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.
Meuer
Christian
C
Institut fuer Festkoerperphysik, Technische Universitaet Berlin, EW 5-2, Hardenbergstr. 36, 10623 Berlin, Germany. chmeuer@sol.physik.tu-berlin.de
Kim
Jungho
J
Laemmlin
Matthias
M
Liebich
Sven
S
Capua
Amir
A
Eisenstein
Gadi
G
Kovsh
Alexey R
AR
Mikhrin
Sergey S
SS
Krestnikov
Igor L
IL
Bimberg
Dieter
D
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