Title :
Optimized optical filtering for 40 Gb/s/channel enhanced phase-shaped binary transmission in ultra dense WDM systems
Author :
Pavlovic, Natasa B. ; Cartaxo, Adolfo V T
Author_Institution :
Instituto de Telecomunicacoes, Inst. Superior Tecnico, Lisboa, Portugal
Abstract :
The systematic optimization of multiplexing (MUX) and demultiplexing (DMUX) 3 dB filter bandwidths for enhanced phase-shaped binary transmission (EPSBT) coding format is performed. Long-haul 40 Gb/s ultra dense wavelength division multiplexing (UDWDM) system with 0.8 bit/s/Hz spectral efficiency is shown to be achievable with different filter types. By extensive numerical optimization of MUX and DMUX filtering, we show that the optimum EPSBT has an extinction ratio parameter of 0 dB for second-order super Gaussian filters and between 2 and 6 dB for Gaussian filters.
Keywords :
channel spacing; encoding; optical filters; optimisation; wavelength division multiplexing; 40 Gbit/s; channel spacing; coding; demultiplexing filter; enhanced phase-shaped binary transmission; extinction ratio parameter; multiplexing filter; optimized optical filtering; second-order super Gaussian filters; spectral efficiency; ultra dense WDM systems; ultra dense wavelength division multiplexing; Bandwidth; Demultiplexing; Extinction ratio; Filtering; Optical crosstalk; Optical filters; Optical receivers; Optical sensors; Optical transmitters; Wavelength division multiplexing;
Conference_Titel :
Transparent Optical Networks, 2004. Proceedings of 2004 6th International Conference on
Print_ISBN :
0-7803-8343-5
DOI :
10.1109/ICTON.2004.1360279
