| 摘要 |
PCT No. PCT/JP92/00678 Sec. 371 Date Feb. 10, 1993 Sec. 102(e) Date Feb. 10, 1993 PCT Filed May 26, 1992 PCT Pub. No. WO92/21994 PCT Pub. Date Dec. 10, 1992.There is provided an improved branching section of a sheathed multicore optical fiber which is free from twisted and/or bent optical fiber cores during the operation of assembling the component of the branching section so that the operation may be carried out effectively and efficiently to provide a stable branching section of a sheathed multicore optical fiber. Such a branching section is established at an end of a sheathed multicore optical fiber by using stop rings 13, 23 having respective noncircular flanges 13, 22 and a sleeve 27 comprising a plurality of matching oblong members 28a, 28b. Since such a branching section 47 of a sheathed multicore optical fiber is established by using stop rings 12, 21 comprising respective noncircular flanges 13, 22 and a sleeve 27 comprising a plurality of matching oblong members 28a, 28b as well as other components, the branching section is free from any twisted and/or bent optical fiber cores and the operation of establishing such a branching section can be carried out effectively and efficiently to provide a stable branching section of a sheathed multicore optical fiber.
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