Patent ID: 6710904
Filing Date: 2004-03-23
Classification: H04B

Abstract:
A compensating system for an optical transmission system including a transmitter terminal emitting a polarized optical signal, a transmission optical fiber and a receiver terminal, said system comprising:a first dispersion compensating means comprising: at least one polarization controller, means for generating a differential group delay between two orthogonal polarization modes, said polarization controller and said differential group delay generator means being inserted between said transmission fiber and said receiver terminal, in that order, and a control unit for said polarization controller, and a second dispersion compensating means inserted between said transmitter and receiver terminals and adapted to apply variable chromatic dispersion compensation, wherein said control unit is adapted to control at the same time said polarization controller and said second dispersion compensating means in accordance with a measurement parameter representative of the quality of the optical signal received by said receiver terminal and in such manner as to optimize said quality.