Patent ID: 7340141
Filing Date: 2008-03-04
Classification: G02B

Abstract:
1. A single mode optical fiber for enabling wavelength division multiflexing transmission at a wavelength range of 1,460 to 1,625 nm, the optical fiber having a transmission rate of 10 Gb/s and a channel spacing of 50 GHz or less, and comprising: (a) a core region positioned in an optically central axis and having a radius (r (b) a clad region surrounding the core region and having a radius (r the optical fiber also having: (c) a stepped refractive index profile where each radius of the regions is r (wherein, Δ wherein, (d) a dispersion value of at least 9 ps/nm-km at 1,460 nm; (e) an effective sectional area of 45 μm (f) a zero-dispersion wavelength existing at 1,370 nm or less, and a positive dispersion slope.