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:
Dec. 22, 2020
Filed:
Aug. 03, 2016
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A wavelength selective optical switching arrangement () comprises a set of input ports (), a set of output ports (); a switching matrix; and a plurality of de-multiplexers each comprising an aggregate port () and a plurality of tributary ports (), each aggregate port being connected to an input port and each tributary port being connected to the switching matrix (), the switching matrix being coupled between the tributary ports and the output ports. The wavelength selective optical switching arrangement is configured to receive at an input port a group of optical signals, each optical signal being transmitted on a different wavelength and being assigned to one of a plurality of destination nodes. The wavelength selective optical switching arrangement is further configured to de-multiplex the group of optical signals in a said demultiplexer; re-group the optical signals into destination groups according to their destination node; and route each destination group to a respective output port assigned to the destination group.