Integrated-optics implementation of an interferometric spectrum analyser
CA 1285048 C · Owner: Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty'S Canadian Government · Inventors: Brousseau, Nicole
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved interferometric spectrum analyser system with direction finding capabilities for an emitting source the, type having a holographic element to provide a laser beam source for the system. The laser beam from the source is focused on a light waveguide within which are arranged in asymmetrical configuration with respect to the direction of the laser beam source a plurality of antenna signal transducers and a plurality of reference signal transducers the antenna signal, transducers and the reference signal transducers respectively being arranged in adjacent rows in such a manner as to provide acoustic signals propagating in the same direction within the transducer. A lens assembly is …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 18, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 18, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.