Tracking error suppression and method of reducing tracking error
CA 2394380 A1 · Owner: Kim, Tae Jin · Inventors: Major, Jo; Wolak, Edmund; Ransom, Harrison
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser package comprises a laser diode source having a first Fabry-Perot cavity between a highly, reflective back facet and low reflective front facet for providing a first light output for an optical, application. A light monitor is positioned adjacent to the back facet and aligned to receive a second, light output from the laser diode back facet. A pigtail fiber having a lensed fiber input end is, positioned from the laser diode front facet to form an optical coupling region and is aligned relative to, the lasing cavity to receive the first light output into the fiber the light , output exiting the package for coupling to the application. A portion of the first light output from the …
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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, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2024.
- 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.