Multi-element monolithic solid state laser
CA 2237697 C · Owner: Scientific-Atlanta, Inc. · Inventors: Anthon, Douglas W.; Munks, Timothy C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A monolithic solid state laser structure is used to construct erbium lasers that are insensitive to external pressure changes and vibrations and have , improved cooling of the gain medium (20) and reduced thermal lensing effect. In the monolithic laser structure, the gain medium (20) is separated from an optically transmissive plate (24) on one side and a wave plate (21) on the other side by spacers to form narrow air gaps (31 and 33) which provide effective cooling of the gain medium (20) and reduced the thermal lensing effect. Such an arrangement is further combined with a pressure-insensitive brewster polarizer such as a solid brewster polarizer (42 and 46) or a , pressure-sealed …
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, 1996 and granted April 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2018.
- 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.