Optical fiber and optical transmission line
AssigneeFurukawa Electric Co., Ltd.
InventorKazunori Mukasa
Life of this patent
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Abstract
The optical fiber has a dispersion value at a 1.55 μm-wavelength band, of 6 to 24 ps/nm/km, and satisfies A>3×D+40, where D represents a dispersion value (ps/nm/km) at a central wavelength of a 1.55 μm-wavelength band, and A represents an effective core area (μm2). The optical transmission line for transmitting an optical signal, which includes the optical fiber is provided as well.
Claims6
An optical fiber suitable for use in a dispersion managed transmission line, which has a ratio of a dispersion to a dispersion slope being positive at a wavelength of 1550 nm, a positive dispersion of 14 to 24 ps/nm/km in a wavelength band of 1530 to 1570 nm, a positive dispersion slope of not more than 0.08 ps/nm2/km in a wavelength band of 1530 to 1570 nm, a transmission loss of not more than 0.25 dB/km at a wavelength of 1550 nm, an effective core area of not less than 95 μm2 at a wavelength of 1550 nm, a bending loss of 20 dB/m or less at a bending diameter of 20 mm and at a wavelength of 1550 nm, and a polarization mode dispersion of 0.15 ps/km1/2 or less at a wavelength of 1550 nm, and which operates in a single mode in a wavelength band of 1530 to 1570 nm.
An optical fiber suitable for use in a dispersion managed transmission line, which has a ratio of a dispersion to a dispersion slope being positive at a wavelength of 1550 nm, a positive dispersion of 14 to 24 ps/nm/km in a wavelength band of 1530 to 1570 nm, an effective core area of not less than 90 μm2 at a wavelength of 1550 nm, and a bending loss of 20 dB/m or less at a bending diameter of 20 mm and at a wavelength of 1550 nm.
An optical fiber suitable for use in a dispersion managed transmission line, which has a ratio of a dispersion to a dispersion slope being positive at a wavelength of 1550 nm, a positive dispersion of 14 to 17 ps/nm/km in a wavelength band of 1530 to 1570 nm, a positive dispersion slope of not more than 0.08 ps/nm2/km in a wavelength band of 1530 to 1570 nm, a transmission loss of not more than 0.25 dB/km at a wavelength of 1550 nm, an effective core area of not less than 90 μm2at a wavelength of 1550 nm, a bending loss of 20 dB/m or less at a bending diameter of 20 mm and at a wavelength of 1550 nm, and a polarization mode dispersion of 0.15 ps/km1/2 or less at a wavelength of 1550 nm, and which operates in a single mode in a wavelength band of 1530 to 1570 nm.
Dependencies are inferred from the claim text.