| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser beam transmission optical fiber structure capable of detecting leakage even if a laser beam has low power.SOLUTION: A laser beam transmission optical fiber structure C comprises: a laser beam transmission coated optical fiber 11; a tube body 12 through which the coated optical fiber 11 is inserted and which is formed of a resin material having a melting point of 220°C or lower; and a wire 13 composed of a combustible fiber imparted with conductivity that is provided at the outer periphery of the tube body 12 along a lengthwise direction. |
