Gradient of the Residual Stress distribution in the Mechanical Defect on the Optical Fiber Surface

광섬유 표면의 기계적 손상에 대한 잔류응력 분포의 변화

The gradient of the residual stress distribution in the mechanical defect on the optical fiber surface was investigated. This gradient of the residual stress distribution appeared in both of the core and the clad of the mechanical defect region on the optical fiber. The residual stress measurement was suggested as a investigation method of the mechanical defect on the optical fiber.