Title :
A dispersion management scheme for reducing SOA-induced crosstalk in WDM links
Author :
Xu, Shuangmei ; Khurgin, Jacob B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Johns Hopkins Univ., Baltimore, MD, USA
Abstract :
The penalty imposed on the multichannel wavelength-division multiplexing (WDM) link employing cascaded semiconductor optical amplifiers (SOAs) caused by the cross-gain modulation (XGM) in the SOAs is analyzed and shown to depend on the dispersion management scheme utilized in the link. Based on the results of the analysis, a novel dispersion management scheme is proposed to prevent the repetition of the bit patterns at each SOA stage. Numerical calculations show that with the proposed dispersion management scheme, the crosstalk is mitigated and the performance is significantly improved.
Keywords :
optical crosstalk; optical fibre communication; optical fibre dispersion; optical links; optical modulation; semiconductor optical amplifiers; telecommunication channels; telecommunication network management; wavelength division multiplexing; SOA-induced crosstalk; WDM; WDM links; XGM; bit patterns; cascaded semiconductor optical amplifiers; cross-gain modulation; dispersion management scheme; fiber dispersion management; multichannel wavelength-division multiplexing link; Bit error rate; Optical amplifiers; Optical crosstalk; Optical fiber communication; Optical saturation; Power amplifiers; Semiconductor optical amplifiers; Signal analysis; Stimulated emission; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.822117
