Method for manufacturing optical fiber and optical fiber
AssigneeSumitomo Electric Industries, Ltd.
InventorsSuguru Takasaki, Hiroshi Kohda
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Abstract
A method for manufacturing an optical fiber, the method including: a stripping step of partially stripping a coating layer of the optical fiber; a splicing step of fusion-splicing an exposed end surface of a glass fiber; and a recoating step of recoating a protective resin covering a stripped portion of the coating layer and an exposed portion of the glass fiber, in which the stripping step is a step of irradiating the coating layer with a laser light to strip the coating layer.
Claims13
A method for manufacturing an optical fiber, the method comprising:
- a step of partially stripping a coating layer of the optical fiber;
- a step of fusion-splicing an exposed end surface of a glass fiber;
- and
- a step of recoating a protective resin covering a stripped portion of the coating layer and an exposed portion of the glass fiber,
- wherein the step of stripping is a step of irradiating the coating layer with a laser light to strip the coating layer,
- wherein the step of stripping is a step of processing an end portion of the coating layer into a tapered shape whose diameter is reduced toward the exposed portion of the glass fiber, and
- wherein the step of stripping is a step of repeating:
- a step of arranging a mask that allows the laser light to pass through only a predetermined region between the optical fiber and a light source of the laser light and scanning the mask in a direction perpendicular to an axial direction of the optical fiber and in a direction perpendicular to an irradiation direction of the laser light;
- and a step of rotating the optical fiber about an axis of the optical fiber to change an irradiation position of the laser light to the optical fiber.
A method for manufacturing an optical fiber, the method comprising:
- a step of partially stripping a coating layer of the optical fiber;
- a step of fusion-splicing an exposed end surface of a glass fiber;
- and
- a step of recoating a protective resin covering a stripped portion of the coating layer and an exposed portion of the glass fiber,
- wherein the step of stripping is a step of irradiating the coating layer with a laser light to strip the coating layer,
- wherein the step of stripping is a step of processing an end portion of the coating layer into a tapered shape whose diameter is reduced toward the exposed portion of the glass fiber, and
- wherein the step of stripping is a step of rotating the optical fiber about an axis of the optical fiber and irradiating the optical fiber with the laser light in a state where a mask that allows the laser light to pass through only a predetermined region is arranged between the optical fiber and a light source of the laser light.
An optical fiber in which a coating layer at an end portion, on a splicing side, of each of a pair of optical fibers is processed into a tapered shape, exposed end surfaces of glass fibers are fusion-spliced, and a periphery of exposed portions of the glass fibers is protected with a protective resin,
- wherein the tapered shape is a regular polygonal pyramid shape symmetrical with respect to an axis of the optical fiber.
Dependencies are inferred from the claim text.