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

fYear

2010

fDate

14-16 Dec. 2010

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2010

Conference_Location

Singapore

Print_ISBN

978-1-4244-9882-6

Type

conf

DOI

10.1109/PGC.2010.5706036

Filename

5706036