Patent ID: 7509054
Filing Date: 2009-03-24
Classification: H04B,H04J

Abstract:
1. A method for transmitting optical polarization multiplex signals, the method comprising: converting a first binary signal into a first optical signal; converting a second binary signal into a second optical signal polarized orthogonally to the first optical signal; combining the orthogonally polarized optical signals into a polarization multiplex signal; transmitting the polarization multiplex signal; dividing the polarization multiplex signal at the receiving end into two orthogonally polarized signal parts; converting each polarized signal part in a linear manner into a complex signal; feeding the complex signals to a multidimensional filter whose coefficients are controlled in such a way that signals which have been reconstructed independently of the polarization of the received polarization multiplex signal and which correspond to the optical signals are fed out at the filter outputs, and demodulating and converting the reconstructed signals into binary signals at the receiving end, wherein a data signal is converted by a serial-to-parallel conversion into a multiplicity of binary signals, the data signal having a higher rate than a multiplicity of binary signals.