Soliton or soliton-like optical pulses with characteristics adapted to propagation
in an optical line for RZ type transmission are generated by modulating a continuous
optical signal (1) by means of a modulator (2) which is substantially
devoid of chirping, in which the modulator drive signal comprises at least one
frequency (4) and one harmonic (5) thereof superimposed on each other (7).
A high-speed optical transmission system is rendered independent of the type
of
transmitter or of signals sent to it if it comprises an adaptation unit (32)
receiving the original optical pulses (30) and capable of generating corresponding
pulsed signals (63) of RZ type.
