The optical device for low-noise amplification or modulation inversion or for the production of silent light

摘要

To treat an input optical signal is modulated in intensity, a unit according to the invention comprises: the phase shifting means (1) arranged to receive the input optical signal and to apply, substantially without attenuation, a phase shift not - linear depending on its intensity; and optical parametric amplification means (2) to be applied to the optical signal phase-shifted by the phase shifting means a significant amplification of the phase by interaction with a beam of pompage.les values of the range of the intensity of the input optical signal and a phase shift between the pump and the signal define the processing carried out: amplification, the inversion of modulation or the generation of light calm.