FIBER-FUSE BREAKING MEMBER, FIBER LASER, AND OPTIC

专利名称：FIBER-FUSE BREAKING MEMBER, FIBER

LASER, AND OPTICAL TRANSMISSION LINE

发明人：TAKENAGA, Katsuhiro申请号：EP09809537.5申请日：20090825公开号：EP2320254A1公开日：20110511

专利附图：

摘要：A fiber fuse terminator which is used to terminate a fiber fuse, comprising: anoptical fiber which includes a core and a cladding having holes extending in a longitudinaldirection thereof, in which: a refractive index of the core of the optical fiber is higher than

a refractive index of a portion of the cladding excepting portions of the holes; when it isassumed that a mode field diameter at a used wavelength of the optical fiber is MFD, anda distance in a cross section perpendicular to the longitudinal direction of the opticalfiber between a center of the core and a position, closest to the center of the core, of thehole that is closest to the core is Rmin, a value expressed by 2×Rmin/MFD is no less than1.2 and no more than 2.1; when it is assumed that a width, in a diameter direction, of aregion where the holes present in the cladding is W, a value expressed by W/MFD is noless than 0.3; and when it is assumed that a diameter of the cladding of the optical fiber isDfiber, W≤0.45×Dfiber is satisfied.

申请人：Fujikura, Ltd.

地址：5-1, Kiba 1-chome Kohtoh-ku Tokyo 135-8512 JP

国籍：JP

代理机构：Hodsdon, Stephen James

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