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Method for winding high-precision polarization-maintaining optical fiber ring

A technology of polarization-maintaining optical fiber ring and winding method, which is applied in the field of optical fiber winding to achieve the effects of tight wire arrangement, uniform internal stress distribution, and reduced impact

Inactive Publication Date: 2018-03-30
CHINA ELECTRONICS TECH GRP NO 46 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the stress causes the photoelastic effect, which changes the refractive index of the fiber and causes non-reciprocal phase noise in the gyroscope

Method used

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  • Method for winding high-precision polarization-maintaining optical fiber ring
  • Method for winding high-precision polarization-maintaining optical fiber ring
  • Method for winding high-precision polarization-maintaining optical fiber ring

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0030] (1) Prepare a panda-type polarization-maintaining optical fiber with a coating outer diameter of 165 μm, and wind the optical fiber on a splitter ring with an inner diameter of 50 mm under a tension of 3 g and a rotation speed of 100 rpm;

[0031] (2) Under the tension of 3g and the rotation speed of 100rpm, wind half the length of the optical fiber on the first splitter ring onto the second splitter ring;

[0032] (3) Fix the wound splitting ring on the semi-automatic high-precision winding machine;

[0033] (4) Set the tension on the winding machine to 7g, start winding from the midpoint of the fiber of a split ring, and rotate at 30rpm;

[0034] (5) Winding according to the cycle of sixteen-level symmetry, at the beginning of each layer, take off the splitter ring, and rotate the splitter ring in the opposite direction of the twisting and spiraling of the fiber until the fiber sags naturally;

[0035] (6) Repeat the sixteen-level winding to the specified number of l...

no. 2 example

[0037] (1) Prepare a panda-type polarization-maintaining optical fiber with a coating outer diameter of 245 μm, and wind the optical fiber on a splitter ring with an inner diameter of 50 mm under a tension of 5 g and a rotation speed of 200 rpm;

[0038] (2) Under the tension of 5g and the rotation speed of 200rpm, the half length of the optical fiber on the first splitter ring is wound onto the second splitter ring;

[0039] (3) Fix the wound splitting ring on the semi-automatic high-precision winding machine;

[0040] (4) Set the tension on the winding machine to 9g, start winding from the midpoint of the fiber of a split ring, and rotate at 60rpm;

[0041] (5) Winding according to the cycle of sixteen-level symmetry, at the beginning of each layer, take off the splitter ring, and rotate the splitter ring in the opposite direction of the twisting and spiraling of the fiber until the fiber sags naturally;

[0042] (6) Repeat the sixteen-level winding to the specified number ...

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Abstract

The invention discloses a method for winding a high-precision polarization-maintaining optical fiber ring. The method comprises the following steps: step 1, carrying out fiber splitting winding, namely winding a polarization-maintaining optical fiber on a fiber splitting ring from an optical fiber barrel, and winding the optical fiber on two fiber splitting rings from the middle point of the optical fiber; step 2, fixing the fiber splitting rings on a winding machine; and step 3, winding the polarization-maintaining optical fibers on the fixed fiber splitting rings on a ring framework by adopting a sixteen-stage symmetrical winding method. According to the method provided by the invention, a sixteen-stage symmetrical method is adopted for winding, tension fluctuation is controlled in a winding process, the wound polarization-maintaining optical fiber ring is tightly arranged, the internal stress distribution is uniform, and the external torsion of the optical fiber can be reduced in the winding process.

Description

technical field [0001] The invention relates to an optical fiber wrapping technology, in particular to a high-precision polarization-maintaining optical fiber wrapping method. Background technique [0002] The fiber optic gyroscope has developed into a new mainstream instrument with epoch-making characteristics in the field of inertial technology. Due to overcoming the latch-up effect of the laser gyroscope, it has high detection sensitivity and resolution, short start-up time, wide dynamic range, simple structure, few parts and volume. It has the advantages of small size, low cost and high reliability, and has wide application prospects in the fields of aviation, aerospace and weapon equipment. Therefore, many countries have vigorously developed fiber optic gyroscope technology as a key technology, making fiber optic gyroscope one of the most important inertial devices in the 21st century. The optical route of the fiber optic gyroscope is composed of five components: light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/72
CPCG01C19/72
Inventor 吴博庞璐吴迪王树宇刘军号
Owner CHINA ELECTRONICS TECH GRP NO 46 RES INST