Polarization mode dispersion compensator parallel monitoring and control architecture
CA 2426997 A1 · Owner: Hoanca, Bogdan · Inventors: Chou, Patrick C.; Hoanca, Bogdan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A parallel monitored and controlled optical PMD compensator comprises a branch optical signal split from an optical signal path. A polarization controller (PC) and, differential group delay are disposed in each of the paths. A controller adjusts polarization, compensation of the PCs in response to PMD dispersion of the branch optical signal. A, PMD monitor is preferably disposed in the branch path providing a monitor signal to the, controller for use in adjusting the PCs. A polarization rotator may inject a reference signal, into the paths with the PC disposed in the branch path acting as a polarization scrambler. A state of polarization (SOP) of the reference signal may be monitored …
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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 April 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 28, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 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.