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H-GI-POF high-temperature optical fiber and preparation method thereof

An optical fiber, h-gi-pof technology, applied in the direction of light guide, cladding fiber, fiber chemical characteristics, etc., can solve the problems of high cost, small core diameter of glass fiber, complicated connection, etc., and achieve fast transmission speed and transmission delay. The effect of short time and large signal transmission bandwidth

Pending Publication Date: 2021-01-12
中闽光纤科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the existing problems of small core diameter of glass optical fiber, complex connection, high cost, and ultra-low communication speed of metal cables, the present invention provides a h-GI-POF high-temperature optical fiber and its preparation method

Method used

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  • H-GI-POF high-temperature optical fiber and preparation method thereof
  • H-GI-POF high-temperature optical fiber and preparation method thereof
  • H-GI-POF high-temperature optical fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as image 3 As shown, the synthesis of high polymer X1

[0039] The high polymer X1 is synthesized according to the free radical polymerization route, and the free radical is provided by the thermal decomposition of perfluorodibenzoyl peroxide PFDBPO.

[0040] S101: Add n moles of monomer M8A: perfluoro-2-methyl-4,5-methyl ether group-1,3-dioxolane, m moles of monomer M8E: perfluoro-3- Methylene-2,4-dioxin bicyclo[4,3,0]nonane, initiator, wherein n:m=35-90:10-65; the initiator includes perfluorodibenzoyl peroxide , the mass percentage of the initiator is 0.05-0.15%;

[0041] That is, in a small reactor with good airtightness, add 244.8 grams (0.90mol) of M8A monomer and 35.6 grams (0.10mol) of M8E monomer, and then add 0.280 grams (0.1%, w / w) of the initiator;

[0042] S102: Stir and clean with nitrogen gas. After cleaning, the reactor is depressurized to 0.35-0.95 atmospheric pressure, and heated to 60-90°C for polymerization reaction. The reaction time is 20-4...

Embodiment 2

[0047] Such as image 3 As shown, the synthesis of high polymer X2

[0048] The high polymer X2 is synthesized according to the free radical polymerization route, and the free radical is provided by the thermal decomposition of perfluorodibenzoyl peroxide PFDBPO.

[0049] The difference between this example and Example 1 is: the molar mass of M8A monomer and M8E monomer, in this example, 217.6 grams (0.8 mol) of M8A monomer, 71.2 grams (0.2 mol) of M8E monomer, and 0.290 grams of initiator After the polymerization reaction, the high polymer X2 is obtained, the conversion rate of the high polymer X2 is calculated to be 77%, and the thermal decomposition temperature Td of the high polymer X2 in air is measured by thermogravimetric analysis TGA ≥ 300 °C, This shows that the thermal stability of the high polymer X2 is high.

Embodiment 3

[0051] Such as image 3 As shown, the synthesis of high polymer X3

[0052] The high polymer X3 is synthesized according to the free radical polymerization route, and the free radicals are provided by the thermal decomposition of perfluorobenzoyl peroxide PFDBPO.

[0053] The difference between this example and Example 1 is: the molar mass of M8A monomer and M8E monomer, in this example, 190.4 grams (0.7 mol) of M8A monomer, 106.8 grams (0.3 mol) of M8E monomer, and 0.297 g of initiator , high polymer X3 is obtained after the polymerization reaction, the conversion rate of the high polymer X3 is calculated to be 78%, and the thermal decomposition temperature Td of the high polymer X3 in air is measured by thermogravimetric analysis TGA ≥ 300 °C, This shows that the thermal stability of the high polymer X3 is high.

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Abstract

The invention belongs to the technical field of optical fibers, and particularly relates to an h-GI-POF high-temperature optical fiber and a preparation method thereof. The h-GI-POF high-temperature light-guide fiber comprises an inner core layer and an outer skin layer, the inner core layer and the outer skin layer are arranged in a concentric structure, the inner core layer and the outer skin layer are composed of high polymers with different refractive indexes, the high polymers are formed by copolymerization of perfluorodioxolane and perfluoro dioxin bicyclononane, and the refractive indexof the inner core layer is larger than that of the outer skin layer. The inner core layer is integrally formed by five core layers of which the refractive indexes are gradually reduced from the coreto the outside, and the outer skin layer is formed by a single-layer skin layer, so that the transparency reaches 98% or above, the glass transition temperature Tg exceeds 150 DEG C, and the high-temperature optical fiber is suitable for ultra-high-speed communication. Compared with the SI-POF in the prior art, six layers of core materials are used, and each core layer has a gradual change refractive index, so that the incident light transmission delay is shorter than that of the common SI-POF, the signal transmission bandwidth is larger, and the transmission speed is higher.

Description

technical field [0001] The invention belongs to the field of optical fiber technology, and in particular relates to an h-GI-POF high-temperature optical fiber and a preparation method thereof. Background technique [0002] Optical fiber generally refers to a transparent fiber with a diameter of several microns to hundreds of microns that can transmit light waves and various optical signals. [0003] Traditional optical fiber is usually used in optical communication to transmit signals over long distances. Its signal transmission speed is much faster than that of metal cables and wires, so optical fiber can replace metal cables. Another factor that determines fiber optics to replace metal cables is that fiber optics have very little loss to the transmitted signal; fiber optics are not affected by electromagnetic interference that plagues metal wires so badly. In terms of structure, a typical optical fiber is a transparent core with a slightly higher optical index (core) and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/036D01F8/00D01F8/16
CPCG02B6/036G02B6/03661D01F8/00D01F8/16
Inventor 翁德喜方民锋冈本吉行杜启明小池康太郎弗兰克-米喀什提蛮西-默克尔何振杰张浩小池康博
Owner 中闽光纤科技有限公司
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