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:
Mar. 13, 2012
Filed:
Sep. 22, 2006
Gianluca Berrettini, Pisa, IT;
Antonella Bogoni, Montova, IT;
Luca Poti, Pisa, IT;
Telefonaktiebolaget LM Ericsson (publ), stockholm, SE;
Abstract
An optical switch assembly comprising at least two optical amplifiers (), means for applying a first input signal to one end of both amplifiers () and a second input signal to another end, and means for simultaneously driving one or other of the amplifiers into a saturated state whilst the other is unsaturated such that only the amplifier that is unsaturated provides any significant amplification to the input signals at each end, and means for feeding the amplified output signals from the amplifiers to at least two output nodes such that the two amplifiers () are connected to the two output nodes in opposite connections.