Small-diameter Optical Fibers with Coating Diameter of 125 mu m

摘要

We have developed small-diameter optical fibers with cladding diameter and outer coating diameter of 80 |um and 125 um, respectively. In order to investigate the bending property, the numerical aperture (NA) of the newly developed single-mode (SM) fibers was varied from 0.12 to 0.22. For a small-diameter optical fiber with the same index profile at the core region as that of a conventional SM fiber, the bending loss was similar to that of a conventional SM fiber. For a fiber with a high NA (0.22), bending loss was less than 0.1 dB at the bending radius of 5 mm. The newly developed fibers also showed good environmental reliability.