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:
Aug. 26, 2008
Filed:
Sep. 10, 2004
Antonella Bogoni, Montova, IT;
Giovanni Sacchi, Milan, IT;
Antonio D'errico, San Severo, IT;
Fabrizio Di Pasquale, Pisa, IT;
Antonella Bogoni, Montova, IT;
Giovanni Sacchi, Milan, IT;
Antonio D'Errico, San Severo, IT;
Fabrizio Di Pasquale, Pisa, IT;
Marconi Communications SpA, , IT;
Abstract
A looped WDM optical network comprises an optical loop with optical amplifiers () between the sections of the loop () and with ASE recirculation in the loop. At a point of the loop a laser beam is injected and allowed to circulate in the loop with the laser beam being centered around a λwavelength where it is desired that a lasing peak be generated. This supplies high network strength in terms of section loss variations and greatly improves the OSNR of the WDM signal. High network survivability is also achievable.