The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Feb. 09, 2017
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Antonio D'Errico, Pisa, IT;
Francesco Giurlanda, Pisa, IT;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
A polarization controller is configured to control polarization of an optical signal. The polarization controller includes a first polarization rotator and a second polarization rotator controllable by control settings. The polarization controller includes a monitor unit configured to generate a monitoring value indicating a performance of the polarization controller. The polarization controller is configured to determine from the monitoring value if the polarization controller is operating in a selected one of a plurality of optimal performance states. If operation is not in an optimal performance state, the polarization controller is further configured to select different control settings to select an alternate one of the plurality of optimal performance states for the polarization controller.