Optical fiber and optical transmission path
AssigneeFujikura Ltd.
InventorsShoichiro Matsuo, Kuniharu Himeno, Koichi Harada
Life of this patent
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Abstract
An optical fiber having a chromatic dispersion of +1.0 ps/nm/km or more in a 1460 nm wavelength band, a dispersion slope of 0.04 ps/nm2/km or more in a 1550 nm wavelength band, and a cutoff wavelength of 1450 nm or less, comprises a relation of an RDS, which is a value of the dispersion slope to the chromatic dispersion, to a wavelength λ is −1.67×10−5λ+0.0300≧RDS(λ)≧−1.67×10−5λ+0.0285.
Claims12
An optical fiber having a chromatic dispersion of +1.0 ps/nm/km or more at 1460 nm wavelength band, a dispersion slope of 0.04 ps/nm2/km or more at 1550 nm wavelength band, and a cutoff wavelength of 1450 nm or less, wherein a relationship of an RDS, which is a value of the dispersion slope to the chromatic dispersion, to a wavelength λ is −1.67×10−5λ+0.0300≧RDS(λ)≧−1.67×10−5λ+0.0285.
An optical fiber having a chromatic dispersion of +1.0 ps/nm/km or more at 1460 nm wavelength band, a dispersion slope of 0.04 ps/nm2/km or more at 1550 nm wavelength band, and a cutoff wavelength of 1450 nm or less, comprising wavelength bandwidth having wavelength bandwidths containing over 115% and less than 115% of dispersion slope compensating coefficient, or having wavelength bandwidths containing over 100% and less than 100% of dispersion slope compensating coefficient in a wavelength bandwidth in which dispersion compensation is carried out;
- a dispersion slope compensating coefficient at long-wavelength side being 80% to 150% or being 100% to 130% in a wavelength bandwidth in which dispersion compensation is carried out;
- and a dispersion slope compensating coefficient at short-wavelength side being 170% or less or 150% or less in a wavelength bandwidth in which dispersion compensation is carried out using a dispersion compensating optical fiber.
Dependencies are inferred from the claim text.