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. 27, 2004
Filed:
Aug. 20, 2001
Applicant:
Inventor:
Peter Krummrich, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/012 ;
U.S. Cl.
CPC ...
H04B 1/012 ;
Abstract
An optical amplifier arrangement having at least one optical amplifier stage (V , V ) and a variably settable attenuator (VDL), whose attenuation spectrum (DV , DV , DV , DV ) assumes an attenuation profile (DV , DV , DV , DV ) that increases or decreases proportionally to wavelength. To reduce tilt of the channel level spectrum of an optical transmission signal, the profile of the attenuation spectrum (DV , DV , DV , DV ) is variably settable. An advantageous structure of the variably settable attenuator according to the invention is furthermore specified.