CN108129036B - Process for manufacturing optical fiber - Google Patents
Process for manufacturing optical fiber Download PDFInfo
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- CN108129036B CN108129036B CN201711392992.7A CN201711392992A CN108129036B CN 108129036 B CN108129036 B CN 108129036B CN 201711392992 A CN201711392992 A CN 201711392992A CN 108129036 B CN108129036 B CN 108129036B
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- optical fiber
- deuterium
- treatment tank
- tank
- hole
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/66—Chemical treatment, e.g. leaching, acid or alkali treatment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses a manufacturing process of an optical fiber, which comprises the following steps: 1) placing a plurality of optical fiber disks into a deuterium processing tank, and enabling the optical fiber in one optical fiber disk to penetrate out of the deuterium processing tank; 2) connecting the detection optical fiber with the optical fiber in the step 1); 3) vacuumizing; 4) filling nitrogen; 5) vacuumizing again; 6) filling the deuterium-nitrogen mixed gas, and keeping the temperature in the treatment tank to be 28-32 ℃ and the pressure to be 0.02-0.03 MPa; 7) after 36-48 hours, detecting the optical fiber by using detection equipment every 30-60 minutes, and when the detected optical fiber is qualified, extracting the gas in the deuterium processing tank to finish deuterium processing; and when the detected optical fiber is unqualified, the deuterium treatment is continued. This manufacturing process is worn out through the optic fibre with deuterium in the jar to can the on-line monitoring, process that the process that detects after handling for prior art deuterium, can improve deuterium processing's success rate, improve production efficiency, practice thrift the cost.
Description
The application is a divisional application with the application date of 2016, 03 and 31, the application number of 201610195958.X, and the name of the invention is "manufacturing process of optical fiber".
Technical Field
The invention relates to the field of optical fibers, in particular to a manufacturing process of an optical fiber.
Background
And carrying out processes of wire drawing, cooling, coating and curing on the prefabricated rod to obtain the optical fiber. When manufacturing an optical fiber, the optical fiber may contain OH groups due to a heat source or impurities in raw materials used to manufacture the optical fiber. In high-energy radiation, the content of OH groups may increase. The loss characteristics of the fiber due to OH groups make it difficult to operate the fiber in the E-band (1360nm-1460nm) range. Even when the optical fiber has a small amount of OH groups, this phenomenon is worse if the optical fiber is exposed to hydrogen. The increase in fiber loss due to hydrogen as a function of time is known as "hydrogen aging loss", which can cause serious problems when the fiber is used for a longer period of time.
In order to solve the above problems, a technique of replacing OH groups contained in an optical fiber with OD groups has been proposed. This involves exposing the fiber to deuterium gas. Since such a substitution reaction is an irreversible reaction, OH groups are not formed in the optical fiber treated with deuterium even if the optical fiber is exposed to hydrogen gas later.
In the existing manufacturing process, deuterium treatment is divided into two parts, namely, an optical fiber is placed in a deuterium treatment tank and then deuterium treatment is carried out; and secondly, detecting the processed optical fiber and testing whether the deuterium processing is qualified. The existing manufacturing process can not detect the optical fiber on line and can be carried out only after deuterium treatment is finished, so that the deuterium treatment effect is difficult to ensure, and the optical fiber can have the problem of more or less deuterium charge.
Disclosure of Invention
The invention provides a manufacturing process of an optical fiber aiming at the problems. The problems that the deuterium treatment effect is difficult to ensure in the prior art and the optical fiber is likely to have more or less deuterium filling are solved.
The technical scheme adopted by the invention is as follows:
a process for manufacturing an optical fiber comprising the steps of:
1) opening the deuterium treatment tank, placing a plurality of optical fiber discs into the deuterium treatment tank, selecting at least one optical fiber disc, penetrating one end of an optical fiber in the optical fiber disc out of the side wall of the deuterium treatment tank, and sealing the penetrated part;
2) butting one end of a detection optical fiber with the optical fiber penetrating out of the deuterium treatment tank in the step 1) through an optical fiber connector, and connecting the other end of the detection optical fiber with detection equipment;
3) closing the deuterium treatment tank and vacuumizing the deuterium treatment tank;
4) filling nitrogen into the deuterium treatment tank;
5) vacuumizing again;
6) filling the mixed gas of deuterium and nitrogen into a deuterium treatment tank, and keeping the temperature in the treatment tank at 28-32 ℃ and the pressure at 0.02-0.03 MPa;
7) after 36-48 hours, detecting the optical fiber penetrating out of the deuterium processing tank by using detection equipment every 30-60 minutes, and when the detected optical fiber is qualified, extracting the gas in the deuterium processing tank to finish deuterium processing; and when the detected optical fiber is unqualified, the deuterium treatment is continued.
This manufacturing process is worn out through the optic fibre with deuterium in the jar to can the on-line monitoring, process that the process that detects after handling for prior art deuterium, can improve deuterium processing's success rate, improve production efficiency, practice thrift the cost.
Optionally, step 1) and step 2) are operated by a deuterium processing system comprising:
a deuterium treating tank having a through hole in a side wall thereof through which an optical fiber passes;
a sealing mechanism for preventing gas from flowing into or out of the deuterium treating tank through the through-hole;
the optical fiber connector is used for connecting the detection optical fiber and the optical fiber penetrating out of the through hole;
and the detection equipment is connected with the detection optical fiber and is used for detecting the optical fiber penetrating out of the through hole.
Optionally, the sealing mechanism comprises:
the first cylindrical part is arranged on the inner side wall of the deuterium processing tank and is arranged coaxially with the through hole;
the first sealing sleeve is provided with a cylindrical sealing part sleeved on the through hole in an inner sleeve mode and a conical guide part, and the guide part abuts against the inner side wall of the first cylindrical part.
First section of thick bamboo portion plays the effect of injecing first seal cover, can guarantee the reliable work of first seal cover.
Optionally, the sealing mechanism further comprises:
the second cylindrical part is arranged on the outer side wall of the deuterium processing tank and is arranged coaxially with the through hole;
the large-diameter end of the second sealing sleeve abuts against the end part of the second cylindrical part, and the small-diameter end of the second sealing sleeve is matched with the optical fiber;
and the sealing cover is in threaded fit with the outer side wall of the second cylindrical part and is provided with a through hole for the optical fiber to pass through, and the end surface of the sealing cover is abutted against the small-diameter end of the second sealing sleeve.
The large-diameter end of the second sealing sleeve can be abutted against the end face of the second cylindrical part through the sealing cover, so that the small-diameter end of the second sealing cover can perform secondary sealing on the optical fiber.
Optionally, the outer side wall of the second cylindrical portion has a limiting ring, and the end face of the sealing cover abuts against the limiting ring.
The position of sealed lid can effectively be guaranteed to this kind of structure, prevents excessive rotation, oppresses the second seal cover.
Optionally, the outer sidewall of the deuterium treatment canister has an auxiliary plate adjacent to and below the through hole, the auxiliary plate being used for carrying the optical fiber connector.
Optionally, the optical fiber tray in step 1) includes a carrying tray and an optical fiber wound on the carrying tray, and the carrying tray includes:
a hollow cylinder; the side wall of the cylinder body is provided with a plurality of vent holes;
and the two limiting discs are respectively fixed on two end faces of the barrel body, and a plurality of vent holes are formed in each limiting disc.
The structure of the bearing plate can increase the ventilation area, and ensure that optical fibers at each position of the bearing plate can be reliably deuterium-treated.
The invention has the beneficial effects that: this manufacturing process is worn out through the optic fibre with deuterium in the jar to can the on-line monitoring, process that the process that detects after handling for prior art deuterium, can improve deuterium processing's success rate, improve production efficiency, practice thrift the cost.
Description of the drawings:
FIG. 1 is a flow chart of a process for manufacturing an optical fiber of the present invention;
FIG. 2 is a schematic diagram of a deuterium processing system;
FIG. 3 is a schematic view of a sealing mechanism;
fig. 4 is a schematic structural diagram of a carrier tray.
The figures are numbered:
1. the device comprises a detection device, 2, an auxiliary plate, 3, an optical fiber connector, 4, an optical fiber, 5, a sealing mechanism, 6, an optical fiber disk, 7, a deuterium processing tank, 8, a through hole, 9, a sealing cover, 10, a second sealing sleeve, 11, a limiting ring, 12, a second cylindrical part, 13, a through hole, 14, a first cylindrical part, 15, a guide part, 16, a sealing part, 17, a cylindrical body, 18, a limiting disk, 19, a vent hole, 20 and a detection optical fiber.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment discloses a process for manufacturing an optical fiber, comprising the steps of:
1) opening the deuterium treatment tank, placing a plurality of optical fiber discs into the deuterium treatment tank, selecting at least one optical fiber disc, penetrating one end of an optical fiber in the optical fiber disc out of the side wall of the deuterium treatment tank, and sealing the penetrated part;
2) butting one end of a detection optical fiber with the optical fiber penetrating out of the deuterium treatment tank in the step 1) through an optical fiber connector, and connecting the other end of the detection optical fiber with detection equipment;
3) closing the deuterium treatment tank and vacuumizing the deuterium treatment tank;
4) filling nitrogen into the deuterium treatment tank;
5) vacuumizing again;
6) filling the mixed gas of deuterium and nitrogen into a deuterium treatment tank, and keeping the temperature in the treatment tank at 28-32 ℃ and the pressure at 0.02-0.03 MPa;
7) after 36-48 hours, detecting the optical fiber penetrating out of the deuterium processing tank by using detection equipment every 30-60 minutes, and when the detected optical fiber is qualified, extracting the gas in the deuterium processing tank to finish deuterium processing; and when the detected optical fiber is unqualified, the deuterium treatment is continued.
This manufacturing process is worn out through the optic fibre with deuterium in the jar to can the on-line monitoring, process that the process that detects after handling for prior art deuterium, can improve deuterium processing's success rate, improve production efficiency, practice thrift the cost.
As shown in fig. 2 and 3, in the present embodiment, step 1) and step 2) are operated by a deuterium processing system including:
a deuterium processing tank 7 having a through hole 13 in a side wall thereof through which an optical fiber passes, the deuterium processing tank 7 being used to mount the optical fiber tray 6;
a sealing mechanism 5 for preventing gas from flowing into or out of the deuterium treatment tank 7 through the through-hole 13;
the optical fiber connector 3 is used for connecting the detection optical fiber 20 and the optical fiber 4 which penetrates out of the through hole 13;
and the detection device 1 is connected with the detection optical fiber 20 and is used for detecting the optical fiber 4 which penetrates out of the through hole 13.
As shown in fig. 3, in the present embodiment, the sealing mechanism 5 includes:
a first cylindrical portion 14 provided on the inner side wall of the deuterium treatment tank 7 and coaxially provided with the through hole 13;
the first seal sleeve has a cylindrical seal portion 16 fitted in the through hole 13 and a conical guide portion 15, and the guide portion 15 abuts against the inner side wall of the first cylindrical portion 14.
The first tube-shape portion of this implementation plays the effect of injecing first seal cover, can guarantee the reliable work of first seal cover.
The sealing mechanism 5 further includes:
a second cylindrical portion 12 provided on the outer side wall of the deuterium treating tank 7 and coaxially provided with the through hole 13;
a conical second sealing sleeve 10, the large diameter end of which abuts against the end of the second cylindrical part 12, and the small diameter end of the second sealing sleeve 10 is matched with the optical fiber 4;
and the sealing cover 9 is in threaded fit with the outer side wall of the second cylindrical part 12, the sealing cover is provided with a through hole 8 for the optical fiber to pass through, and the end face of the sealing cover abuts against the small-diameter end of the second sealing sleeve.
The large-diameter end of the second sealing sleeve can be abutted against the end face of the second cylindrical part through the sealing cover, so that the small-diameter end of the second sealing cover can perform secondary sealing on the optical fiber.
In this embodiment, the outer sidewall of the second cylindrical portion 12 has a stop ring 11, and the end surface of the sealing cover abuts against the stop ring. The position of sealed lid can effectively be guaranteed to this kind of structure, prevents excessive rotation, oppresses the second seal cover.
As shown in FIG. 2, in the present embodiment, the outer sidewall of the deuterium processing tank 7 has an auxiliary plate 2 adjacent to and below the through hole 13 for carrying the optical fiber connector 3.
As shown in fig. 4, in this embodiment, the optical fiber tray in step 1) includes a carrier tray and optical fibers wound on the carrier tray, and the carrier tray includes:
a hollow cylinder 17; the side wall of the cylinder body is provided with a plurality of vent holes 19;
two limiting discs 18 are respectively fixed on two end faces of the cylinder body, and a plurality of vent holes 19 are arranged on each limiting disc.
The structure of the bearing plate can increase the ventilation area, and ensure that optical fibers at each position of the bearing plate can be reliably deuterium-treated.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.
Claims (1)
1. A process for manufacturing an optical fiber, comprising the steps of:
1) opening the deuterium treatment tank, placing a plurality of optical fiber discs into the deuterium treatment tank, selecting at least one optical fiber disc, penetrating one end of an optical fiber in the optical fiber disc out of the side wall of the deuterium treatment tank, and sealing the penetrated part;
2) butting one end of a detection optical fiber with the optical fiber penetrating out of the deuterium treatment tank in the step 1) through an optical fiber connector, and connecting the other end of the detection optical fiber with detection equipment;
3) closing the deuterium treatment tank and vacuumizing the deuterium treatment tank;
4) filling nitrogen into the deuterium treatment tank;
5) vacuumizing again;
6) filling the mixed gas of deuterium and nitrogen into a deuterium treatment tank, and keeping the temperature in the treatment tank at 28-32 ℃ and the pressure at 0.02-0.03 MPa;
7) after 36-48 hours, detecting the optical fiber penetrating out of the deuterium processing tank by using detection equipment every 30-60 minutes, and when the detected optical fiber is qualified, extracting the gas in the deuterium processing tank to finish deuterium processing; when the detected optical fiber is unqualified, deuterium treatment is continuously carried out;
step 1) and step 2) are operated by a deuterium processing system comprising:
a deuterium treating tank having a through hole in a side wall thereof through which an optical fiber passes;
a sealing mechanism for preventing gas from flowing into or out of the deuterium treating tank through the through-hole;
the optical fiber connector is used for connecting the detection optical fiber and the optical fiber penetrating out of the through hole;
the detection equipment is connected with the detection optical fiber and is used for detecting the optical fiber penetrating out of the through hole;
the sealing mechanism includes:
the first cylindrical part is arranged on the inner side wall of the deuterium processing tank and is arranged coaxially with the through hole;
the first sealing sleeve is provided with a cylindrical sealing part sleeved on the through hole in an inner sleeving manner and a conical guide part, and the guide part is abutted against the inner side wall of the first cylindrical part;
the outer side wall of the deuterium processing tank is provided with an auxiliary plate, the auxiliary plate is adjacent to and below the through hole, and the auxiliary plate is used for bearing the optical fiber connector;
the optical fiber tray in step 1) comprises a bearing tray and optical fibers wound on the bearing tray, wherein the bearing tray comprises:
a hollow cylinder; the side wall of the cylinder body is provided with a plurality of vent holes;
and the two limiting discs are respectively fixed on two end faces of the barrel body, and a plurality of vent holes are formed in each limiting disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392992.7A CN108129036B (en) | 2016-03-31 | 2016-03-31 | Process for manufacturing optical fiber |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392992.7A CN108129036B (en) | 2016-03-31 | 2016-03-31 | Process for manufacturing optical fiber |
| CN201610195958.XA CN105776897B (en) | 2016-03-31 | 2016-03-31 | The manufacturing process of optical fiber |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610195958.XA Division CN105776897B (en) | 2016-03-31 | 2016-03-31 | The manufacturing process of optical fiber |
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| Publication Number | Publication Date |
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| CN108129036A CN108129036A (en) | 2018-06-08 |
| CN108129036B true CN108129036B (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711392992.7A Active CN108129036B (en) | 2016-03-31 | 2016-03-31 | Process for manufacturing optical fiber |
| CN201610195958.XA Active CN105776897B (en) | 2016-03-31 | 2016-03-31 | The manufacturing process of optical fiber |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610195958.XA Active CN105776897B (en) | 2016-03-31 | 2016-03-31 | The manufacturing process of optical fiber |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110885186A (en) * | 2018-09-11 | 2020-03-17 | 西安盛佳光电有限公司 | Hydrogen carrying device for double-clad optical fiber of high-power optical fiber laser |
| CN113754320B (en) * | 2021-09-02 | 2022-12-27 | 富通集团（嘉善）通信技术有限公司 | Equipment for deuterium treatment of optical fiber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464029A (en) * | 1990-07-03 | 1992-02-28 | Fujikura Ltd | Inspecting method for hermetic coat optical fiber |
| CN1562844A (en) * | 2004-03-18 | 2005-01-12 | 烽火通信科技股份有限公司 | Treatment method of reducing hydrogen loss of optical fiber and devices in use for the method |
| CN1875301A (en) * | 2003-10-28 | 2006-12-06 | 信越化学工业株式会社 | Optical fiber treating device, treating method and optical fiber |
| CN101037303A (en) * | 2007-03-01 | 2007-09-19 | 成都中住光纤有限公司 | Optical fibre winding disk for low water peak treatment |
-
2016
- 2016-03-31 CN CN201711392992.7A patent/CN108129036B/en active Active
- 2016-03-31 CN CN201610195958.XA patent/CN105776897B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0464029A (en) * | 1990-07-03 | 1992-02-28 | Fujikura Ltd | Inspecting method for hermetic coat optical fiber |
| CN1875301A (en) * | 2003-10-28 | 2006-12-06 | 信越化学工业株式会社 | Optical fiber treating device, treating method and optical fiber |
| CN1562844A (en) * | 2004-03-18 | 2005-01-12 | 烽火通信科技股份有限公司 | Treatment method of reducing hydrogen loss of optical fiber and devices in use for the method |
| CN101037303A (en) * | 2007-03-01 | 2007-09-19 | 成都中住光纤有限公司 | Optical fibre winding disk for low water peak treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108129036A (en) | 2018-06-08 |
| CN105776897B (en) | 2018-03-09 |
| CN105776897A (en) | 2016-07-20 |
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Effective date of registration: 20221026 Address after: 311400 No. 18, Guanyi Road, Fuchun street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Futong Group Co.,Ltd. Address before: 311400 Yinhu Development Zone, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU FUTONG COMMUNICATION TECHNOLOGY Co.,Ltd. |