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:
Apr. 20, 2010
Filed:
Dec. 07, 2006
Gustav Veith, Bad Liebenzell, DE;
Gustav Veith, Bad Liebenzell, DE;
Alcatel, Paris, FR;
Abstract
A regenerator (-) for regenerating optical signals on optical transmission links (), in particular for use in a Dense Wavelength Division Multiplex (DWDM) optical transmission system. The regenerator (-) comprises optical amplification means () for compensating optical power losses, and a deterministic adaptation unit () comprising means being adapted to compensate deterministic transmission impairments of the optical transmission link (), in particular optical dispersion compensating means being adapted to compensate for chromatic dispersion of said link (). The proposed regenerator (-) further comprises a non-deterministic adaptation unit () comprising means for compensating time variant non-deterministic transmission impairments, in particular polarisation mode dispersion. In this way, the proposed regenerator overcomes transmission limitations and improves robustness of long and ultra-long-haul multi-span DWDM transmission systems with respect to deterministic and non-deterministic transmission impairments.