Compact wavelength multiplexer-demultiplexer with variable filtration
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United States of America Patent
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Jun 23, 1987
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N/A
app pub date -
Jul 15, 1983
filing date -
Jul 16, 1982
priority date (Note) -
Expired
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Abstract
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 with dielectric layers, selected to segregate by transmission or reflection a band containing only one of the wavelengths transmitted, or to be transmitted, by the fiber (6). The invention applies to telecommunications employing optical fibers.
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