Asymmetric interleaver/de-interleaver circuit
CA 2278358 A1 · Owner: Farries, Mark · Inventors: Copner, Nigel; Fu, Xiaoli; Paiam, Reza
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and circuit is disclosed wherein two waveguides coupled to an optical resonant ring resonator are further coupled such that beams propagating therein, interfere with one another to provide a desired output response. In one embodiment, multiplexed channels of light can be demultiplexed by the device described heretofore, or alternatively the phase relationship between these , two beams can be altered prior to their being combined to provide for example, a, linearized output response useful in applications such as wavelength locking. By, varying the reflectivity of the FSR and the coupling ratios and/or by varying the, phase relationship between the two beams a variety of desired …
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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 July 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2021.
- 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
Timeline From CIPO dates
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.