BUFFERED LARGE CORE FIBER

摘要

An optical fiber comprising: (i) a multi-mode silica based glass core, said core having a 80-300 µm diameter and an index of refraction n1; (ii) a cladding surrounding the core, said cladding having a thickness = 20 µm and index of refraction index of refraction n21, the cladding comprising (a) fluorine doped silica with relative index of refraction delta <0, or (b) a polymer with relative index of refraction delta <0; (iii) a protective coating, the protective coating having a Young's modulus greater than 700 MPa, a thickness = 15 µm, and an index of refraction index of refraction n3>n2; and (iv) a permanent buffer.