Optical fiber and optical-fiber transmission line
AssigneeFurukawa Electric Co., Ltd.
InventorKatsunori Imamura
Life of this patent
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Abstract
An optical fiber that transmits a signal light in a fundamental propagation mode has a cutoff wavelength longer than a wavelength of the signal light, a wavelength dispersion of the fundamental propagation mode of −5 ps/nm/km to −1 ps/nm/km at a wavelength of 1550 nanometers, an effective core area of the fundamental propagation mode larger than 45 μm2 at the wavelength of 1550 nanometers, and a dispersion slope of the fundamental propagation mode smaller than 0.03 ps/nm2/km at the wavelength of 1550 nanometers.
Claims7
An optical fiber that transmits a signal light in a fundamental propagation mode, the optical fiber having
- a cutoff wavelength longer than a wavelength of the signal light,
- a wavelength dispersion of the fundamental propagation mode of −5 ps/nm/km to −1 ps/nm/km at a wavelength of 1550 nanometers,
- an effective core area of the fundamental propagation mode larger than 45 μm2 at the wavelength of 1550 nanometers, and
- a dispersion slope of the fundamental propagation mode smaller than 0.03 ps/nm2/km at the wavelength of 1550 nanometers, wherein the dispersion slope of the fundamental propagation mode is smaller than 0 ps/nm2/km at the wavelength of 1550 nanometers.
An optical fiber transmission line comprising:
- an optical fiber that transmits a signal light in a fundamental propagation mode, the optical fiber having
- a cutoff wavelength longer than a wavelength of the signal light,
- a wavelength dispersion of the fundamental propagation mode of −5 to −1 ps/nm/km at a wavelength of 1550 nanometers,
- an effective core area of the fundamental propagation mode larger than 45 μm2 at the wavelength of 1550 nanometers, and
- a dispersion slope of the fundamental propagation mode smaller than 0.03 ps/nm2/km at the wavelength of 1550 nanometers, wherein the dispersion slope of the fundamental propagation mode is smaller than 0 ps/nm2/km at the wavelength of 1550 nanometers.
Dependencies are inferred from the claim text.