CN103553367A - Method for post-treatment preparation of smooth corroded optical fiber surface - Google Patents
Method for post-treatment preparation of smooth corroded optical fiber surface Download PDFInfo
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- CN103553367A CN103553367A CN201310466021.8A CN201310466021A CN103553367A CN 103553367 A CN103553367 A CN 103553367A CN 201310466021 A CN201310466021 A CN 201310466021A CN 103553367 A CN103553367 A CN 103553367A
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- optical fiber
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- fiber surface
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Abstract
The invention relates to a method for post-treatment preparation of a smooth corroded optical fiber surface, and the method comprises salt solution treatment and ultrasonic treatment of a corroded rough optical fiber surface. The method is applicable to various types of optical fibers. In order to prepare the smooth corroded fiber surface, the invention provides a simple and effective post-treatment method. The method is completed as follows: putting a rough optical fiber prepared by HF solution corrosion into a salt solution for ultrasonic treatment, and the smooth corroded optical fiber surface can be obtained by the post-treatment method. The method has the following advantages: 1, bubbles and sols on the optical fiber surface can be transformed into precipitations by a simple chemical reaction, and the treatment dose no harm to the optical fiber itself and is simple in operation; and 2, according to the method, ultrasonic wave effects are added, under the ultrasonic wave effects, the precipitations produced by the chemical reaction can be well fallen into the solution, and the preparation time is effectively shortened.
Description
Technical field:
The present invention relates to fiber optical corrosive technical field, relate to the uneven surface optical fiber that has that corrosion is obtained and carry out aftertreatment, reach the object that obtains smooth optical fiber surface, be specifically related to the method that aftertreatment obtains smooth corrosion optical fiber surface.
Technical background:
At present generally take chemical corrosion method to control the diameter of optical fiber, to carry out deep processing.But the chemical optical fibre etch of bibliographical information has following shortcoming: circulation ratio is bad, and etching time is long, not easy to operate, the optical fiber surface after corrosion still has necessarily coarse.Reflectivity after fiber optical corrosive is subject to the impact of surfaceness, and smooth corrosion surface has good boundary reflection.Therefore the smooth corrosion optical fiber surface of research acquisition has important theory and realistic meaning.As far as we know, at present also not about utilizing simple post-treating method can realize the report that obtains smooth corrosion optical fiber surface.
Summary of the invention:
Defect and problem that object of the present invention exists in order to overcome prior art, provide a kind of aftertreatment to prepare the method for smooth corrosion optical fiber surface, method of the present invention is placed in salts solution supersound process and completes by HF solution corrosion being obtained to coarse optical fiber, and this kind of post-treating method can obtain smooth corrosion optical fiber surface.
Mainly there is following chemical reaction (1-4) in fiber optical corrosive, optical fiber surface produces bubble SiF
4with colloidal sol H
2siF
6, corrosion product is gathered in optical fiber surface, has formed coarse surface, the bubble SiF producing in order to remove surface
4with colloidal sol H
2siF
6, by bubble SiF
4with colloidal sol H
2siF
6by chemical reaction, be converted into precipitation H
4siO
4and Na
2siF
6, then by ultrasonic, precipitation is removed from optical fiber surface vibrations, to synthesize smooth optical fiber surface, relative theory is as shown in reaction (5) and (6).The object of the invention is the rough electrochemical corrosion optical fiber surface that corrosion obtains for ordinary method, provide a kind of effective aftertreatment to prepare the method for smooth corrosion optical fiber surface, and can shorten the time of aftertreatment.
SiO
2+2H
2O→Si(OH)
4 (1)
Si(OH)
4+4HF→SiF
4↑+4H
2O (2)
3SiF
4+ 2H
2o → 2H
2siF
6↓ (gel)+SiO
2(3)
SiF
4+ 2HF → H
2siF
6↓ (gel) (4)
SiF
4+ Na
2cO
3+ H
2o → H
4siO
4↓ (precipitation)+Na
2siF
6↓ (precipitation)+CO
2↑ (5)
H
2siF
6+ Na
2cO
3→ Na
2siF
6↓ (precipitation)+CO
2↑+H
2o (6)
The present invention solves the problems of the technologies described above adopted technical scheme:
A method for smooth corrosion optical fiber surface is prepared in aftertreatment, it is characterized in that including following steps:
1) take ordinary optic fibre as starting material, the sulphuric acid soln that is 98.0% by mass concentration erodes the coat of optical fiber surface, obtains nuditing fiber;
2) by step 1) to be placed in volumetric molar concentration be 1.0mol L for the nuditing fiber prepared
-1na
2cO
3in solution, supersound process 30s, removes the H that optical fiber surface is mixed with
2sO
4after solution, take out, then will be through Na
2cO
3optical fiber after solution is washed is placed in deionized water for ultrasonic and processes 30s, removes the Na that optical fiber surface may be mixed with
2cO
3;
3) by step 2) nuditing fiber after the processing HF solution that is placed in mass concentration 5.0-60.0% corrodes, etching time 0.8-11.0h.Control fibre diameter, obtain having the optical fiber on rough electrochemical corrosion surface;
4) step 3) to be placed in 50.0mL volumetric molar concentration be 0.01-2.00mol L for the optical fiber with rough electrochemical corrosion surface prepared
-1na
2cO
3in solution, stir after 1-20min supersound process 2-40min at temperature 20-90 ℃;
5) by through step 4) optical fiber after processing with smooth corrosion surface is placed in deionized water for ultrasonic 30s, the Na being mixed with to remove optical fiber surface
2cO
3solution, and by the optical fiber air seasoning of taking out, obtain having the optical fiber of smooth corrosion surface.
Described optical fiber is a kind of of single-mode fiber, multimode optical fibers.
The HF concentration of polymer solution of corrosion optical fiber is 5.0-40.0%.
Na
2cO
3the volumetric molar concentration of solution is 0.05-1.50mol L
-1.
Optical fiber after HF solution corrosion and Na
2cO
3the mixed churning time of solution is 2-15min.
Corrosion optical fiber and Na
2cO
3after solution mixes, ultrasonic temperature is 30-60 ℃.
Corrosion optical fiber and Na
2cO
3after solution mixes, ultrasonic time is 5-35min.
There is at present report by regulating the proportioning of fiber optical corrosive solution to synthesize smooth corrosion optical fiber surface, also there is report to synthesize smooth corrosion optical fiber surface by controlling reaction conditions, but also, not about utilizing simple post-treating method can realize the report that obtains smooth corrosion optical fiber surface, the present invention can provide a method for preparing smooth corrosion optical fiber surface.The present invention has the following advantages: 1. the bubble of optical fiber surface, colloidal sol are converted into precipitation by simple chemical reaction, this is processed optical fiber itself without any injury, simple to operate.2. the present invention has increased hyperacoustic effect, and under ultrasonic effect, the precipitation that after chemical reaction generates can well be shed in solution, effectively shortens preparation time.
Accompanying drawing explanation:
Fig. 1 is become image after HF solution-treated under opticmicroscope by the different fiber in the present invention: (a) be original fiber figure; (b, c, d) is respectively the surface topography map of optical fiber after different condition chemical corrosion; (e) be respectively and (f) optical fiber through different condition chemical corrosion post-etching-the do not corrode shape appearance figure of contact surface;
Fig. 2 be in embodiment 1 optical fiber finally by Na
2cO
3after the ultrasonic aftertreatment of solution, under opticmicroscope, become image: the optical fiber surface after corrosion (a) and corrode-do not corrode contact surface (b).
Embodiment:
Below in conjunction with drawings and Examples, the present invention will be further described in detail, but this explanation can not be construed as limiting the invention.
The concrete steps that aftertreatment obtains smooth corrosion optical fiber surface are as follows:
1) device that the present invention prepares smooth corrosion optical fiber surface comprises a container of placing deionized water, a container of placing concentrated sulfuric acid solution, and a container of placing HF solution, places Na for one
2cO
3the container of solution, a Ultrasonic Cleaners.
2) the resin surrounding layer of pending optical fiber is carried out to corrosion treatment, detailed process is as follows: the optical fiber using in the present embodiment is single-mode fiber, fibre diameter is 400 μ m, intercepted length is five sections of 10cm single-mode fibers, put into the container (vitriol oil liquid level height 4cm) of the concentrated sulfuric acid solution that mass concentration 98.0% is housed, static corrosion 30min left and right, takes out the optical fiber of removing after resin surrounding layer.
3) by Na
2cO
3be dissolved in and in deionized water, form homogeneous solution, wherein Na
2cO
3volumetric molar concentration be 0.01-2.0mol L
-1.
4) five sections of optical fiber removing resin surrounding layer are immersed in to volumetric molar concentration is housed is 1.0mol L
-1na
2cO
3(Na in the container of solution
2cO
3liquid level of solution height 6cm), supersound process 30s, takes out after thoroughly washing the concentrated sulfuric acid solution on optical fiber surface.Again by Na
2cO
3optical fiber after solution is washed is placed in deionized water for ultrasonic and processes 30s, removes the Na that optical fiber surface may be mixed with
2cO
3.
5) by step 4) to be placed in respectively mass concentration be that 5.0%, 10.0%, 20.0%, 40.0%, 60.0% HF solution corrodes for five sections of nuditing fibers after processing, the corresponding time is respectively 11.0,5.0,2.3,1.2,0.8h, by regulating the concentration of HF solution and the time of optical fiber immersion HF solution effectively to control fibre diameter, after corrosion, obtain having the optical fiber on rough electrochemical corrosion surface, correspond to respectively Fig. 1 b, Fig. 1 c, Fig. 1 d, Fig. 1 e, Fig. 1 f.
6) step 5) five sections of optical fiber with rough electrochemical corrosion surface preparing are placed in respectively 0.01mol L
-1, 0.05mol L
-1, 1.0mol L
-1, 1.5mol L
-1, 2.00mol L
-1na
2cO
3in solution, corresponding churning time is respectively after 1min, 2min, 5min, 15min, 20min, corresponding corresponding 2min, 5min, 20min, 35min, the 40min of supersound process at 20 ℃, 30 ℃, 40 ℃, 60 ℃, 90 ℃ respectively again, obtains having the optical fiber of smooth corrosion surface.
7) after being placed in to the ultrasonic 30s of deionized water solution, takes out the optical fiber with smooth corrosion optical fiber surface the Na that may be mixed with to remove optical fiber surface
2cO
3solution, and by the optical fiber air seasoning of taking out, be 5min time of drying, obtains having the optical fiber of smooth corrosion optical fiber surface.
In above-described embodiment, pending optical fiber can also be multimode optical fibers.
Compare former optical fiber as shown in Figure 1a, optical fiber after HF chemical corrosion pattern as shown in Fig. 1 b, Fig. 1 c, Fig. 1 d, Fig. 1 e, Fig. 1 f, optical fiber surface is coarse as shown in Fig. 1 b, Fig. 1 c, Fig. 1 d, fiber optical corrosive-do not corrode shown in the coarse Fig. 1 e of contact interface, Fig. 1 f, in corrosion process, optical fiber surface produces bubble SiF
4with colloidal sol H
2siF
6, corrosion product is gathered in optical fiber surface, has formed coarse surface.Optical fiber after corrosion is placed in to 1.0mol L
-1na
2cO
3in solution, stir 5min, at 40 ℃, after supersound process 20min, the optical fiber after processing is done to micro image analysis, corresponding result is as shown in Fig. 2 a, 2b, and the optical fiber after corrosion is through Na
2cO
3after solution supersound process 20min, surface is very as shown in Figure 2 a smooth, is consistent as shown in Figure 1a with original fiber, corrode-does not corrode contact surface and also becomes very smooth as Fig. 2 b institute, meets requirement of experiment completely.According to reaction (5) and (6), the bubble SiF that reaction generates
4with colloidal sol H
2siF
6by chemical reaction, be converted into precipitation H
4siO
4and Na
2siF
6, ultrasonic disturbance contributes to accelerate precipitation and removes from optical fiber surface vibrations.This type of Na
2cO
3the method of the ultrasonic aftertreatment of solution is simple to operate, and the fiber products quality of acquisition is high, is applicable to producing adopting.
The various embodiments described above are only applicable to illustrate the present invention, and wherein the step of implementation method all can change to some extent, and every equivalents of carrying out on technical solution of the present invention basis and improvement, all should not get rid of outside protection scope of the present invention.
Claims (7)
1. a method for smooth corrosion optical fiber surface is prepared in aftertreatment, it is characterized in that including following steps:
1) take ordinary optic fibre as starting material, the sulphuric acid soln that is 98.0% by mass concentration erodes the coat of optical fiber surface, obtains nuditing fiber;
2) by step 1) to be placed in volumetric molar concentration be 1.0mol L for the nuditing fiber prepared
-1na
2cO
3in solution, supersound process 30s, removes the H that optical fiber surface is mixed with
2sO
4after solution, take out, then will be through Na
2cO
3optical fiber after solution is washed is placed in deionized water for ultrasonic and processes 30s, removes the Na that optical fiber surface may be mixed with
2cO
3;
3) by step 2) nuditing fiber after the processing HF solution that is placed in mass concentration 5.0-60.0% corrodes, and etching time 0.8-11.0h, obtains having the optical fiber on rough electrochemical corrosion surface;
4) step 3) to be placed in 50.0mL volumetric molar concentration be 0.01-2.00mol L for the optical fiber with rough electrochemical corrosion surface prepared
-1na
2cO
3in solution, stir after 1-20min supersound process 2-40min at temperature 20-90 ℃;
5) by through step 4) optical fiber after processing with smooth corrosion surface is placed in deionized water for ultrasonic 30s, the Na being mixed with to remove optical fiber surface
2cO
3solution, and by the optical fiber air seasoning of taking out, obtain having the optical fiber of smooth corrosion surface.
2. the method for smooth corrosion optical fiber surface is prepared in aftertreatment according to claim 1, it is characterized in that: described optical fiber is a kind of of single-mode fiber, multimode optical fibers.
3. aftertreatment according to claim 1 obtains the method for smooth corrosion optical fiber surface, it is characterized in that: the HF concentration of polymer solution of corrosion optical fiber is 5.0-40.0%.
4. aftertreatment according to claim 1 obtains the method for smooth corrosion optical fiber surface, it is characterized in that: Na
2cO
3the volumetric molar concentration of solution is 0.05-1.50mol L
-1.
5. aftertreatment according to claim 1 obtains the method for smooth corrosion optical fiber surface, it is characterized in that: the optical fiber after HF solution corrosion and Na
2cO
3the mixed churning time of solution is 2-15min.
6. aftertreatment according to claim 1 obtains the method for smooth corrosion optical fiber surface, it is characterized in that: corrosion optical fiber and Na
2cO
3after solution mixes, ultrasonic temperature is 30-60 ℃.
7. aftertreatment according to claim 1 obtains the method for smooth corrosion optical fiber surface, it is characterized in that: corrosion optical fiber and Na
2cO
3after solution mixes, ultrasonic time is 5-35min.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106949916A (en) * | 2016-11-02 | 2017-07-14 | 北京信息科技大学 | A kind of temperature and strain testing method of the corrosion of use fiber end face |
CN110380033A (en) * | 2019-07-22 | 2019-10-25 | 珠海格力电器股份有限公司 | A kind of core-shell material and preparation method thereof |
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JPS6217035A (en) * | 1985-07-15 | 1987-01-26 | Furukawa Electric Co Ltd:The | Production of base material for optical fiber |
CN101286372A (en) * | 2008-04-18 | 2008-10-15 | 华南理工大学 | Method for eliminating optical fibre detecting probe surface honeycomb rough appearance during static corrosion |
CN101942700A (en) * | 2010-10-20 | 2011-01-12 | 南京师范大学 | Method for preparing circular cylindrical colloidal crystals based on optical fibers and crystals thereof |
CN102162874A (en) * | 2011-05-23 | 2011-08-24 | 吉林大学 | Method for preparing micropore array fiber bragg grating |
CN102565925A (en) * | 2012-01-17 | 2012-07-11 | 清华大学 | Method for preparing microfine optical fiber by adopting chemical corrosion method |
-
2013
- 2013-10-08 CN CN201310466021.8A patent/CN103553367A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6217035A (en) * | 1985-07-15 | 1987-01-26 | Furukawa Electric Co Ltd:The | Production of base material for optical fiber |
CN101286372A (en) * | 2008-04-18 | 2008-10-15 | 华南理工大学 | Method for eliminating optical fibre detecting probe surface honeycomb rough appearance during static corrosion |
CN101942700A (en) * | 2010-10-20 | 2011-01-12 | 南京师范大学 | Method for preparing circular cylindrical colloidal crystals based on optical fibers and crystals thereof |
CN102162874A (en) * | 2011-05-23 | 2011-08-24 | 吉林大学 | Method for preparing micropore array fiber bragg grating |
CN102565925A (en) * | 2012-01-17 | 2012-07-11 | 清华大学 | Method for preparing microfine optical fiber by adopting chemical corrosion method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106949916A (en) * | 2016-11-02 | 2017-07-14 | 北京信息科技大学 | A kind of temperature and strain testing method of the corrosion of use fiber end face |
CN110380033A (en) * | 2019-07-22 | 2019-10-25 | 珠海格力电器股份有限公司 | A kind of core-shell material and preparation method thereof |
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Application publication date: 20140205 |