%0 Journal Article
%T Schemes for Compensation of Chromatic Dispersion in Combined HDWDM Systems
%A V. Bobrovs
%A A. Udalcovs
%A S. Spolitis
%A G. Ivanovs
%J Latvian Journal of Physics and Technical Sciences
%D 2011
%I Versita
%R 10.2478/v10047-011-0033-6
%X The authors seek best ways to realize chromatic dispersion (CD) compen-sation schemes for differently modulated optical signals in high-speed mixed data rate HDWDM systems. The research is based on OptSim 5.1. simulation software, which numerically solves nonlinear Schr dinger equation using the split-step Fourier method. It is shown that the CD compensation scheme is crucial for the performance evaluation in combined HDWM transmission channels. Therefore, a scheme of the type is proposed that is suited best for a very complicated combined fiber optical transmission system. It is also found that asymmetrical CD compensation schemes in pre- and post-compensation modules are the most efficient, allowing the best BER in a channel to be achieved.
%K high density wavelength division multiplexing (HDWDM)
%K chromatic dispersion (CD) compensation methods
%K differential phase shift keying with non-return-to zero coding (NRZ-DPSK)
%K binary-state polarization shift keying (2-POLSK)
%K on-off keying with NRZ coding (NRZ-OOK)
%K fiber Bragg grating (FBG)
%K optical phase conjugator (OPC)
%K dispersion compensating fiber (DCF)
%U http://versita.metapress.com/content/w538p187jx521x95/?p=1fbf5a229c9a4b98bd11af0eb077d543&pi=2