Numerical and theoretical analysis of the crosstalk in linear optical amplifiers

Author

Jin, Chao-Yuan ; Huang, Yong-Zhen ; Yu, Li-Juan ; Deng, Sheng-Ling

Author_Institution

State Key Lab. on Integrated Optoelectron., Chinese Acad. of Sci., Beijing, China

Volume

41

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

636

Lastpage

641

Abstract

The dynamic characteristics, including the crosstalk and relaxation oscillation, of linear optical amplifiers (LOAs) are investigated by small-signal analysis under an averaging carrier density approximation and compared with the results of numerical simulation. The good agreement between the numerical simulation and the small-signal analysis indicated the averaging carrier density is an appropriate approximation for analyzing LOAs. Theoretical analyzes also show that the dynamic properties of the vertical laser fields dominate the dynamic performance of LOAs. Based on the small-signal analysis, a concise equation for the crosstalk under high bit rate was derived, which can be applied to measure the differential gain of LOAs.

Keywords

laser theory; optical crosstalk; semiconductor device models; semiconductor optical amplifiers; averaging carrier density; carrier density approximation; differential gain; linear optical amplifiers; optical crosstalk; relaxation oscillation; semiconductor optical amplifier; small-signal analysis; vertical laser fields; Bit rate; Charge carrier density; Differential equations; Laser theory; Numerical simulation; Optical amplifiers; Optical crosstalk; Performance analysis; Semiconductor optical amplifiers; Stimulated emission; Crosstalk; linear optical amplifier (LOA); relaxation oscillation; semiconductor optical amplifier (SOA); small-signal analysis;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2005.845354

Filename

1424245