Title :
Close-form solutions for the gain and refractive index of multiple-state quantum-dot semiconductor optical amplifiers
Author :
Guo, Xiaotao ; Yu, Zhongyuan ; Liu, Yumin ; Li, Xin
Author_Institution :
Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
Close-form solutions for the gain and refractive index of quantum-dot semiconductor optical amplifiers (QD-SOAs) are derived. The basic formulas are derived from rate equations of multiple-states QD-SOAs. The close-form solution for the gain is improved from previous work, and is in good accordance with numerical results when the power of inputted signal is in a larger range. The close-form solution for the refractive index indicates that the change of the refractive index will reach the maximum value at a certain inputted power, and is also in good accordance with numerical results. These works have been a significant basic work for the gain dynamic and phase dynamic in QD-SOAs.
Keywords :
optical communication equipment; refractive index; semiconductor optical amplifiers; semiconductor quantum dots; close-form solutions; gain dynamics; gain index; multiple-state quantum-dot semiconductor optical amplifiers; phase dynamics; rate equations; refractive index; Mathematical model; Numerical models; Photonics; Quantum dot lasers; Quantum dots; Refractive index; Semiconductor optical amplifiers;
Conference_Titel :
Photonics Global Conference (PGC), 2010
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9882-6
DOI :
10.1109/PGC.2010.5706036
