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:
Mar. 15, 2005
Filed:
Mar. 12, 2002
Christian Eder, Munich, DE;
Guido Gentner, Munich, DE;
Richard Neuhauser, Neufahrn, DE;
Ulrich Gaubatz, Karlsfeld, DE;
Peter Krummrich, Munich, DE;
Christian Eder, Munich, DE;
Guido Gentner, Munich, DE;
Richard Neuhauser, Neufahrn, DE;
Ulrich Gaubatz, Karlsfeld, DE;
Peter Krummrich, Munich, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A method for producing non-equidistant pump waves for Raman amplification of a signal which is passed via an optical waveguide, as well as a pump wave producing apparatus for producing pump waves for Raman amplification of a signal which is passed via an optical waveguide, which apparatus has at least one pump source and is set up such that it can produce pump waves at a first, a second, a third and a fourth mutually equidistant pump wavelength, having a control device which is set up such that it causes, in each case, the production of a pump wave u, v, w at the first, second and fourth pump wavelengths, with the control device being set up such that no pump wave is produced at the third pump wavelength, so that a non-equidistant pump channel pattern is achieved overall.