| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical fiber coil stable in transmission characteristics. SOLUTION: This optical fiber coil is provided with optical fibers 32, a housing casing 80 for housing the optical fibers 32 coiled into a coil bundled state, and a filler 84 filled within the housing casing 80. The parts of the filler 84, coming into contact with the optical fibers, are formed into liquid or semi-liquid parts 84a. |
