Patent ID: 8923677

Claim:
A fiber optic jumper cable having a central axis, comprising: a bend-resistant optical fiber generally arranged along the central axis, wherein the bend resistance of the optical fiber is such that: with one turn around a 10 mm diameter mandrel, the bend-resistant optical fiber exhibits an attenuation increase of less than 0.5 dB at a wavelength of 850 nm; with one turn around a 15 mm diameter mandrel, the bend-resistant optical fiber exhibits an attenuation increase of less than 0.2 dB at a wavelength of 850 nm; and with one turn around a 20 mm diameter mandrel, the bend-resistant optical fiber exhibits an attenuation increase of less than 0.1 dB at a wavelength of 850 nm; a tensile-strength layer surrounding the bend-resistant optical fiber; and a protective cover surrounding the tensile-strength layer and having an outside diameter DO in the range 1.6 mm≦DO≦4 mm, wherein the protective cover is a protective outer layer in the form of a cable jacket, wherein the protective cover comprises polyethylene, and wherein the protective cover is formed from at least 80% polyethylene.