Hitless tunable optical add drop multiplexer with vernier gratings

A set of three gratings may be operated in a vernier loop fashion to select a particular wavelength from a wavelength division multiplexed system. As a result, an optical add/drop multiplexer may be provided that can be tuned to select a desired wavelength. In one embodiment, the tuning may be done...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Deacon, David A. G, Madden, Steven J, Hubner, Jorg
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A set of three gratings may be operated in a vernier loop fashion to select a particular wavelength from a wavelength division multiplexed system. As a result, an optical add/drop multiplexer may be provided that can be tuned to select a desired wavelength. In one embodiment, the tuning may be done thermo-optically.