Static gain saturation in quantum dot semiconductor optical amplifiers.
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.
Institut fuer Festkoerperphysik, Technische Universitaet Berlin, EW 5-2, Hardenbergstr. 36, 10623 Berlin, Germany. chmeuer@sol.physik.tu-berlin.de
Christian
C
Meuer
Jungho
J
Kim
Matthias
M
Laemmlin
Sven
S
Liebich
Amir
A
Capua
Gadi
G
Eisenstein
Alexey R
AR
Kovsh
Sergey S
SS
Mikhrin
Igor L
IL
Krestnikov
Dieter
D
Bimberg
D000669:Amplifiers, Electronic; D016477:Artifacts; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D055095:Optics and Photonics / Q000295:instrumentation*; D045663:Quantum Dots; D012666:Semiconductors