Spectral density enhancement using coherent WDM
Top Cited Papers
- 24 January 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 17 (2) , 504-506
- https://doi.org/10.1109/lpt.2004.839393
Abstract
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.Keywords
This publication has 2 references indexed in Scilit:
- High spectral efficiency 1.6-b/s/Hz transmission (8 x 40 Gb/s with a 25-GHz grid) over 200-km SSMF using RZ-DQPSK and polarization multiplexingIEEE Photonics Technology Letters, 2003
- More than 100-wavelength-channel picosecond optical pulse generation from single laser source using supercontinuum in optical fibresElectronics Letters, 1993