Patent ID: 6421491
Filing Date: 2002-07-16
Classification: G02B

Abstract:
A single mode optical waveguide fiber comprising:a core region surrounded by and in contact with a clad layer, wherein the core region and the clad layer each have respective refractive index profiles and are configured to guide light through the waveguide fiber; wherein, said core region including a central segment, a first annular segment surrounding the central segment, and a second annular segment surrounding the first annular segment, wherein, each said segment has a respective refractive index profile, inner and outer radius, and relative refractive index percent not less than 0, selected to provide a waveguide fiber having a total dispersion in the range of about 1.0 ps/nm-km to 16.0 ps/nm-km over the wavelength range 1470 nm to 1625 nm.