Spatially modulated reflector for an optoelectronic device
CA 2433357 A1 · Owner: Finisar Corporation · Inventors: Strzelecki, Eva M.; Morgan, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved resonant reflectors (54, 70, 90) are provided for increased mode control of optoelectronic devices (10). Some of the resonant reflectors (54 70) provide improved mode control while not requiring significant additional processing steps, making them ideal for commercial applications. Other resonant reflectors (90) reduce or eliminate abrupt changes in the reflectively of the resonant reflector (90) across an optical cavity of an optoelectronic device (10), allowing them to reduce or eliminate undesirable diffraction effects that are common in many resonant reflectors.
Read the whole patent
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 December 20, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2023.
- 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.