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. 24, 2007
Filed:
Sep. 10, 2002
Christoph Glingener, Feldkirchen-Westerham, DE;
Klaus Kotten, Munich, DE;
Erich Gottwald, Holzkirchen, DE;
Christoph Glingener, Feldkirchen-Westerham, DE;
Klaus Kotten, Munich, DE;
Erich Gottwald, Holzkirchen, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An apparatus is provided for compensating for polarization mode dispersion which is caused during transmission of a light wave via an optical waveguide, to an optical communication network having such an apparatus, and a method for compensating for polarization mode dispersion which is caused during transmission of a light wave via an optical waveguide is also provided. The apparatus has at least one first and one second polarization mode dispersion compensation device, and a control device which controls at least the first polarization mode dispersion compensation device, with the light wave being supplied first of all to the first compensation device, which at least partially carries out polarization mode dispersion compensation on the supplied light wave, and with the light wave which is emitted from the first compensation device then being supplied to the second compensation device, which carries out further polarization mode dispersion compensation on the light wave, wherein the apparatus has a PMD detection device, which provides information relating to the polarization mode dispersion of the light wave that is emitted from the first compensation device, and the first compensation device is controlled by the control device using the information relating to the polarization mode dispersion of the light wave that is emitted from the first compensation device.