Optical wavelength division multiplexer/demultiplexer device
AssigneeQinetiq Limited
InventorsRichard M Jenkins, Mark E McNie
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Abstract
An optical wavelength division multiplexer/demultiplexer device is described that comprises a substrate having a plurality of wavelength selecting filters. The filters are arranged to provide conversion between a combined beam comprising a plurality of wavelength channels and a plurality of separate beams each comprising a subset of said plurality of wavelength channels. Hollow core waveguides are formed in said substrate to guide light between the wavelength selecting filters. An add/drop multiplexer is also described.
Claims20
An optical wavelength division multiplexer/demultiplexer device comprising:
- a substrate having a plurality of wavelength selecting filters, said filters being arranged to provide conversion between a combined beam comprising a plurality of wavelength channels and a plurality of separate beams each comprising a subset of said plurality of wavelength channels, and
- hollow core waveguides are formed in said substrate to guide light between the wavelength selecting filters.
A substrate for an optical wavelength division multiplexer/demultiplexer device comprising a plurality of alignment slots for receiving a plurality of wavelength selecting filters and hollow core waveguides to guide light between said alignment slots wherein the arrangement provides, when appropriate wavelength selecting filters are located in said alignment slots, conversion between a combined beam comprising a plurality of wavelength channels and a plurality of beams comprising a single wavelength channel.
Dependencies are inferred from the claim text.