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. 06, 2007
Filed:
Feb. 17, 2005
John Zyskind, Concord, MA (US);
Andrew Niall Robinson, Lincoln, MA (US);
Seo Yeon Park, Westford, MA (US);
Clement Dowd Burton, Westwood, MA (US);
John Jacob, Hollis, NH (US);
Erik Robert Thoen, Cambridge, MA (US);
John Zyskind, Concord, MA (US);
Andrew Niall Robinson, Lincoln, MA (US);
Seo Yeon Park, Westford, MA (US);
Clement Dowd Burton, Westwood, MA (US);
John Jacob, Hollis, NH (US);
Erik Robert Thoen, Cambridge, MA (US);
JDS Uniphase Corporation, Milpitas, CA (US);
Abstract
An optical communications system includes a plurality of optical fiber spans. An optical loss of one of the plurality of optical fiber spans is different from an optical loss of another one of the plurality of optical fiber spans. At least one of the plurality of optical fiber spans includes an optical loss that is greater than or equal to 35 dB and at least one of the plurality of optical fiber spans includes an optical loss that is less than 30 dB. An optical amplification system includes at least one discrete optical amplifier, at least one distributed optical amplifier, and an optical loss element. The optical amplification system has spectral gain that compensates for substantially all losses experienced by the optical signals propagating in the plurality of optical fiber spans.