| http://www.w3.org/ns/prov#value | - An optical fiber cable, which comprises:a plurality of optical fibers which extend in a direction substantially along a longitudinal axis of the cable, each of said optical fibers including a core, an outer cladding, and an inner cladding having an index of refraction which is less than that of the outer cladding and being characterized by a difference between the indices of refraction of said cor
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