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Novel guidance optical cable and manufacturing method thereof

An optical cable and a new technology, applied in the field of new guided optical cable and its preparation, can solve the problems of large outer diameter of optical cable, impractical application, poor anti-aging ability, etc., and achieve excellent mechanical properties, low loss, and good micro-bending performance Effect

Inactive Publication Date: 2016-01-13
JIANGSU HENGTONG PHOTOELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional guide optical cable is formed by weaving glass yarn or aramid yarn or wrapping it on the surface of the optical fiber, and then curing by heat or ultraviolet light (UV). Practical applicability
[0004] Commonly used optical cable outer protective layer materials such as polyethylene and polyvinyl chloride have poor anti-aging ability and are brittle at low temperature when the thickness is very thin (such as 0.1mm); while nylon and other materials with strong anti-aging ability have poor low-temperature performance improved, but due to the thermal expansion coefficient of nylon as high as 10 -4 / ℃, than the thermal expansion coefficient of optical fiber 10 -6 / ℃ is 2 orders of magnitude higher, resulting in a large micro-bending loss of the optical cable at low temperature

Method used

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  • Novel guidance optical cable and manufacturing method thereof
  • Novel guidance optical cable and manufacturing method thereof

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Effect test

Embodiment 1

[0033] Such as figure 1 As shown, it is a novel guiding optical cable according to this embodiment, comprising: an optical fiber 1, a coating 2 and an outer protective layer 3, wherein the coating 2 is an acrylic resin layer, and the outer protective layer 3 is a liquid crystal polymer Material PET / PHB liquid crystal copolyester layer. The acrylic resin layer can not only protect the surface of the optical fiber 1 from being scratched by moist gas and external force, but also endow the optical fiber 1 with improved microbending resistance and reduce the additional loss of the optical fiber 1 due to microbending. At the same time, the coating process is simple, the stability is good, the compatibility with the PET / PHB liquid crystal copolymer of the material of the optical fiber 1 and the outer protective layer 3 is good, and the interface between the layers is firmly bonded, which better protects the optical fiber 1 . The outer protective layer 3 is made of PET / PHB liquid cry...

Embodiment 2

[0041] Such as figure 2 Shown, a kind of preparation method of novel guiding optical cable as described in embodiment 1, comprises the steps:

[0042] S1: Coating a layer of acrylic resin on the outer surface of the optical fiber; specifically, during the downward drawing process of the optical fiber, a layer of acrylic resin with a thickness of 0.013 mm to 0.017 mm is coated on the surface of the bare optical fiber through a pressure coater. Among them, the temperature of the acrylic resin and the mold in the pressure coater is 45 ℃ ~ 60 ℃, and the whole set of mold is composed of a guide mold, a die, and a sizing mold, and the processing accuracy of each mold is extremely high. The acrylic resin is an optical fiber surface coating material with simple coating process, good stability, good compatibility with the optical fiber and the outer protective layer material PET / PHB liquid crystal copolymer, and the interlayer interface is firmly bonded, more Good protection of fiber...

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Abstract

The invention discloses a novel guidance optical cable and a manufacturing method thereof. Acrylate is adopted as a coating material, PHB / PET liquid crystalline copolyester serves as an outer protection layer material, and an extrusion process is adopted to manufacture a guidance optical cable. Compared with the traditional guidance optical cable, the guidance optical cable of the invention has the advantages that the diameter is small, the loss is low, the micro-bending performance is good, the mechanical performance is excellent, the one-time cabling length is long (10km to 26km), the storage time is long, the manufacturing process is simple, and the use temperature range is wide.

Description

technical field [0001] The invention relates to the technical field of guiding optical cables, in particular to a novel guiding optical cable and a preparation method thereof. Background technique [0002] Metal wires are usually used as information transmission between guided weapons such as torpedoes and missiles and operating platforms. With the rapid development of optical cable technology, optical cable guidance technology has a tendency to replace metal wires due to its many advantages, and has become a research topic in various countries. focus. Guidance optical cable is a guidance method that uses optical cable as the information transmission medium to realize information transmission between missiles and operating platforms. It has the characteristics of high precision, good concealment, simple structure, strong anti-interference ability, and flexible use. [0003] The characteristic of optical cable guidance is that when the missile is flying or underwater, the op...

Claims

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Application Information

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IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4479G02B6/4402G02B6/02395G02B6/4486G02B6/4436G02B6/44
Inventor 刘沛东曹朋张增强尹纪成轩传吴吴俊雄沈新华李强潘红舟吴迪王中凯徐姗孙丽华
Owner JIANGSU HENGTONG PHOTOELECTRIC