LOW BEND LOSS OPTICAL FIBER

摘要

An optical fiber having both low macrobend loss and low microbend loss. The fiber has a first inner cladding region having an outer radius r2>8 microns and refractive indexΔ2 and a second outer cladding region surrounding the inner cladding region having refractive indexΔ3, whereinΔ1>Δ3>Δ2. The difference betweenΔ3 andΔ2 is greater than 0.01. The fiber exhibits a 22 m cable cutoff less than or equal to 1260 nm, and r1/r2 is greater or equal to 0.25.