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:
Jan. 23, 2007
Filed:
Jan. 31, 2006
Narasimhan Raghavan, Piscataway, NJ (US);
David a Sadler, Holmdel, NJ (US);
Christopher Alan White, Neshanic Station, NJ (US);
Narasimhan Raghavan, Piscataway, NJ (US);
David A Sadler, Holmdel, NJ (US);
Christopher Alan White, Neshanic Station, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A method and apparatus for controlling the pump powers of a broadband DWDM optical system using Raman amplification which determines pump settings that are advantageously directed to minimizing the peak-to-peak ripple of the channel powers with respect to a given per-channel target. The illustrative method and apparatus first formulates a linear programming optimization problem, and then solves the formulated linear program in order to derive a new set of pump powers to be applied to the Raman amplification pumps. In accordance with the principles of the invention, the formulated linear programming optimization problem advantageously includes one or more 'virtual' channels in addition to the actual channels used in the optical transmission system. The linear program may be solved with use of any conventional linear programming solution technique, such as, for example, the simplex method.