Patent ID: 6487005
Filing Date: 2002-11-26
Classification: H01S,H04B

Abstract:
A long-distance optical transmission system comprising pulse emitter and receiver means and an optical line which extends between said emitter and receiver means and which comprises alternating segments of dispersive fibers having chromatic dispersion of opposite signs, and also having a plurality of amplifiers, said optical line comprising at least one pair of dispersive fiber segments having chromatic dispersion of opposite signs between successive amplifiers, the system being characterized in that said optical line comprises a plurality of such pairs between successive amplifiers, and in that the cumulative dispersion C over the majority of the segments of the optical line satisfies the relationship|C|&Dgr;&ngr;2<0.3 where C is expressed in ps/nm and where &Dgr;&ngr; is the half-height spectral value of the pulses expressed in THz.