ROD BUNDLE AND METHOD OF MANUFACTURING OPTICAL FIBER

    公开(公告)号:US20180251391A1

    公开(公告)日:2018-09-06

    申请号:US15891130

    申请日:2018-02-07

    申请人: FUJIKURA LTD.

    发明人: Ryohei Fukumoto

    摘要: A rod bundle includes a core-clad rod that includes a core rod and a cladding layer that covers the core rod, a plurality of first filling rods disposed around the core-clad rod to be in contact with the core-clad rod, and two second filling rods that are disposed opposite to each other and interposing the core-clad rod therebetween to be distant from the core-clad rod and form first spaces with the core-clad rod. The rod bundle also includes a pair of second spaces that are next to the core-clad rod are formed to interpose the core-clad rod therebetween in a direction perpendicular to a direction in which the two second filling rods are opposite to each other and, in a transverse plane, an area of each of the first spaces is more than an area of each of second spaces.