Patent ID: 6373608
Filing Date: 2002-04-16
Classification: H04B,H04J

Abstract:
Apparatus for regenerating an optical signal in the form of a bit stream represented by solitons defined in particular by a propagation wavelength and a bit rate, said apparatus comprising a clock recovery circuit for extracting a clock signal from said optical signal and an optical modulator for regenerating said solitons, and being characterized in that it includes, upstream from the modulator, synchronization means for synchronizing solitons emitted on n channels having respective different wavelengths, where n>1, said channels and said different wavelengths being associated with different group times, said synchronization means having m optical delay lines, where 1&lE;m&lE;n-2, the delay &tgr;i for the line i, where 1&lE;i&lE; m, being selected in such a manner as to compensate for the differences between the group times associated with various channels.