发明申请
US20090274428A1 Optical Fiber and a Method of Making 有权
光纤和制作方法

Optical Fiber and a Method of Making
摘要:
According to one example of the invention an optical fiber comprises: (i) a silica based core, said core having a core diameter greater than 80 μm and a numerical aperture NA≧0.24; and (ii) a silica based cladding in contact with and surrounding the core and having a second index of refraction n2, such that n1>n2; wherein the cladding includes B and F. Preferably the numerical aperture NA is at least 0.3.
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