Patent ID: 9348087
Filing Date: 2016-05-24
CPC Classification: C03B,G02B

Claim Text:
1. A bend insensitive single-mode optical fiber, comprising: a core layer; and cladding layers surrounding the core layer, wherein a diameter, a, of the core layer is between 7 μm and 7.9 μm, and a relative refractive index difference Δ wherein the cladding layers surrounding the core layer comprises an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer and an outer cladding layer surrounding the trench cladding layer; wherein a diameter, b, of the inner cladding layer is between 15 μm and 17 μm, and a relative refractive index difference Δ wherein a diameter, c, of the trench cladding layer is between 24 μm and 33 μm, and a relative refractive index difference Δ