Optical fiber and optical transmission system including the...

G - Physics – 02 – B

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G02B 6/036 (2006.01)

Patent

CA 2352268

An optical fiber and optical transmission system realizing good optical communication in 1.3 µm and 1.55 µm wavelength bands. The optical fiber is characterized in that the optical fiber has only one zero dispersion wavelength in a wavelength range from 1.20 µm to 1.60 µm, the zero dispersion wavelength is in a wavelength range from 1.37 µm to 1.50 µm, and the optical fiber has a positive dispersion slope at the zero dispersion wavelength. The optical fiber enables good optical communication using signal light in the 1.3 µm and 1.55 µm wavelength bands on both sides of the zero dispersion wavelength.

L'invention concerne une fibre optique et un système de transmission optique permettant d'obtenir une bonne communication optique dans les bandes de longueur d'onde comprises entre 1,3 µm et 1,55 µm. La fibre optique est caractérisée en ce qu'elle présente uniquement une longueur d'onde à dispersion nulle dans une gamme de longueur d'onde comprise entre 1,20 µm et 1,60 µm, la longueur d'onde à dispersion nulle est comprise entre 1,37 µm et 1,50 µm, ladite fibre optique présentant une pente de dispersion positive à la longueur d'onde à dispersion nulle. La fibre optique permet d'obtenir une bonne communication optique en utilisant une lampe de signalisation dans les bandes de longueur d'onde comprises entre 1,3 µm et 1,55 µm, des deux côtés de la longueur d'onde à dispersion nulle.

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