Cascaded raman resonator with sampled grating structure
CA 2396751 A1 · Owner: Jds Uniphase Corporation · Inventors: Pezeshki, Bardia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sampled grating structure (12) is used to provide the necessary wavelength selection for a multiple wavelength resonator such as a cascaded Raman , resonator (CRR). The grating structure (12) may include a plurality of grating sections (16) that have the same grating pitch and that are equally spaced apart along the length of the grating. Alternatively the grating structure , (12) may be chirped having a plurality of contiguous grating sections (30) each with a substantially identical grating pitch that changes linearly over its length. The sampled grating (12) is combined with a second reflector (14) to provide resonance within a gain medium at a plurality of desired wavelengths. …
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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 January 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 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
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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.