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:
Jul. 31, 2007
Filed:
Jul. 30, 2004
Daniel C. Kilper, Rumson, NJ (US);
Claude A. Martell, Fair Haven, NJ (US);
Narasimhan Raghavan, Piscataway, NJ (US);
David A. Sadler, Holmdel, NJ (US);
Christopher A. White, Neshanic Station, NJ (US);
Daniel C. Kilper, Rumson, NJ (US);
Claude A. Martell, Fair Haven, NJ (US);
Narasimhan Raghavan, Piscataway, NJ (US);
David A. Sadler, Holmdel, NJ (US);
Christopher A. White, Neshanic Station, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
In an optical transmission system, operations of certain elements are adjusted in an individualized manner after detecting a change in the total optical power level corresponding to multiple optical channels in a link of the system in order to control transients in those channels. For example, in response to a sudden drop in the number of channels resulting from a fiber cut, the power levels of the optical pumps in a Raman amplifier in an OADM are adjusted to reduce transient gain errors in the surviving channels, where the adjustment to the pump power level for each different optical pump is a function of both the detected change in the total optical power level and at least one specified coefficient for that particular optical pump, in order to handle non-linearities in the response of the Raman amplifier to the sudden drop in the number of optical channels.