Title :
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
fDate :
5/1/2005 12:00:00 AM
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;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2005.845354
