CN116040932A - Homogenized solution doping device and spraying method - Google Patents
Homogenized solution doping device and spraying method Download PDFInfo
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- CN116040932A CN116040932A CN202211472870.XA CN202211472870A CN116040932A CN 116040932 A CN116040932 A CN 116040932A CN 202211472870 A CN202211472870 A CN 202211472870A CN 116040932 A CN116040932 A CN 116040932A
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- 238000005507 spraying Methods 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- 239000010453 quartz Substances 0.000 claims abstract description 56
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims abstract description 4
- 150000002500 ions Chemical class 0.000 claims description 38
- 239000010410 layer Substances 0.000 claims description 35
- 238000000151 deposition Methods 0.000 claims description 18
- 230000008021 deposition Effects 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 7
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000012792 core layer Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 238000000265 homogenisation Methods 0.000 claims 1
- 239000007921 spray Substances 0.000 claims 1
- 239000013307 optical fiber Substances 0.000 abstract description 14
- 230000001276 controlling effect Effects 0.000 abstract description 3
- -1 rare earth ions Chemical class 0.000 description 12
- 229910052761 rare earth metal Inorganic materials 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 229910052769 Ytterbium Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000004697 chelate complex Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01853—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention provides a homogenized solution doping method, which comprises a solution storage, a guide pipe, a sprayer, a hard hollow pipe, a quartz reaction pipe, an electric lifting table, a guide rail, a speed sensor, a nitrogen conveying pipe with a pressure regulating valve and a supporting seat, wherein one end of the hollow pipe is connected with a solution storage, the other end of the hollow pipe is connected with a solution spraying device, the solution storage is used for controlling the pressure of a solution, uniformly conveying the solution, the feeding speed is controlled by controlling the conveying nitrogen, an ionic solution flows out through the hard hollow pipe and enters the sprayer to be sprayed out, the speed sensor is received in real time, the position information of the sprayer is obtained through calculation, and the ionic solution is sprayed into the quartz reaction pipe for multiple times through the reciprocating movement of the electric lifting table. The device has the advantages of simple structure, convenient operation and strong controllability, can be used for doping various ion solutions with different concentrations, and improves the doping uniformity of the optical fiber preform.
Description
Technical Field
The invention relates to an optical fiber preform preparation device, in particular to a doping solution spraying device and a spraying method.
Background
With the development of laser technology, the laser is widely applied to military and civil fields, and meanwhile, the requirements on the laser are higher and higher, and the laser has high quality, high power and high efficiency, which are important criteria for judging the quality of the laser. In recent years, a laser fiber laser doped with rare earth ions has been paid attention to gradually because of the advantages of good beam quality, small volume, high speed, long service life and the like. And has been widely used in various fields such as laser welding, medical field, laser communication, etc.
The core part of the laser fiber laser is the rare earth ion doped fiber, the rare earth ion doped fiber preform is the necessary part for drawing the rare earth ion doped fiber, and the rare earth ion doped doping process is divided into two main types, namely a liquid phase doping method and a gas phase doping method. The liquid phase doping method is to soak the loose layer with ion solution to make the ions in the ion solution absorbed by the loose layer, so as to achieve the purpose of doping rare earth ions. The liquid phase doping method is easy to generate the phenomena of uneven doping concentration, falling off of the isolation layer and the like, and the solution soaking process flow is complex. The gaseous reactant is used to directly produce RE ion compound in quartz reaction tube to reach the aim of doping. However, since the chelate complex itself contains carbon element, carbon deposition is liable to occur, and the loss of the optical fiber becomes high. And the gas phase doping method can condense the gaseous reactants into solid state due to the slight reduction of the temperature due to the saturated gaseous reactants, do not participate in the reaction, and easily block the pipeline.
Disclosure of Invention
In view of the problems of the prior art, the invention provides a doping solution spraying device and a doping solution spraying method. By adopting the telescopic ion solution spraying mode, the problems of uneven ion concentration and easy falling of loose layers are solved, so that the purposes of improving the optical fiber absorption uniformity, reducing the optical fiber loss and improving the light beam quality and the optical fiber service life of the optical fiber laser are achieved. The technical scheme is that the homogenizing solution doping device comprises a solution storage, a guide pipe, a sprayer, a hard hollow pipe, a quartz reaction pipe, an electric lifting table, a guide rail, a speed sensor, a nitrogen conveying pipe with a pressure regulating valve and a supporting seat, wherein the solution storage is fixed on the upper end face of the supporting seat, the nitrogen conveying pipe with the pressure regulating valve is fixed above the liquid level of the solution storage, the sprayer is positioned at the upper end of a supporting part of the quartz reaction pipe and is at the initial position of the sprayer, the electric lifting table is arranged in the guide rail, the guide rail direction is the same as the direction of the quartz reaction pipe, the hard hollow pipe is fixed on the electric lifting table in an interference fit manner, the speed sensor is fixed on the electric lifting table, a plurality of hoses extend out of two ends of the guide pipe respectively, one ends of the hoses are respectively arranged at the bottom of the liquid level of each solution storage, the other ends of the hoses are respectively connected with a riser pipe of the sprayer, the sprayer is fixed on the hard hollow pipe, one end of the hard hollow pipe with the sprayer is inserted into the quartz reaction pipe, and the other end of the hard hollow pipe is fixed on the guide pipe.
The inner diameter of the catheter is 17-18mm.
The sprayer is a multi-layer cylinder with a circular cavity inside, the outer diameter is 20-21mm, and the height is 25-30 mm; the inner diameter of the circular cavity is 18-19mm, the height is 10-11mm, each layer is internally provided with a circular cavity cylinder, the bottom of the cavity is provided with a circular through hole which is mutually different, the vertical pipes in the cavity respectively penetrate through the top end surface of the cylinder at the uppermost layer and are matched with the hollow soft catheter of the catheter, and the number of the radial thin through holes on the circumference surface of each layer of cylinder with the circular cavity is not less than three and is uniformly distributed along the circumference surface.
The inner diameter of the quartz reaction tube is 20-mm-25 mm, the quartz reaction tube consists of a supporting part at the upper end and a reaction part at the lower end, the height of the reaction part is 600+/-10 mm, and the height of the supporting part is 500+/-10 mm; the inner diameter of the reaction part of the quartz reaction tube is 20-mm-25 mm, and the supporting part of the quartz reaction tube (the bending degree after the deposition of the loose layer is small, so that the hard hollow tube and the sprayer can conveniently enter the reaction part of the quartz reaction tube).
The spraying method comprises the following steps that firstly, an isolation layer is deposited on the inner wall of a quartz reaction tube and is used for preventing impurity ions in the quartz reaction tube from entering a core layer; secondly, carrying out loose layer deposition on a reaction part of the quartz reaction tube with the deposition isolation layer, wherein the loose layer is an unsintered, opaque and porous deposition layer for adsorbing solute ions in a solution, the inner diameter of the reaction part of the quartz reaction tube after the loose layer deposition is 20-mm mm, and the curvature of the support part of the quartz reaction tube after the loose layer deposition is small, so that a hard hollow tube and a sprayer can conveniently enter the reaction part of the reaction tube; thirdly, fixing the supporting part of the quartz reaction tube on a chuck of a supporting seat, wherein one end of a hard hollow tube is connected with a sprayer, the other end of the hard hollow tube is connected and fixed with a guide tube fixed at the uppermost end of the electric lifting table, the sprayer is arranged at the upper end of the quartz reaction tube, and at the moment, the sprayer is at the initial position, and deionized water is adopted for cleaning the hard hollow tube and the sprayer before use; starting an electric lifting table, wherein the electric lifting table drives a sprayer at the lower end of a rigid hollow pipe to axially move into a designated position in a quartz reaction pipe, the stepping speed range of the sprayer is controlled to be 1-10 mm/s, a speed sensor on the electric lifting table receives position information of the sprayer through calculation in real time, a nitrogen inlet switch is simultaneously opened, hose pipeline switches on a plurality of storages filled with ion solution are opened, the flow rate of the ion solution is controlled to be 3ml/s, the ion solution passes through hoses and is respectively connected with a circular cavity of the sprayer, the ion solution is sprayed out from radial fine through holes of the sprayer, and the flow rate range of the ion solution sprayed into the quartz reaction pipe by the sprayer is controlled to be 1-6 ml/s; (V) when the ion solution spraying reaches the designated quantity, closing a hose pipeline switch between the ion solution storage and a hose of the catheter, closing a nitrogen inlet pressure valve, stopping spraying the ion solution by the sprayer, and enabling the electric lifting table to drive the hard hollow tube and the sprayer to do reverse axial movement until the sprayer returns to the initial position, and closing the electric lifting table; sixthly, after the ion solution is injected, a small amount of liquid remains in the hose and the sprayer, and the hose and the sprayer are purged and cleaned up to avoid polluting or blocking a pipeline; loosening a chuck of the supporting seat, taking down the quartz reaction tube, mounting the quartz reaction tube on a rod making lathe, standing and drying; so far, the ion solution doping is finished.
The invention has the advantage that ion solution doping with different varieties and different concentrations can be carried out. The method solves the problem that the concentration of the ion solution is uneven when the preform is soaked in the traditional method, and further improves the qualification rate of the optical fiber, thereby reducing the loss of the optical fiber and improving the beam quality of the optical fiber laser. And the solution flow rate or the sprinkler stepping speed can be controlled so as to control the doping ion concentration of the optical fiber preform, thereby meeting the use requirements in various aspects.
Drawings
FIG. 1 is a schematic perspective view of the structure of the present invention;
FIG. 2 is a schematic perspective view of the sprinkler structure of the present invention;
fig. 3 is a cross-sectional view of the sprinkler A-A of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example 1
The ytterbium-doped optical fiber preform is manufactured in a relatively common mode.
As shown in FIGS. 1, 2 and 3, the thickness of the inner wall of the quartz reaction tube 6 is selected to be about 23mm, the length of the reaction portion 6-2 of the quartz reaction tube 6 is about 600mm, and the length of the support portion 6-1 is about 500 mm. The length of the selected hard hollow tube 4 is about 1150mm, the outer diameter is about 4.5 and mm, the hard hollow tube can be made of materials with elasticity and rigidity such as fluoroplastic, the inner diameter is about 3.5mm, the outer diameter of the sprinkler 3 is about 20.5mm, the inner diameter is about 19mm, the height is 25mm, the inner diameter of the round cavity 3-1 is 18mm and the height is 10mm, six radial thin through holes 3-2 uniformly distributed along the circumference are arranged on the side surface of each cavity, the outer diameter of the guide tube 2 is 18.5mm, the length requirement is related to the placement position of an actual instrument, and the phenomenon that the hard hollow tube 4 is not folded is required to be ensured.
The spraying steps are as follows:
firstly, depositing an isolation layer on the inner wall of the quartz reaction tube 6 for preventing impurity ions in the quartz reaction tube 6 from entering a core layer;
secondly, loose layer deposition is carried out on the reaction part 6-2 of the quartz reaction tube 6 deposited with the isolation layer, the loose layer is an unsintered, opaque and porous deposition layer which is used for adsorbing solute ions in solution, the inner diameter of the reaction part 6-2 of the quartz reaction tube 6 after the loose layer deposition is 20 mm-25 mm, the curvature of the support part 6-1 of the quartz reaction tube 6 after the loose layer deposition is small, and the hard hollow tube 4 and the sprayer 3 can conveniently enter the reaction part 6-2 of the reaction tube;
(III) fixing the support part 6-1 of the quartz reaction tube 6 on the chuck 11-1 of the support base 11, inserting a rigid hollow tube 4 fixed on the electric elevating table 7 with one end of the rigid hollow tube 4 connected with the sprinkler 3 into the initial position of the sprinkler 3 at the uppermost end of the reaction part 6-2 of the quartz reaction tube 6, fixing the other end of the rigid hollow tube 4 on the guide tube 2,
fourthly, starting the electric lifting table 7, wherein the electric lifting table 7 drives the sprayer 3 at the lower end of the hard hollow tube 4 to axially move into the designated position of the quartz reaction tube 6, the stepping speed is 3mm/s, simultaneously, the nitrogen inlet switch is turned on, a hose pipeline switch in the ytterbium ion solution storage 1 is turned on, the flow rate of ytterbium ion solution is controlled to be 3ml/s, the ytterbium ion solution enters the guide tube 2 through the bottom extending hose 2-1, and the radial thin through hole 3-2 of the sprayer 3 reaching the top is sprayed out.
(V), when the ytterbium ion solution is sprayed to reach the designated quantity, closing a pipeline switch between the ion solution reservoir and the hose 2-1 of the conduit 2, closing a nitrogen inlet pressure valve, stopping spraying the ion solution by the sprayer 3, driving the hard hollow tube 4 and the sprayer 3 to do reverse axial movement by the electric lifting table until the sprayer 3 returns to the initial position, and closing the electric lifting table 7;
sixthly, after the ion solution is injected, a small amount of liquid remains in the hose 2-1 and the sprayer 3, and the hose 2-1 and the sprayer 3 are purged and cleaned up to avoid pollution or blockage of a pipeline;
seventhly, loosening the chuck 11-1 of the supporting seat 11, taking down the quartz reaction tube 6, mounting the quartz reaction tube on a rod making lathe, standing and drying; so far, the ion solution doping is finished.
Working principle: the electric lifting table 7 is in interference fit with the guide pipe 2, and the electric lifting table 7 is provided with a motor driving device, so that the electric lifting table 7 is driven to move up and down on the guide rail 8 along the vertical direction and enter or leave the quartz reaction tube 6. The baffle is arranged in the horizontal direction, so that the electric lifting platform 7 cannot move in the horizontal direction. And meanwhile, the speed sensor on the electric lifting table is received in real time, and the position information of the sprayer 3 is obtained through calculation.
The feeding speed of the ionic solution is controlled by controlling the nitrogen to be conveyed, the liquid level of the ionic solution is low under the action of pressure, and the nitrogen solution flows out through the hard hollow tube 4 and enters a sprayer to be sprayed out.
The manufacturing process of the optical fiber preform doped with other rare earth ions and the optical fiber preform doped with other kinds of co-ions can refer to the embodiment, and corresponding devices such as an ion solution conveying pipeline, a gas valve, a flowmeter and the like are required to be added, and other operations are the same as those of the first embodiment.
Claims (5)
1. The utility model provides a homogenization solution doping device, includes solution storage (1), pipe (2), sprinkler (3), stereoplasm hollow tube (4), quartz reaction tube (6), electric lift platform (7), guide rail (8), speed sensor (9), take nitrogen gas conveyer pipe (10) and supporting seat (11) of pressure regulating valve, its characterized in that: the solution storage device is characterized in that a plurality of solution storages (1) are fixed on the upper end face of a supporting seat (11), a nitrogen conveying pipe (10) with a pressure regulating valve is fixed above the liquid level of the plurality of solution storages (1), a sprayer (3) is positioned at the upper end of a supporting part (6-1) of a quartz reaction pipe (6), the initial position of the sprayer (3) is provided, an electric lifting table (7) is arranged in a guide rail (8), the guide rail (8) and the quartz reaction pipe (6) are fixed in the same direction, a hard hollow pipe (4) is fixed on the electric lifting table (7) in an interference fit manner, a speed sensor (9) is fixed on the electric lifting table (7), a plurality of hoses (2-1) extend out of two ends of a guide pipe (2) respectively, one end of each hose is arranged at the bottom of the liquid level of each solution storage device (1) respectively, the other end of each hose is connected with a vertical pipe (3-3) of the sprayer (3), one end of the hard hollow pipe (4) with the sprayer (3) is fixed on the hard hollow pipe (4) is inserted into the quartz reaction pipe (6), and the other end of the hard hollow pipe (4) with the sprayer (3) is fixed on the guide pipe (2).
2. A homogenized solution doping apparatus in accordance with claim 1, wherein: the inner diameter of the conduit (2) is 17-18mm.
3. A homogenized solution doping apparatus in accordance with claim 1, wherein: the sprayer (3) is a multi-layer cylinder with a circular cavity (3-1) inside, the outer diameter is 20-21mm, and the height is 25-30 mm; the inner diameter of the circular cavity (3-1) is 18-19mm, the height is 10-11mm, the bottom of each layer of circular cavity cylinder (3-1) is provided with a circular through hole (3-4) which is different from each other, the vertical pipes (3-3) penetrate through the top end surface of the uppermost layer of cylinder respectively and are matched with the hollow soft catheter (2-1) of the catheter (2), and the number of the radial thin through holes (3-2) which are not less than three are arranged on the circumferential surface of each layer of circular cavity cylinder (3-1) and are uniformly distributed along the circumferential surface.
4. A homogenized solution doping apparatus in accordance with claim 1, wherein: the inner diameter of the quartz reaction tube (6) is 20 mm-25 mm, the quartz reaction tube consists of a supporting part (6-1) at the upper end and a reaction part (6-2) at the lower end, the height of the reaction part (6-2) is 600+/-10 mm, and the height of the supporting part (6-1) is 500+/-10 mm; the inner diameter of the reaction part (6-2) of the quartz reaction tube (6) is 20-mm-25 mm, and the curvature of the support part (6-1) of the quartz reaction tube (6) after the loose layer is deposited is small, so that the hard hollow tube (4) and the sprayer (3) can conveniently enter the reaction part (6-2) of the quartz reaction tube.
5. A spray method employing a homogenized solution doping method as set forth in claim 1, characterized in that:
the spraying method comprises the following steps of,
firstly, depositing an isolation layer on the inner wall of the quartz reaction tube (6) for preventing impurity ions in the quartz reaction tube (6) from entering a core layer;
secondly, carrying out loose layer deposition on a reaction part (6-2) of the quartz reaction tube (6) with a deposition isolation layer, wherein the loose layer is an unsintered, opaque and porous deposition layer used for adsorbing solute ions in a solution, the inner diameter of the reaction part (6-2) of the quartz reaction tube (6) after the loose layer deposition is 20-mm-25 mm, and the curvature of the support part (6-1) of the quartz reaction tube (6) after the loose layer deposition is small, so that the hard hollow tube (4) and the sprayer (3) can conveniently enter the reaction part (6-2) of the reaction tube;
thirdly, fixing a supporting part (6-1) of the quartz reaction tube (6) on a chuck (11-1) of a supporting seat (11), wherein one end of a hard hollow tube (4) is connected with a sprayer (3), the other end of the hard hollow tube is connected and fixed with a guide tube (2) fixed at the uppermost end of an electric lifting table (7), the sprayer (3) is arranged at the upper end of the quartz reaction tube (6), at the moment, the initial position of the sprayer (3), and the hard hollow tube (4) and the sprayer (3) are cleaned by deionized water before use;
fourthly, starting an electric lifting table (7), wherein the electric lifting table (7) drives a sprayer (3) at the lower end of a hard hollow pipe (4) to axially move into a designated position in a quartz reaction pipe (6), the stepping speed range of the sprayer (3) is controlled to be 1mm/s-10mm/s, a speed sensor (9) on the electric lifting table (7) receives position information of the sprayer (3) obtained through calculation in real time, a nitrogen inlet switch is simultaneously opened, hose pipeline switches on a plurality of storages (1) filled with ion solution are opened, the flow rate of the ion solution is controlled to be 3ml/s, the ion solution passes through hoses (2-1) and is respectively connected with the circular cavities (3-4) of the sprayer (3), the radial fine through holes (3-2) of the sprayer (3) are sprayed, and the flow rate range of the ion solution sprayed into the quartz reaction pipe (6) by the sprayer (3) is controlled to be 1ml/s-6ml/s;
(V) when the ion solution spraying quantity reaches the designated quantity, closing a hose pipeline switch between the ion solution storage and a hose (2-1) of the catheter (2), closing a nitrogen inlet pressure valve, stopping spraying the ion solution by the sprayer (3), driving the hard hollow tube (4) and the sprayer (3) to do reverse axial movement by the electric lifting table (7) until the sprayer (3) returns to the initial position, and closing the electric lifting table (7);
sixthly, after the ion solution is injected, a little liquid remains in the hose (2-1) and the sprayer (3), and the hose (2-1) and the sprayer (3) are purged and cleaned up to avoid pollution or blockage of a pipeline;
loosening the chuck (11-1) of the supporting seat (11), taking down the quartz reaction tube (6), mounting the quartz reaction tube on a rod making lathe, standing and drying; so far, the ion solution doping is finished.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117602816A (en) * | 2024-01-23 | 2024-02-27 | 创昇光电科技(苏州)有限公司 | MCVD on-line doped prefabricated rod and preparation method thereof |
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| CN214327557U (en) * | 2020-11-13 | 2021-10-01 | 中国电子科技集团公司第四十六研究所 | Doping solution spraying device |
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| CN106698920A (en) * | 2016-12-19 | 2017-05-24 | 中国电子科技集团公司第四十六研究所 | Method for doping ionic solution for preparing active optical fiber |
| CN110668693A (en) * | 2019-11-18 | 2020-01-10 | 中国电子科技集团公司第四十六研究所 | Ion solution doping method and device for preparing active optical fiber |
| CN112299703A (en) * | 2020-11-13 | 2021-02-02 | 中国电子科技集团公司第四十六研究所 | Doping solution spraying device and method |
| CN214327557U (en) * | 2020-11-13 | 2021-10-01 | 中国电子科技集团公司第四十六研究所 | Doping solution spraying device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117602816A (en) * | 2024-01-23 | 2024-02-27 | 创昇光电科技(苏州)有限公司 | MCVD on-line doped prefabricated rod and preparation method thereof |
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