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:
Aug. 26, 2014
Filed:
Jul. 19, 2012
Tomer Eliyahu, Elad, IL;
Eyal Sarid, Eli, IL;
Uri Ghera, Tel Aviv, IL;
David Menashe, Tel-Aviv, IL;
Finisar Israel Ltd., Holon, IL;
Abstract
Methods for optimizing a noise figure of a variable gain hybrid amplifier (HA) which includes a variable gain Raman amplifier with adjustable average gain Gand gain tilt Tand a variable gain lumped amplifier with adjustable average gain Gand gain tilt T. In various embodiments, the methods include receiving as input a required hybrid amplifier average gain Gvalue and a required gain tilt Tvalue and deriving a set of G, T, Gand Tvalues which yield an optimal optimized hybrid amplifier NF and satisfy the conditions G+G=Gand that T+Tis within a specified hybrid amplifier operating tilt range. In some embodiments, the derived Tand Tvalues satisfy the condition T+T=T.