| http://www.w3.org/ns/prov#value | - One aspect of the present invention relates to an optical fiber for the propagation of an optical signal having a wavelength, the optical fiber having a centerline, the optical fiber including a core surrounded by a cladding layer, the cladding layer having an outer radius rc and an average refractive index nc, the core including a central region disposed around the centerline of the fiber, the ce
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