Peer-Reviewed Journal Details
Mandatory Fields
Ellis, AD,Gunning, FCG;
IEEE Photonics Technology Letters
Spectral density enhancement using coherent WDM
Optional Fields
filtering optical communication terminals phase control wavelength-division multiplexing (WDM)
It is shown by numerical simulations that a significant increase in the spectral density of a 40-Gb/s wavelength-division-multiplexing (WDM) system can be obtained by controlling the phase of adjacent WDM channels. These simulations are confirmed experimentally at 40 Gb/s using a coherent,comb source. This technique allows the spectral density of a nonreturn-to-zero WDM system to be increased from 0.4 to 1 b/s/Hz in a single polarization. Optical filter optimization is required to minimize power crosstalk, and appropriate strategies are discussed in this letter. Index Terms-Filtering, optical communication terminals, phase control, wavelength-division multiplexing (WDM).
DOI 10.1109/LPT.2004.839393
Grant Details