ALL-OPTICAL CONVERTER

摘要

The invention relates to an all-optical converter (10) for converting an intensity modulated optical signal into an optical DPSK modulated signal comprising a first input (152a) for a first intensity modulated optical signal (12), a differential encoding module (100) for carrying out a differential encoding between the first signal (12) and a second optical signal synchronous therewith, a device (200) for modulating the phase of an optical signal (16) according to the differential encoding which is carried out by the differential encoding module (100) and the output (162c) of the modulating device (200) delivering the optical DPSK modulated signal (14).