Multiplexer-demultiplexer device for wavelengths in an optical transmission fiber (6) for introducing therein a wavelength from an emitter (18) and for extracting wavelengths therefrom towards receivers (19), comprising several spherical mirrors (13-14) at least one of which (3) is a selective mirror...http://www.google.fr/patents/US4675860?utm_source=gb-gplus-shareBrevet US4675860 - Compact wavelength multiplexer-demultiplexer with variable filtration
Compact wavelength multiplexer-demultiplexer with variable filtration
