Fiber bragg grating manufacturing device and method

A fiber grating and optical fiber technology, which is applied in the directions of cladding fiber, optical waveguide light guide, light guide, etc., can solve the problems of power loss and crystal damage.

Pending Publication Date: 2020-06-02
WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a device and method for fabricating fiber gratings, which are used to solve or partially solve the problems of se

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  • Fiber bragg grating manufacturing device and method
  • Fiber bragg grating manufacturing device and method

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected...

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Abstract

The invention relates to the technical field of fiber bragg grating manufacturing, and discloses a fiber bragg grating manufacturing device and method. The Fiber bragg grating manufacturing device comprises a light path immersion tool, the light path immersion tool comprises a hollow body, the body is filled with liquid with a preset refractive index, the body is provided with two channels which are symmetrically arranged and used for allowing photosensitive fibers to penetrate through, and the body is internally provided with a coating stripping window coaxial with the channels; a phase maskplate is arranged in the body, so that the photosensitive optical fiber is made into a fiber bragg grating. The invention provides the Fiber bragg grating manufacturing device and method. A phase maskplate and a photosensitive optical fiber are completely immersed into a prepared liquid; non-ultraviolet coherent light beams are converted into deep-ultraviolet coherent light beams, meanwhile, bright and dark stripes are generated under the action of the phase mask plate, corresponding periodic refractive index modulation is formed on a fiber core of the photosensitive optical fiber, and finally the purpose of manufacturing the fiber bragg grating is achieved.

Description

technical field [0001] The invention relates to the technical field of fiber grating manufacturing, in particular to a device and method for manufacturing fiber gratings. Background technique [0002] Fiber Bragg grating uses the photosensitivity of the fiber material to write the incident light and dark patterns into the fiber core by means of ultraviolet light exposure, and generates a periodic distribution of the refractive index along the fiber core axis in the fiber core, thereby forming a permanent spatial phase The function of the grating is essentially to form a narrow-band filter or mirror in the fiber core. When a beam of wide-spectrum light passes through a fiber Bragg grating, the light with a wavelength satisfying the Bragg condition of the fiber Bragg grating will be reflected, and the light of other wavelengths will continue to transmit through the fiber Bragg grating. [0003] Due to the limitation of optical fiber photosensitivity wavelength, the writing la...

Claims

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Application Information

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IPC IPC(8): G02B6/02
CPCG02B6/02123G02B6/02138
Inventor 戴立伟闫大鹏曹磊
Owner WUHAN RAYCUS FIBER LASER TECHNOLOGY CO LTD
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