OPTICAL SIGNAL-REGENERATING UNIT AND TRANSMISSION SYSTEM COMPRISING SUCH A UNIT

摘要

The invention relates to an optical signal-regenerating unit (9), a receiver (5) and an optical transmission system (1) comprising at least one such unit (9). The unit (9) has an input for receiving an optical signal pulse series (S1) to be regenerated, which signal pulse series has a modulation period T and a wavelength lambda d, and an output for supplying a regenerated signal pulse series (S2). The unit (9) comprises a pulsed laser (11) for supplying a pulse series having a pulse period T. Pulses of the signal pulse series (S1) to be regenerated can be injected into the pulsed laser (11) at instants for which it holds that E(Pm) > E(LPi). E(Pm) is the energy at the relevant instant of a pulse of the signal pulse series (S1) injected into the pulsed laser (11) and E(LPi) is the radiation energy of a pulse built up in the pulsed laser (11) at the relevant instant.