Spectral bandwidth calibration of an optical spectrum analyzer
CA 2360475 C · Owner: Acterna Eningen Gmbh · Inventors: Steininger, Klaus; Fuhrmann, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an optical spectrum analyzer (1), the respective wavelength bandwidths (.DELTA..lambda. OS1, .DELTA..lambda.OS2, .... .DELTA..lambda.OSn) of the optical spectrum analyzer (1) are determined at the wavelengths (.lambda.R1 .lambda.R2, ... .lambda.Rn) of the reference lines and used as calibration data for determining measurement tolerances by means of reference lines of known wavelength (.lambda.R1 .lambda.R2 , ... .lambda.Rn) and known wavelength bandwidths (.DELTA..lambda.R1 .DELTA..lambda.R2, .... .DELTA..lambda.Rn) from the known wavelength bandwidths (.DELTA..lambda.R1 .DELTA..lambda..R2 , .... .DELTA..lambda..Rn) of the reference lines and from the wavelength bandwidths …
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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
- Filed October 30, 2001 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2023.
- 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
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Sources & verification
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.