UNIT FOR PROCESSING AN INTENSITY MODULE OPTICAL SIGNAL, METHODS OF AMPLIFYING, MODULATION INVERSION AND LIGHT-LIGHT PRODUCTION THAT CAN BE IMPLEMENTED WITH SUCH A UNIT

摘要

P For processing an intensity modulated input optical signal, a unit according to the invention comprises: phase-shifting means (1) arranged to receive the input optical signal and to apply to it, substantially without attenuation, a non-phase-shift linear depending on its intensity; andparametric optical amplifying means (2) for applying to the phase-shifted optical signal produced by the phase-shifting means phase-responsive amplification by interaction with a pump beam.The values of the intensity range of the input optical signal and a phase shift between the pump and the signal define the processing performed: amplification, modulation inversion or quiet light generation. / P