Patent ID: 6212322
Filing Date: 2001-04-03
Classification: G02B,G06T

Abstract:
A single mode optical waveguide fiber comprising:a segmented core having at least two segments, each of the segments having a radius r.sub.i, a refractive index profile and a positive relative refractive index percent, .DELTA..sub.i %, where i is equal to the number of segments,and a clad layer surrounding and in contact with the core, the clad layer having a refractive index n.sub.c ;wherein, the r.sub.i, .DELTA..sub.i %, and the refractive index profiles are selected to provide:zero dispersion wavelength in the range of about 1465 nm to 1530 nm;total dispersion at 1530 nm.gtoreq.2 ps/nm-km;total dispersion slope <0.1 ps/nm.sup.2 -km over the wavelength range 1530 nm to 1570 nm;effective area >60 .mu.m.sup.2 ; and,mode field diameter, over the wavelength range of 1530 nm to 1570 nm, in the range of about 8.8 .mu.m to 10.6 .mu.m.