Optical channel multiplexer and demultiplexer

摘要

An optical channel multiplexer and/or demultiplexer, in particular a wavelength multiplexer and/or demultiplexer, allows signals having the same wavelength to be multiplexed. The optical channel multiplexer or demultiplexer (1) has a wavelength multiplexer (2), a telecommunications connection (3), several local communications connections (4) and a signal converter (5) that allows wavelengths to be converted.