Patent ID: 8301001
Filing Date: 2012-10-30
Classification: G02B

Abstract:
1. An optical cable comprising: an optical fiber; and a sheath covering the optical fiber, said optical fiber comprising a core having a refractive index n wherein, with respect to the refractive index n wherein the inner radius r and the inner radius r 2 of the second cladding is equal to or greater than 8 μm, and wherein the bending loss at a wavelength of 1550 nm and at a radius of curvature of 7.5 mm is smaller than 0.1 dB/turn, and the bending loss at a wavelength of 1625 nm and at a radius of curvature of 4 mm is greater than 0.1 dB/turn, and wherein a loss increase is smaller than 0.1 dB/km at a wavelength of 1550 nm and at a temperature of −30° C.