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Drawing method for automatically controlling cutoff wavelength and control system

A cut-off wavelength and wire drawing technology, applied in the field of optical fiber manufacturing, can solve problems such as hysteresis, and achieve the effect of reducing tension, reducing hysteresis and reasonable design

Active Publication Date: 2013-04-10
郑州天河通信科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional wire drawing method controls the cut-off wavelength in the wire drawing process by changing the temperature, and controls the cut-off wavelength by the required temperature, which has a certain hysteresis

Method used

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  • Drawing method for automatically controlling cutoff wavelength and control system
  • Drawing method for automatically controlling cutoff wavelength and control system

Examples

Experimental program
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Embodiment Construction

[0025] Refer to attached figure 1 , 2 , a control system for automatically controlling the cut-off wavelength drawing method includes an optical fiber preform (1), a drawing furnace (2), a tension testing instrument (3), an optical fiber drawing machine (4), a drawing line controller (5), and a data transmission A network cable (6) and an optical fiber test instrument (7).

[0026] The optical fiber preform (1) is installed on the upper part of the drawing furnace (2). During production, the optical fiber preform (1) is inserted into the hot zone of the furnace cavity of the drawing furnace (2), and the drawing furnace (2) is installed in the fiber drawing machine (4). In the upper part, the optical fiber testing instrument (7) is installed on the side of the optical fiber drawing machine (4), and the optical fiber produced by the optical fiber drawing machine is measured at the optical fiber testing instrument. On the wire drawing machine (4), the optical fiber test instr...

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Abstract

The invention relates to the technical field of optical fiber manufacturing, in particular to a drawing method for automatically controlling a cutoff wavelength and a control system, and provides a novel drawing method and a novel drawing control system. The control system comprises an optical fiber preform, a fiber drawing furnace, a tension tester, an optical fiber drawing machine, a drawing production line controller, a data transmission cable and an optical fiber test instrument, wherein the optical fiber preform is mounted at the upper part of the fiber drawing furnace and is inserted into a hot zone of a furnace chamber of the fiber drawing furnace during production; the fiber drawing furnace is mounted at the upper part of the optical fiber drawing machine; the optical fiber test instrument is mounted on one side of the optical fiber drawing machine; optical fibers produced by the optical fiber drawing machine are measured by the optical fiber test instrument; the tension tester is mounted on the optical fiber drawing machine that is arranged at the lower part of the fiber drawing furnace; the optical fiber test instrument is connected with the drawing production line controller through the data transmission cable; the tension tester is connected with the drawing production line controller through a communication cable; and the drawing production line controller is connected with the wire drawing furnace through a control line.

Description

technical field [0001] The invention relates to the optical fiber manufacturing industry, in particular to a wire drawing method and control system for automatic control of cut-off wavelength, is a new type of wire drawing method, and provides a new type of wire drawing control system. Background technique [0002] Single-mode fiber usually has a certain wavelength. When the wavelength of the transmitted light exceeds this wavelength, the fiber can only transmit light of one mode. This wavelength is called the cut-off wavelength. The cut-off wavelength is determined by the structural parameters of the preform. In optical fiber production, the cut-off wavelength is an extremely important drawing control parameter. The traditional wire drawing method controls the cut-off wavelength in the wire drawing process by changing the temperature, and controls the cut-off wavelength by the required temperature, which has a certain hysteresis. In the drawing process, controlling the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/025C03B37/07
Inventor 赵鹏朱海洋张帆贾泽峰朱刘盅薛驰刘志忠曹珊珊
Owner 郑州天河通信科技有限公司
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