H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01)
Patent
CA 2617537
The invention relates to a method and a system for controlling a PMD compensator (2). For this purpose, a measuring signal (MS) is branched off from an already compensated optical data signal (ODSK) and supplied to a polarization adjuster (2). The output signal of the latter is supplied to an optical filter unit (61) and subdivided into two optical measuring signal components (OMK1, OMK2) having different polarizations. After a respective opto-electrical conversion, the spectra are compared with each other in an analysis and control unit (81) and the PMD compensator (2) is adjusted in such a manner that they are as identical as possible.
L'invention concerne un procédé et un système pour commander un compensateur PMD (2). A cet effet, un signal de mesure (MS) est dérivé d'un signal de données optique (ODSK) déjà compensé, et est fourni à un ajusteur de polarisation (2). Le signal de sortie correspondant est entré dans une unité de filtrage optique (61) et divisé en deux composantes de signal de mesure optique (OMKl, OMK2) présentant des polarisations différentes. Après une conversion opto-électrique respective, les spectres sont comparés dans une unité d'analyse et de commande (81), et le compensateur PMD (2) est ajusté de manière que ceux-ci soient identiques.
Nokia Siemens Networks Gmbh & Co. Kg
Sim & Mcburney
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