Highly non-linear single mode waveguide
CA 2313086 A1 · Owner: Hawk, Robert M. · Inventors: Nolan, Daniel A.; Hawk, Robert M.; Tarcza, Steven H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a single mode optical waveguide fiber having a core region refractive index profile designed to provide a highly non-linear refractive index. The core index profile of the highly non-linear waveguide is an .alpha.profile which has pre-selected values of relative refractive index and core diameter so as to retain the advantageous optical waveguide properties of low attenuation, properly placed zero dispersion and cut off wavelengths low, positive total dispersion over a pre-selected wavelength range and low , dispersion slope.
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 January 7, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 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.