Optical fiber and manufacturing method and identifying method of optical fiber

An optical fiber and color indicator technology, applied in clad optical fibers, glass optical fibers, optics, etc., can solve the problems of affecting optical fiber performance, optical fiber coating refractive index, complex optical fiber coating, environmental and human hazards, etc.

Active Publication Date: 2014-01-22
SHANGHAI PHICHEM MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The markers used in the method of identifying optical fiber coatings by infrared spectroscopy will affect the performance of the optical fiber itself to a certain extent, and at the same time, such markers will volatilize to a certain extent during the storage and use of optical fibers, causing harm to the environment and human body; The steps of marking the optical fiber coating by the difference in the refractive index of the optical fiber coating are relatively cumbersome

Method used

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  • Optical fiber and manufacturing method and identifying method of optical fiber
  • Optical fiber and manufacturing method and identifying method of optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Preparation of optical fiber with inner coating containing chromogenic indicator:

[0050] Adding phenolphthalein to the inner layer paint, the added mass of phenolphthalein is 0.0001% of the mass of the inner layer paint, stirring until the phenolphthalein is completely dissolved to obtain the inner layer paint containing phenolphthalein. Pass the inner coating containing phenolphthalein and the outer coating without any indicator through the fiber drawing tower at a certain diameter, speed and energy according to the figure 1 The structure is coated, drawn and solidified to form the optical fiber.

[0051] Methods for identifying optical fibers coated with chromogenic indicators:

[0052] Cut off 0.001g of optical fiber, and peel off the coating outside the core of this part of the optical fiber as the sample to be tested;

[0053] Mix and stir the sodium hydroxide aqueous solution with a mass concentration of 0.01% and methanol according to the volume ratio of 1:99...

example 2

[0056] Preparation of an optical fiber with an outer coating containing a chromogenic indicator:

[0057] Add phenolphthalein to the outer coating, the added mass of phenolphthalein is 10% of the mass of the outer coating, and stir until the phenolphthalein is completely dissolved to obtain the outer coating containing phenolphthalein. Pass the outer coating containing phenolphthalein and the inner coating without any indicator through the fiber drawing tower at a certain diameter, speed and energy according to the figure 1 The structure is coated, drawn and solidified to form the optical fiber.

[0058] Methods for identifying optical fibers coated with chromogenic indicators:

[0059] Cut off 1g of optical fiber, and peel off the coating outside the core of this part of the optical fiber as the sample to be tested;

[0060] The sodium hydroxide aqueous solution that mass concentration is 10% is standby as chromogenic solution;

[0061] Soak the sample to be tested in 10ml...

example 3

[0063] Prepare a ribbon-coated optical fiber containing a color indicator:

[0064] Adding phenolphthalein to the tape layer coating, the added mass of phenolphthalein is 0.01% of the mass of the tape layer coating, stirring until the phenolphthalein is completely dissolved to obtain the tape layer coating containing phenolphthalein. Pass the layered coating containing phenolphthalein through the fiber drawing tower at a certain diameter, speed and energy according to the figure 2 The structure is coated on the outside of the optical fiber 6, drawn and cured to form an optical fiber.

[0065] Methods for identifying optical fibers coated with chromogenic indicators:

[0066] Cut off 1g of the bundled optical fiber, and peel off the bundled coating of this part of the bundled fiber with a sharp knife as the sample to be tested;

[0067] Mix and stir the sodium hydroxide aqueous solution with a mass concentration of 0.1% and methanol according to the volume ratio of 1:1 and u...

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Abstract

The invention discloses an optical fiber and a manufacturing method and an identifying method of the optical fiber, and belongs to the field of the optical fiber. At least one coating layer of the optical fiber contains a color-developing indicator which is one of or combination of more than one of an acid-base indicator, a redox indicator and a complexing indicator. In the production process of the optical fiber, the color-developing indicator is added to the coating layer of the optical fiber so that the coating layer of the optical fiber is marked, and the optical fiber is further marked. A color-developing reaction is generated when the indicator meets a corresponding color-developing solution so that color of the color-developing solution develops. As other optical fibers do not possess the property, the optical fiber can be easily identified via the color-developing reaction so that marking and protection of the optical fiber are facilitated. The color-developing indicator is friendly to environment so that environmental pollution is not caused. The color-developing reaction is easy and rapid to operate and high in sensitivity. Color can develop with only a small amount of color-developing indicator so that performance of the coating layer of the optical fiber is not affected due to the small adding amount of the color-developing indicator.

Description

technical field [0001] The invention relates to the field of optical fibers, in particular to an optical fiber and a method for manufacturing and identifying the optical fiber. Background technique [0002] Optical fiber is the abbreviation of optical fiber, which is a light transmission tool achieved by the principle of total reflection of light in fibers made of glass or plastic. The light beam is transmitted in the optical fiber, the signal is free from electromagnetic interference, and the transmission is stable. Optical fiber has the characteristics of reliable performance, high quality, fast speed, low line loss, and long transmission distance. It is suitable for high-speed networks and backbone networks. [0003] An optical fiber generally includes a core and at least one layer of coating covering the core. see figure 1 , The core 1 includes a glass fiber 2 and a cladding 3 covering the glass fiber 2 . Conventional optical fibers are typically coated with two supe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/02G01N21/78
CPCG01N21/78G02B6/02G02B6/02395G02B6/448G02B6/4482
Inventor 于凯杰池萍严帅
Owner SHANGHAI PHICHEM MATERIAL CO LTD
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