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Matching oil coated optical fiber end face automatic collimation and centering device and method

An optical fiber end face and optical fiber alignment technology, which is used in measurement devices, testing optical fiber/optical waveguide equipment, optical instrument testing, etc., can solve problems such as low production efficiency, high technical level and proficiency requirements, and extremely difficult automation processes. , to achieve the effect of solving low efficiency, good repeatability of the device, and improving the efficiency of automatic collimation

Inactive Publication Date: 2021-05-04
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, optical fiber testing with matching oil end-face coating still relies on manual operation, manual or automatic coupling of optical fiber end-faces. This production process requires high technical level and proficiency of operators, and the production efficiency is not high. Realize the automated process of fiber alignment and coupling test

Method used

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  • Matching oil coated optical fiber end face automatic collimation and centering device and method

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Embodiment 1

[0022] Embodiment one: if figure 1 As shown, in the embodiment of the present invention, a matching oil-coated optical fiber end face automatic alignment and centering device is provided, and a matching oil-coated optical fiber end face automatic alignment and centering device is provided, including three-axis displacement platforms on both sides, Optical fiber collimation fixtures on both sides, the first optical fiber end face image acquisition camera, the second optical fiber end face image acquisition camera and image processing and motion control unit, among which the left XYZ three-axis displacement platform is used to carry the left optical fiber collimation fixture and Realize XYZ three-way adjustment; the right XYZ three-axis displacement platform is used to carry the right fiber collimation fixture and realize XYZ three-way adjustment; the left fiber collimation fixture is used to clamp the left collimated coupling fiber; the right The side fiber collimation fixture ...

Embodiment 2

[0024] Embodiment 2: The embodiment of the present invention also provides a matching oil-coated optical fiber end face automatic alignment and centering method, the method includes the following steps,

[0025] Step 1: The first optical fiber end-face image acquisition camera collects real-time images with matching oil end faces and transmits them to the processing unit;

[0026] Step 2: Run the image filtering and denoising algorithm on the image to perform image processing;

[0027] Step 3: Run the image edge sharpening algorithm to locate the end surface envelope lines of the left and right optical fiber ribbons matching the oil;

[0028] Step 4: Search and run the fiber core envelope algorithm according to the fiber end surface envelope line to locate the center line of the fiber core;

[0029] Step 5: Process the orthogonal image of the second optical fiber end face image acquisition camera according to the same method as step 1 to step 4;

[0030] Step 6: Compare the ...

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Abstract

The invention discloses a matching oil coated optical fiber end face automatic collimation and centering device and method, in the device, a left side XYZ three-axis displacement platform is used for bearing a left side optical fiber collimation clamp and realizing XYZ three-direction adjustment; a right side XYZ three-axis displacement platform is used for bearing a right side optical fiber collimation clamp and realizing XYZ three-direction adjustment; a first optical fiber end face image acquisition camera and a second optical fiber end face image acquisition camera are orthogonally arranged by 90 degrees and are used for acquiring orthogonal end face images of optical fibers on two sides, and an image processing and motion control unit is used for receiving images sampled by the first camera and the second camera in real time, carrying out image algorithm processing and outputting a motion instruction, and controlling the left three-axis displacement platform and the right three-axis displacement platform to achieve optical fiber collimation, centering and coupling access. The device and the method are used for an automatic coupling link of an optical fiber production test link, automatic collimation and centering of the optical fiber with the end face coated with the optical fiber matching oil are completed, and finally optical fiber coupling is achieved.

Description

technical field [0001] The invention belongs to the technical field of optical fiber and cable production and testing, and in particular relates to an automatic alignment and centering device and method for coating an optical fiber end face with matching oil. Background technique [0002] In the field of optical fiber and cable manufacturing, intelligent equipment and production automation have become important steps for industrial upgrading. The production and testing process of optical fiber and cable involves many optical fiber technical parameters. The test and measurement of most technical parameters need to couple the optical fiber to the input port of the test equipment. The coupling process will introduce a large random insertion loss and increase the test uncertainty. Coating optical fiber matching liquid compensates for the test uncertainty caused by the difference in the refractive index of the end face. [0003] At present, optical fiber testing with matching oi...

Claims

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Application Information

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IPC IPC(8): G01M11/00
CPCG01M11/30
Inventor 于竞雄张智恒豆帅刘懋恂茅昕熊壮
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD