,
A. R. Kovsh,
S. S. Mikhrin,
I. L. Krestnikov,
D. Bimberg
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.008269
Subject(s) - quantum dot , optical amplifier , saturation (graph theory) , excited state , amplified spontaneous emission , physics , optics , quantum dot laser , rate equation , wavelength , spectral hole burning , spontaneous emission , optical pumping , semiconductor , optoelectronics , amplifier , materials science , semiconductor laser theory , atomic physics , quantum mechanics , laser , mathematics , cmos , combinatorics , kinetics
Measurements of saturated amplified spontaneous emission-spectra of quantum dot semiconductor optical amplifiers demonstrate efficient replenishment of the quantum-dot ground state population from excited states. This saturation behavior is perfectly modeled by a rate equation model. We examined experimentally the dependence of saturation on the drive current and the saturating optical pump power as well as on the pump wavelength. A coherent noise spectral hole is observed with which we assess dynamical properties and propose optimization of the SOA operating parameters for high speed applications.