A single mode laser suitable for use in frequency multiplied applications and method
CA 2289695 C · Owner: Xie, Ping · Inventors: Xie, Ping
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A single mode laser implementation and associated method are disclosed. The laser (10) may accommodate a frequency multiplying material to provide an intracavity doubled single frequency laser. The laser implementation includes an input mirror (20) and an output mirror (22) defining a resonant cavity and a light path within the resonant cavity and between the mirrors. A lasant material (24) is positioned in the light path for lasing at a desired fundamental wavelength and possibly other unwanted wavelengths. A first , birefringent member (26) is also positioned in the light path for refracting in different directions the different wavelengths of light which are present along the …
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 May 26, 1998 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2020.
- 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.