OPTICAL ATTENUATOR, IN WHICH OFFSET IS PREVENTED

摘要

PURPOSE: An optical attenuator is provided to reduce the size of the optical attenuator by arraying an input optical fiber and an output optical fiber in parallel to each other. CONSTITUTION: An input optical fiber(2) and an output optical fiber(3) are installed in parallel to each other. Two reflecting sides(11a,11b) cross vertically to each other. The reflecting sides are used for reflecting incident rays of the input optical fiber to the output optical fiber. An actuator(6) is used for moving the reflecting sides. The reflecting sides are formed with one body. The actuator is used for moving the reflecting sides to the vertical direction to the input optical fiber.