Method and apparatus for controlling a variable optical attenuator in an optical network
CA 2429083 A1 · Owner: Alcatel-Lucent Canada Inc. · Inventors: Moharram, Omayma E.; Donnelly, Victoria; Bierman, Robert Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention describes a method for controlling attenuation for a variable optical attenuator (VOA) inserted in an optical path of an optical signal propagating in an, optical network, comprising the steps of measuring power of the optical signal at the, VOA; comparing the measured power with a target power; and if the measured power, differs from the target power, changing the attenuation of the VOA in one or , more, variable size intervals (VSI) so that the power of the optical signal substantially equals to, the target power wherein the VSI being a function of the measured power and target, power. The method further comprises the step of comparing the measured power with a, …
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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 May 20, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 20, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 20, 2025.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.