Laser systems
CA 1323919 C · Owner: Armitage, Jonathan Richard · Inventors: Armitage, Jonathan Richard; Millar, Colin Anderson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to laser systems of the type comprising optical fibre amplifiers. A laser system comprises a first laser 1 and a second laser 2. The second laser 2 is pumped at a first wavelength .lambda.1 and caused to lase at a second wavelength .lambda.2. The first laser 1 has absorption bands at .lambda.1 and .lambda.2. The output .lambda.2 of laser 2 and the remnant pump at .lambda.1 are coupled and both are used to pump the first laser 1, thus causing laser 1 to lase at a third wavelength .lambda.3. (Figure 1)
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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
- Granted November 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 2010.
- 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.