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:
Apr. 16, 2019
Filed:
Apr. 13, 2018
Ciena Corporation, Hanover, MD (US);
Balakrishnan Sridhar, Ellicott City, MD (US);
Jean-Luc Archambault, Ottawa, CA;
Loren Berg, Ottawa, CA;
Ciena Corporation, Hanover, MD (US);
Abstract
A Raman pump system for a Raman amplifier includes a plurality of primary Raman pumps each at a corresponding wavelength; and at least one pair of redundant Raman pumps including a primary redundant Raman pump at a primary wavelength and a secondary redundant Raman pump at a secondary wavelength, wherein only one of the primary redundant Raman pump and the secondary redundant Raman pump is employed based on a zero dispersion wavelength location of a fiber over which the Raman pump system operates. The secondary wavelength can be separated from the primary wavelength by at least 2 nm or 3 nm and no more than 10 nm. The Raman pump system can provide amplification across both the C Band and the L Band.