A raman amplifier
CA 2383722 A1 · Owner: Masum-Thomas, Jowan · Inventors: Masum-Thomas, Jowan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A Raman amplifier comprises first and second stages in which a single pump , source, is used for both stages. The pump source output is coupled to one end of the second, stage and unused pump power is tapped from the other end of the second stage. The, unused pump power is then introduced into the first stage. The attenuation of the, pump source signal in the second stage results in a lower power pump signal being, applied to the first stage. The specific design of the amplifier stages enables the two, pump power levels to be suitable for different fiber types so that the advantages of a, multi-stage amplifier are maintained (with each stage being designed taking into, account 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 April 26, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 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.