Influence of Dispersion Compensation Granularity on the XPM-Induced Degradation in NRZ-IM-DD WDM Links at 10 Gbit/s per Channel with 50 GHz of Channel Spacing

Author

Costa, Nelson M S ; Alves, Tiago M F ; Cartaxo, Adolfo V T

Author_Institution

Inst. de Telecomunicacoes, Lisbon

Volume

1

fYear

2007

fDate

1-5 July 2007

Firstpage

151

Lastpage

154

Abstract

The influence of the dispersion compensation granularity on the cross-phase modulation (XPM) induced degradation in non-return-to-zero intensity modulated with direct detection wavelength division multiplexed links at 10 Gbit/s per channel with 50 GHz of channel spacing is assessed analytically for different power levels and four dispersion maps. The dispersion compensation granularity may lead to an increase of the power penalty due to XPM exceeding 1.5 dB for the locally optimal dispersion map (from the XPM degradation viewpoint) with high positive residual dispersion per span. The increase of the XPM normalized variance due to the dispersion compensation granularity is higher for links showing noticeable XPM degradation in the absence of dispersion compensation granularity. Lower XPM degradation tolerance to the dispersion map variation and higher power level leads to higher XPM degradation due to the dispersion compensation granularity.

Keywords

intensity modulation; optical fibre dispersion; optical fibre networks; phase modulation; wavelength division multiplexing; WDM links; XPM-induced degradation; channel spacing; cross-phase modulation; direct detection wavelength division multiplexed link; dispersion compensation granularity; frequency 50 GHz; non-return-to-zero intensity modulation; Bit rate; Channel spacing; Degradation; Delta modulation; Dispersion; Intensity modulation; Optical modulation; Optical transmitters; Phase modulation; Wavelength division multiplexing; cross-phase modulation (XPM); dispersion compensation granularity; dispersion map; wavelength division multiplexing (WDM);

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2007. ICTON '07. 9th International Conference on

Conference_Location

Rome

Print_ISBN

1-4244-1249-8

Electronic_ISBN

1-4244-1249-8

Type

conf

DOI

10.1109/ICTON.2007.4296054

Filename

4296054