Loss measurement device and loss measurement method

Abstract

A loss measurement device includes: a laser light source inputting light to one end of an optical fiber; a measurement unit measuring intensity of light outputted from the other end of the optical fiber; a bend applying unit inverting an extending direction of the optical fiber by bending with a predetermined bending radius; and a rotation unit rotating a section of the optical fiber bent by the bend applying unit on a central axis of the optical fiber, and a loss measurement method includes: rotating an optical fiber using a rotation unit; setting a bending angle indicating a bending direction of the optical fiber in a plane perpendicular to a central axis; and calculating a bending loss of the optical fiber on the basis of the intensity at a plurality of bending angles.

Dependencies are inferred from the claim text.