Patent ID: 6556758
Filing Date: 2003-04-29
Classification: G02B,H04B

Abstract:
An optical transmission line, comprising:one or more first optical fibers each having a dispersion of +1.0 to +8.0 ps/nm/km in a wavelength band of 1530 to 1620 nm and a difference of 3.0 ps/nm/km or less between a maximum value and a minimum value of the dispersion thereof; and one or more second optical fibers each having a dispersion of âˆ’1.0 to âˆ’8.0 ps/nm/km in the wavelength band and a difference of 3.0 ps/nm/km or less between a maximum value and a minimum value of the dispersion thereof, wherein, in the wavelength band, a difference between a maximum value and a minimum value of an average dispersion value obtained from each fiber length and each dispersion value of said first and second optical fibers is 2.0 ps/nm/km or less.