OPTICAL FIBER CONNECTOR

摘要

PURPOSE:To enable the prevention of reflection without connection loss by polishing obliquely the end face of an optical fiber connector except the half or less of the ferrule end face. CONSTITUTION:The ferrule 6 of an optical fiber connector consists of an optical fiber cable 7 and an optical fiber positioning key 9 and its end 10 is polished together with an optical fiber 8 except the half or less of the surface 11 at a right angle to the optical axis obliquely at an angle theta. The central axis 12 of the polished surface is rotated by alpha deg. relatively to the key 9. Since the gap G of the fiber 8 is obliquely polished except the plane at the ferrule end, the gap can be made smaller than in the prior art wherein the ferrule end is sloped over the entire surface. The connection loss of light at the gap G is thus decreased. It is possible to evaluate the gap-component of the optical fiber due to the finishing by polishing by measuring the distance from the center of the fiber up to the ridgeline where the slope and the end face intersect and the angular deviation of both faces.