PROBLEM TO BE SOLVED: To provide a scanning type optical fiber whose signal cable is hard to be broken even when an endoscope is repeatedly bent and stretched.SOLUTION: A first fixing member 130 includes a cylindrical first support part 131, a tabular second support part 132, and a first connection part 133 to connect the first support part 131 and the second support part 132. An inner peripheral surface of the first support part 131 is fitted onto an outer peripheral surface of a piezoelectric actuator 110. A first side plane 134 is parallel to a center axis X. The second support part 132 perpendicularly protrudes from the first side plane 134 so as to be located outside of the center axis X by the amount of a diameter of a single mode optical fiber 120. The single mode optical fiber 120 is fixed on the side surface of the second support part 132 with an adhesive agent. Then a multi-core cable 160 is fixed on the outer side surface of the single mode optical fiber 120 and the first side plane 134. The single mode optical fiber 120 is linearly arranged on the center axis X.
