OPTICAL FIBER WITH LARGE EFFECTIVE AREA

摘要

An optical fiber comprising: a glass core extending from a centerline to a radius R₁; a glass cladding surrounding and in contact with the core, the cladding comprising: a first annular region extending from R₁ to a radius R₂, the first annular region comprising a radial width, W₂ = R₂ - R₁, a second annular region extending from R₂ to a radius R₃, the second annular region comprising a radial width, W₃ = R₃ - R₂, and a third annular region extending from R₃ to an outermost glass radius R₄; wherein (i) the core comprises a maximum relative refractive index, ?₁