H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01) G02B 6/34 (2006.01)
Patent
CA 2492326
A tunable dispersion compensator for the compensation of the chromatic dispersion experienced by a single-channel or multi-channel light signal. The compensator includes a plurality of optical structures such as chirped Bragg gratings or combinations thereof, each having a characteristic dispersion profile. An optical coupling arrangement successively propagates the light signal in each of these structures, so that it accumulates the dispersion compensation effect of each. A tuning device jointly tunes the dispersion profile of each optical structure by applying a same tuning force thereto, preferably a temperature gradient.
L'invention concerne un compensateur de dispersion accordable conçu pour compenser la dispersion chromatique affectant un signal lumineux mono- ou multicanal. Le compensateur comprend une pluralité de structures optiques telles que des réseaux de Bragg comprimés ou des combinaisons de tels réseaux dotées chacune d'un profil de dispersion caractéristique. Un agencement à couplage optique, qui assure la propagation du signal lumineux dans chacune des ces structures, accumule l'effet de compensation de dispersion de chacune d'elles. Un dispositif d'accord accorde conjointement le profil de dispersion de chacune des structures optiques en leur appliquant la même force d'accord, de préférence un gradient thermique.
Lachance Richard
Lelievre Sylviane
Painchaud Yves
Robic
Teraxion Inc.
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