Patent ID: 7773848
Filing Date: 2010-08-10
Classification: G02B

Abstract:
1. An optical fiber comprising: a glass core extending from a centerline to a radius R a glass cladding surrounding and in contact with the core, the cladding comprising: wherein the core comprises a relative refractive index, Δ wherein the annular inner region comprises a radial width, W wherein the annular ring region comprises: wherein Δ wherein 0.45 <R wherein the annular ring region comprises a profile volume, V wherein V 3 isgreater than 40%-μm 2 , the core and the cladding provide a cable cutoff less than 1260 nm, a zero dispersion between 1300 and 1324 nm, a mode field diameter at 1310 nm of between 8.20 and 9.50 μm, and a 10 mm diameter mandrel bend loss of less than 1.0 dB/turn.