Patent ID: 6760527
Filing Date: 2004-07-06
Classification: C03B,C03C,G02B

Abstract:
An optical waveguide fiber comprising:a core having a refractive index profile defined by a radius and a relative refractive index percent; and a clad layer surrounding and in contact with the core and having a refractive index profile defined by a radius and a relative refractive index percent; wherein the maximum relative refractive index of the core is within the range of from about 0.20% to about 0.35%; wherein the radius of the core is within the range of from about 4.0 &mgr;m to about 7.0 &mgr;m; wherein the core and the clad layer provide an effective area greater than about 90 &mgr;m2 at 1550 nm; and wherein the core has an alpha less than about 14.