A kind of optical cable preparation method

A technology of optical cable and optical fiber, which is applied in the field of optoelectronic communication, can solve the problems of optical cable sheath shrinkage, damage, optical fiber bending, etc., and achieve the effects of avoiding optical fiber rupture, improving signal transmission effect, and ensuring high temperature resistance

Active Publication Date: 2019-05-17
SUZHOU AGIX OPTICAL TECH COMPANY
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Problems solved by technology

[0004] In the prior art, any processing of the outer sheath of the optical cable is directly sold. If the user encounters a high temperature environment during subsequent use, the outer sheath of the optical cable will shrink, and because the optical fiber in the inner core of the optical cable is not absolutely located in the center of the outer sheath of the optical cable, it will During the process, the optical fiber will have a certain degree of distance from the center in the outer sheath of the optical cable, and the shrinking process of the outer sheath of the optical cable will cause the inner optical fiber to bend or even be damaged, which will affect the transmission effect of the optical signal

Method used

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  • A kind of optical cable preparation method
  • A kind of optical cable preparation method

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preparation example Construction

[0036] ginseng figure 1 As shown, the invention discloses a method for preparing an optical cable, comprising the following steps:

[0037] S1, intercepting a certain length of optical cable;

[0038] S2, performing heat treatment on the optical cable at a preset temperature, so that the outer sheath of the optical cable is pre-shrunk relative to the optical fiber;

[0039] S3, performing cooling treatment on the heat-treated optical cable;

[0040] S4. Fixedly connect the inner core of the optical cable at both ends of the optical cable to the ferrule.

[0041] ginseng figure 2 As shown, the optical cable 10 of the present invention includes an optical cable inner core 11 and an optical cable sheath 12 , the optical cable inner core 11 includes at least one optical fiber 111 for information transmission and multiple strands of aramid fibers 112 evenly distributed around the optical fiber 111 . Through the multi-strand aramid fiber evenly distributed around the optical fi...

no. 1 approach

[0051] In a first embodiment of the present invention, a method for preparing an optical cable includes the following steps:

[0052] 1.1, intercept a certain length of optical cable, the optical cable includes the inner core of the optical cable and the sheath of the optical cable, the optical cable in this embodiment is OFNP (indoor single-mode optical cable), or OFNR (multi-mode indoor optical cable), or LSZH (low-smoke, halogen-free, flame-retardant fiber optic cable);

[0053] 1.2. Coil the optical cable according to the preset specifications, then place the coiled optical cable in an oven, control the temperature in the oven to 70°C, and heat-treat for 1 hour to pre-shrink the outer sheath of the optical cable relative to the optical fiber;

[0054] 1.3. Remove the heat-treated optical cable from the oven, perform cooling treatment, and cool to room temperature;

[0055] 1.4. Apply adhesive to the inner core of the optical cable and the ferrule at both ends of the optic...

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Abstract

An optical cable preparation method disclosed by the present invention comprises the steps of S1 intercepting an optical cable of a certain length; S2 processing the optical cable thermally under a preset temperature to pre-shrink the scarfskin of the optical cable relative to an optical fiber; S3 cooling the optical cable after the thermal processing; S4 fixedly connecting the inner core at the two ends of the optical cable with a ferrule. According to the present invention, by processing the scarfskin of the optical cable thermally, the scarfskin of the optical cable pre-shrinks relative to the inner core of the optical cable, and subsequently, the scarfskin of the optical cable does not shrink again when passing a high temperature, thereby not damaging the inner core of the optical cable, guaranteeing the high temperature resistant capability of the optical cable, and improving the signal transmission effect of the optical cable.

Description

technical field [0001] The invention belongs to the technical field of photoelectric communication, and in particular relates to a method for preparing an optical cable. Background technique [0002] Optical Fiber Cable (Optical Fiber Cable) is manufactured to meet optical, mechanical or environmental performance specifications. It is a communication cable assembly that uses one or more optical fibers placed in the sheath as the transmission medium and can be used individually or in groups. . The optical cable is mainly composed of an optical fiber (optical fiber) and an optical cable sheath. It uses a certain number of optical fibers to form the inner core of the optical cable in a certain way, and is covered by the optical cable sheath to realize the transmission of optical signals. [0003] The preparation of the optical cable in the prior art is specifically as follows: first, a certain length of optical cable is cut, and then the inner core of the optical cable at both...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44
CPCG02B6/4479G02B6/4486
Inventor 张关明杜文刚刘晓明
Owner SUZHOU AGIX OPTICAL TECH COMPANY
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