US 2019/0047239 A1 · MANUFACTURING DEVICE AND MANUFACTURING METHOD OF OPTICAL FIBER GRATING

Abstract

A manufacturing device of an optical fiber grating to write a grating in a core of an optical fiber by irradiating the optical fiber with laser light includes: a fixing device that fixes the optical fiber to at least one of a first position located more on an upstream side and a second position located more on a downstream side in a conveyance direction of the optical fiber than a laser light irradiating position of the optical fiber in a case of writing the grating; and a feeder having a structure capable of linearly reciprocating in the conveyance direction and adapted to feed a predetermined length of the optical fiber in the conveyance direction in a case where a fixed state of the optical fiber by the fixing device is released.

Claims14

Dependent claims

A manufacturing device of an optical fiber grating writing a grating in a core of an optical fiber by irradiating the optical fiber with laser light, the device comprising:

a fixing device configured to fix the optical fiber to at least one of a first position located more on an upstream side and a second position located more on a downstream side in a conveyance direction of the optical fiber than a laser light irradiating position of the optical fiber in a case of writing the grating;
and
a feeder configured to be capable of linearly reciprocating in the conveyance direction and configured to feed a predetermined length of the optical fiber in the conveyance direction in a case where a fixed state of the optical fiber by the fixing device is released.

A manufacturing method of an optical fiber grating, comprising:

fixing an optical fiber to at least one of a first position located more on an upstream side and a second position located more on a downstream side in a conveyance direction of the optical fiber than a laser light irradiating position of the optical fiber in order to write a grating in a core of the optical fiber;
irradiating the irradiating position with the laser light;
releasing a fixed state of the optical fiber at the first position and the second position;
and
feeding a predetermined length of the optical fiber in the conveyance direction by using a feeder having a structure capable of linearly reciprocating in the conveyance direction.

2 more elements

Dependencies are inferred from the claim text.

Manufacturing device and manufacturing method of optical fiber grating

Life of this patent

Manufacturing device and manufacturing method of optical fiber grating

Life of this patent

Abstract

Claims14