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Fiber core auto-focusing method and system, and storage medium for processing fiber gratings

An automatic focusing and optical fiber grating technology, which is applied in cladding optical fiber, additive processing, optical waveguide and light guide, etc., can solve the problems that the fiber core cannot be automatically and accurately focused

Active Publication Date: 2021-08-20
INNOFOCUS PHOTONICS TECH PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a fiber core automatic focusing method and system for processing fiber gratings, and a storage medium, so as to solve the problem in the prior art that it cannot be automatically and accurately focused to the center position of the fiber core

Method used

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  • Fiber core auto-focusing method and system, and storage medium for processing fiber gratings
  • Fiber core auto-focusing method and system, and storage medium for processing fiber gratings
  • Fiber core auto-focusing method and system, and storage medium for processing fiber gratings

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Embodiment 2

[0067] This embodiment provides an automatic focusing system for fiber cores for laser processing fiber gratings, including: an image sensor, a three-dimensional translation stage and a controller.

[0068] The image sensor is used to collect images of the optical fiber to be processed on the three-dimensional translation platform in real time; the three-dimensional translation platform is parallel to the X axis and the Y axis, and perpendicular to the Z axis, and the X axis, the Y axis and the Z axis form a three-dimensional coordinate system. The image sensor may specifically be a CCD camera, which captures images / videos at a frame rate determined by camera specifications.

[0069] The three-dimensional translation platform is used to adjust the three-dimensional coordinate position of the optical fiber to be processed in the three-dimensional coordinate system according to the control command of the controller.

[0070] The controller uses the real-time images collected by ...

Embodiment 3

[0075] Those of ordinary skill in the art can understand that all or part of the steps in the above-mentioned surface automatic tracking method can be completed by instructions, or by instructions to control related hardware. processor for loading and execution.

[0076] For this reason, the embodiment of the present invention also provides a storage medium in which a plurality of instructions are stored, and the instructions can be loaded by the processor to perform the core auto-focusing for laser processing fiber grating provided by the embodiment of the present invention. in the steps.

[0077] Wherein, the storage medium may include: a read only memory (ROM, Read Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and the like.

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Abstract

The invention relates to the technical field of laser processing, and discloses a fiber core automatic focusing method and system for processing optical fiber gratings, and a storage medium. The method includes: collecting the image of the optical fiber to be processed on the three-dimensional translation stage in real time; adjusting the relative position of the optical fiber to be processed and the microscope lens in the Z-axis direction until two boundaries are formed between the core and the cladding in the image line; calculate the position of the center point of the two boundary lines on the three-dimensional translation platform, and adjust the position of the optical fiber to be processed on the three-dimensional translation platform accordingly until the center point coincides with the XY coordinates of the laser focus. The embodiment of the present invention can quickly and accurately find the center position of the fiber core to be processed through the image recognition technology, thereby ensuring the processing accuracy, improving the processing quality and success rate, and improving the processing efficiency. Because it is mainly realized by software, the hardware part only needs to use low-cost image sensors, and there is no need for major changes to the existing laser processing system, so the entire solution is cost-effective.

Description

technical field [0001] The invention relates to the technical field of laser processing, in particular to a fiber core auto-focusing method and system for processing fiber gratings, and a storage medium. Background technique [0002] Laser nano-processing, also known as laser nano-3D printing technology, has the advantages of simple processing equipment, no need for complex preparation processes and three-dimensional processing, and has become one of the most important emerging precision manufacturing technologies. [0003] Laser nano-3D printing technology, by using a microscope lens with high numerical aperture to focus the laser on the position to be processed, using the high light intensity at the focus, in different media (including polymers, glass, metal and new two-dimensional materials, etc.) Change material properties to process structures with nanoscale precision. [0004] Through femtosecond laser three-dimensional nano-printing technology, structures with differ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/268B29C64/393G02B6/02B33Y10/00B33Y50/02
CPCB29C64/268B29C64/393G02B6/02147B33Y10/00B33Y50/02
Inventor 林瀚贾宝华郑金传
Owner INNOFOCUS PHOTONICS TECH PTY LTD