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:
Oct. 03, 2006
Filed:
Dec. 02, 2004
Uri Ghera, Tel-Aviv, IL;
Daniel Berger, Petach-Tikva, IL;
Itzhak Filiba, Petach-Tikva, IL;
David Menashe, Even-Yehuda, IL;
Uri Ghera, Tel-Aviv, IL;
Daniel Berger, Petach-Tikva, IL;
Itzhak Filiba, Petach-Tikva, IL;
David Menashe, Even-Yehuda, IL;
Redc Optical Networking Ltd., Tel Aviv, IL;
Abstract
A system and method for providing eye-safety protection during operation of distributed Raman amplifiers based on the application of continuous out-of-band amplified spontaneous scattering (ASS) monitoring in an optical communication network span coupled to the Raman amplifier, and real-time detection and analysis of changes in the monitored ASS power level, The system includes at least one Raman pump for introducing Raman energy into the span, a monitoring unit for performing the continuous ASS monitoring, and a control unit operative to detect and analyze in real-time changes in the ASS power, and upon determination that such changes indicate an open span, to reduce the level of the Raman pump energy entering the span to a safe level.