Dispersion-shifted fiber

Details Dispersion-shifted fiber Dispersion-shifted fiber

H - Electricity

04

B

H04B 10/18 (2006.01) C03B 37/014 (2006.01) G02B 6/02 (2006.01)

Patent

CA 2225889

The present invention aims to provide a dispersion-shifted fiber which can effectively restrain nonlinear optical effects from occurring and has a configuration suitable for long-haul light transmission. The dispersion-shifted fiber has, as various characteristics at a wavelength of 1,550 nm, a dispersion level of 1.0 to 4.5 ps/nm/km in terms of absolute value, a dispersion slope not greater than 0.13 ps/nm2/km in terms of absolute value, an effective core cross-sectional area not less than 70 µm2, and a transmission loss not greater than 0.25 dB/km with respect to light in a 1.55-µm wavelength band.

Fibre à dispersion décalée capable de limiter efficacement l'apparition d'effets optiques non linéaires et dont la configuration convient pour la transmission de lumière à grande distance. La fibre comporte diverses caractéristiques à une longueur d'onde de 1 550 nm : un niveau de dispersion de 1,0 à 4,5 ps/nm/km en valeur absolue, une pente de dispersion d'au plus 0,13 ps/nm2/km en valeur absolue, une section d'âme efficace d'au moins 70 µm2, et un affaiblissement de transmission d'au plus 0,25 dB/km en ce qui a trait à la lumière dans une bande de longueur d'onde de 1,55-µm.

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