Title :
Influence of Noise on the Signal Quality of Quantum-Dot Semiconductor Optical Amplifiers
Author :
Wilkinson, S. ; Lingnau, B. ; Korn, Julian ; Scholl, Eckehard ; Ludge, K.
Author_Institution :
Sch. of Phys. & Astron., Univ. of Southampton, Southampton, UK
Abstract :
We use a semiconductor optical Bloch equation approach combined with a traveling wave equation for the electric field to explore the effect of noise on the signal quality of a quantum-dot(QD) semiconductor optical amplifier. Using a stochastic white noise source for the spontaneous emission inside the QDs, we can show that there is a tradeoff between amplification performance and signal quality. Nevertheless, optimized operation conditions exist and are discussed for various input signals.
Keywords :
laser noise; quantum dot lasers; semiconductor optical amplifiers; spontaneous emission; stochastic processes; white noise; amplification performance; electric field; input signal; noise effect; optimized operation condition; quantum-dot semiconductor optical amplifiers; semiconductor optical Bloch equation approach; signal quality; spontaneous emission; stochastic white noise source; traveling wave equation; Mathematical model; Noise; Optical noise; Optical pulses; Optical pumping; Quantum dots; Stimulated emission; Noise; quantum dots (QDs); semiconductor optical amplifiers (SOAs);
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2012.2233464
