Manufacturing method of twisted optical fiber

A technology for twisting optical fibers and manufacturing methods, applied in manufacturing tools, glass manufacturing equipment, etc., can solve the problems of slow wire drawing speed, uncontrollable wire drawing quality, and difficult to control wire diameter thickness, so as to reduce equipment requirements, ensure optical performance, reduce The effect of production difficulty

Active Publication Date: 2013-10-23
上海康阔光智能技术有限公司
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Problems solved by technology

Although reducing the wire drawing speed can reduce the rotation speed of the preform, but the wire drawing speed is too slow, and the quality of the wire drawing cannot be controlled, especially the thickness of the wire diameter is difficult to control. Some special optical performance requirements cannot be met, and p

Method used

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  • Manufacturing method of twisted optical fiber
  • Manufacturing method of twisted optical fiber
  • Manufacturing method of twisted optical fiber

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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The manufacturing method of the twisted optical fiber provided by the present invention, such as image 3 shown, including the following steps:

[0024] 1) Prepare an optical fiber preform according to the conventional process. The optical fiber preform is a single-mode or eccentric optical fiber or a triple-stress or multi-stress or high birefringence polarization-maintaining optical fiber preform, and a high-birefringence polarization-maintaining optical fiber preform includes a stress double Refractive preforms and geometric birefringent preforms;

[0025] 2) use figure 1 In the traditional drawing process shown, the optical fiber preform is processed into a primary optical fiber 5, and the diameter of the primary optical fiber 5 is usually 2-20 times the diameter of the twisted optical fiber, but not limited to 20 times. ...

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Abstract

The invention discloses a manufacturing method of a twisted optical fiber, which comprises the following steps of: 1) performing heating and first wiredrawing on an optical fiber perform to form a primary optical fiber of which the diameter is greater than that of the twisted optical fiber, wherein the optical fiber perform is in a non-rotation state in the first wiredrawing process; and 2) rotating the primary optical fiber, and performing heating and second wiredrawing on the primary optical fiber to form a twisted optical fiber; or keeping the primary optical fiber not rotating, performing heating and second wiredrawing on the primary optical fiber to form a secondary optical fiber, and rotating the secondary optical fiber to form a twisted optical fiber. The method disclosed by the invention greatly reduces the production difficulty, can guarantee the wiredrawing quality and the optical performance of the twisted optical fiber, and saves the cost.

Description

technical field [0001] The invention relates to twisted optical fibers, in particular to a manufacturing method of twisted optical fibers. Background technique [0002] Since the birth of optical fiber in Corning Corporation of the United States in the mid-1970s, it has been rapidly developed and applied in many fields, especially in the field of communication. Optical fiber has entered thousands of households in all countries in the world. Significant applications, of which fiber optic gyroscope is a good example. We know that the standard optical fiber diameter is generally around 125um. Depending on the application, sometimes it needs to be thinner, sometimes it needs to be thicker, generally ranging from 40um to 1000um (1mm). These optical fibers are usually drawn from a pre-prepared preform rod (also known as a master rod), and the size (thickness and length) of the preform rod will vary according to different preparation methods. The smallest diameter of the preform ...

Claims

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Application Information

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IPC IPC(8): C03B37/14
Inventor 黄勇
Owner 上海康阔光智能技术有限公司
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