| 摘要 |
PROBLEM TO BE SOLVED: To optimize shape configuration of an intermittently fixing material so that a proper side thrust can be imparted when an optical fiber held in a groove is intermittently fixed. SOLUTION: The optical fiber cable 1 includes: one groove slotted rod 7 having one groove 5 in which an optical fiber 3 is held inside; a longitudinally attached tape 13 covering an open part 11 of the groove 5 of the slotted rod 7; and a sheath 15 covering the periphery of the longitudinally attached tape 13 and the slotted rod 7. In the longitudinally attached tape 13 for the purpose of intermittently fixing the optical fiber 3 in the groove 5 of the slotted rod 7, UV resin 17 is prefixed intermittently in the longitudinal direction to install the intermittently fixing material 19. The cross section in the width direction of the intermittently fixing material 19 is provided such that the apex 19A of the intermittently fixing material 19 is arranged in the width direction of the longitudinally attached tape 13, wherein a relation between the height h to the apex 19A of the intermittently fixing material 19, the diameter D of the circumcircle of the whole optical fiber 3, and the depth H of the groove 5 is (h+D)-H≥H×0.05. COPYRIGHT: (C)2010,JPO&INPIT
|
