H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01) G02B 6/34 (2006.01)
Patent
CA 2477682
The present invention relates to an apparatus and method for mitigating the effects of polarization mode dispersion (PMD) in high speed optical signal transmission systems. The apparatus comprises a concatenation of birefringent elements (11, 12, 16) of which at least two (11, 12) can be selectively controlled by means of a feedback device (15), and is capable of mitigating the effects of first- and second-order PMD even through the architecture used features a limited number of control connections (11a, 12a9 and corresponding control signals.
L'invention concerne un appareil et un procédé destinés à atténuer les effets de la dispersion de mode de polarisation (PMD) dans des systèmes d'émission de signaux optiques à grande vitesse. L'appareil comprend une concaténation d'éléments biréfringents (11, 12, 16) parmi lesquels au moins deux (11, 12) peuvent être commandés de manière sélective par un dispositif de rétroaction (15), et permet d'atténuer les effets de la PMD de premier et de second ordre même si l'architecture utilisée présente un nombre limité de connexions de commande (11a, 12a) ainsi que des signaux de commande correspondants.
Riposati Benedetto
Schiano Marco
Ridout & Maybee Llp
Telecom Italia S.p.a.
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