Flattering the response of a planar wavelength division multiplexer using a y-junction
CA 2315460 A1 · Owner: Alavian, Shahram · Inventors: Diffily, Ronan; Shooshtari, Alireza; Andrews, Mark P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A planar dense wavelength division multiplexes comprising a Y-junction provided at its input to yield a flattened response is described herein. The flat response at the input is achieved by producing two gaussian-like profiles partially overlapping one another by employing a Y-junction with small channel-to-channel separation at the input of the division multiplexes.
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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
- Filed August 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2022.
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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.