Optical power distributor and method for manufacturing the same

摘要

A pair of optical fibers are arranged parallel in contact. A portion of the pair is thermally fused to form a biconical taper waist. The biconical taper waist is cleaved at its thinnest portion, thus dividing the pair of optical fibers into two sections each having a tapered portion at one end. One of the sections is rotated by 90 DEG , and its tapered portion is butted on the tapered portion of the other section, while keeping the axes of both sections aligned. The tapered portions thus butted are then thermally fused to couple the sections together, thus providing an optical power distributor. At the thinnest portion of the waist, one of the cores of one section overlaps both cores of the other section.