| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical fiber capable of arbitrarily arranging a hole position to be disposed at a clad at a position different from the core center. <P>SOLUTION: In a method in which an optical fiber preform 20 whose at least center part is composed of a bundle of a quartz rod and a quartz tube is prepared and the optical fiber preform is drawn to manufacture the optical fiber having a plurality of holes around the core, at least one of the quartz tube consisting of the optical fiber preform is the quartz tube having an eccentric hole. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
