CN2429529Y - Microwave apparatus for producing preformed products of optical fibers - Google Patents
Microwave apparatus for producing preformed products of optical fibers Download PDFInfo
- Publication number
- CN2429529Y CN2429529Y CN 00230170 CN00230170U CN2429529Y CN 2429529 Y CN2429529 Y CN 2429529Y CN 00230170 CN00230170 CN 00230170 CN 00230170 U CN00230170 U CN 00230170U CN 2429529 Y CN2429529 Y CN 2429529Y
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- Prior art keywords
- microwave
- optical preform
- make fibre
- metallic cylinder
- resonator
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- Expired - Lifetime
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- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The utility model relates to a microwave apparatus for producing preformed products of optical fibers in a PCVD method, which comprises a microwave generator, a supporting seat frame and a microwave resonant cavity arranged on the upper end of the supporting seat frame. The microwave generator is switched on the microwave resonant cavity by a waveguide transmission converting apparatus. The utility model can effectively implement the PCVD method, exactly produces the preformed products of the optical fibers, and the advantages of simple and reasonable structure arrangement, high reliability, simple manufacture and production and low cost.
Description
The utility model relates to a kind ofly makes the microwave device of fibre-optical preform with the PCVD legal system, belongs to the optical fiber fabrication equipment technical field.
Along with the develop rapidly of communication industry, the demand of optical fiber is constantly increasing, and optical fiber technology and optical fiber fabrication technology are also upgraded in development constantly.Usually, optical fiber shortens rod by the glass lined bottom tube of coating into through high temperature is molten, makes through wire drawing again.The glass lined bottom tube that wherein has glass coating is fibre-optical preform, is a most important link in the optical fiber production.At present, had the processing method of several production fibre-optical preforms, as the MCVD method,, OVD method, VAD method, PCVD method etc., the PCVD method is a microwave activate plasma chemical Vapor deposition process, characteristics with flexible precision, microwave device then are the cores of PCVD method making equipment.Now, though had PCVD method making equipment and microwave device thereof, its concrete structure is not seen in the report in open source literature as yet.
The purpose of this utility model is to design a kind of microwave device that is used to make fibre-optical preform, and it can not only effectively implement the PCVD method, and simple in structure, and cost is lower, is easy to make.
The utility model is realized by following technical scheme: include microwave generator 16, a mounting 5, be installed in a microwave resonator of mounting upper end, microwave generator is conducted by guided transmission transfer equipment and microwave resonator.
Press such scheme, microwave resonator is made of inside and outside metallic cylinder 7,8, interior metallic cylinder 7 is broken as left and right two-section, leave axially spaced-apart 9, the endless metal cover plate 11 at inside and outside metallic cylinder and two ends is linked into one, the below of metallic cylinder offers microwave admission port 14 outside, the tubular microwave resonator that to constitute a middle part thus be through hole; The guided transmission transfer equipment is made of the waveguide 17, the waveguide coaxial converter 18 that link with microwave generator and the coaxial line 15 that communicates with microwave resonator.
When the utility model uses, work piece glass lined bottom tube 6 is passed coaxially the through hole at microwave resonator middle part, and seal by two supports, be filled with mixed gas in the glass lined bottom tube, microwave is produced by microwave generator and is coupled to microwave resonator through Waveguide conversion device, mixed gas in the microwave-excitation glass lined bottom tube in the microwave resonator makes it to become plasma body 12 and produces chemical reaction, in the glass lined bottom tube, generate one deck densification, bubble-free, the glass coating of close attachment, when microwave resonator along the glass substrate tubular axis to relative operation one time, just generate one deck glass coating at the glass substrate inside pipe wall, fibre-optical preform is coated several thousand layers of glass coating by glass substrate and is made, can finish above-mentioned task by microwave resonator along the operation back and forth of glass lined bottom tube, the specific refractory power of each layer can be identical in the glass coating, also can be different.
Positively effect of the present utility model is: 1, can effectively implement the PCVD method, precision is produced fibre-optical preform exactly; 2, structure is provided with advantages of simple, and working reliability is strong, and failure rate is low; 3, be easy to produce and make, cost of manufacture is lower.
Fig. 1 is the structure iron of facing of an embodiment of the utility model.
Fig. 2 is the side-looking structure iron of an embodiment of the utility model.
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include microwave generator 16, prop up mounting 5 and microwave resonator, microwave resonator is installed in the upper end of a mounting, microwave generator is conducted by guided transmission transfer equipment and microwave resonator, the guided transmission transfer equipment comprises the waveguide 17 that links with microwave generator, waveguide coaxial converter 18 and the coaxial line 15 that communicates with microwave resonator, the microwave that microwave generator produces is through waveguide, waveguide coaxial converter and coaxial line are coupled to microwave resonator, microwave frequency can be 2.45GHZ, power is that 1-5KW is adjustable, microwave resonator is by in the coaxial line, outer metallic cylinder 7,8 are socketed to form, and connect firmly mutually by the endless metal cover plate 11 at two ends, there is axially extending bore at the middle part, the middle part of interior metallic cylinder is broken as a left side, right two-section, stay axially spaced-apart 9, axially spaced-apart be opened in outer metallic cylinder week microwave downwards and enter 14 corresponding, be provided with cooling-water duct 13 in the barrel of outer metallic cylinder 8, be connected with cooling water source during work, be wrapped with thermofin 10 in microwave resonator, so that it can be worked in up to 1200 ℃ high temperature, in addition, propping up the following of mounting 5 can link with a straight line reciprocating mechanism, linear reciprocating mechanism comprises sliding seat 4, configuration polished rod 2 under sliding seat, sliding seat with drive the cog belt 3 that it moves and link, the two ends of profile of tooth point are provided with the driving gear teeth 1 that are meshed with it, bring the pulling sliding seat to move around by profile of tooth.
The working process of present embodiment is: the glass lined bottom tube passes the axially extending bore of the aerial portion of microwave resonance, two supports and sealing, and an end is the mixed gas upstream end, the other end is that gas is extracted end out, mixed gas in the glass lined bottom tube becomes plasma body under the effect of microwave, produce chemical reaction, linear reciprocating mechanism drives microwave resonator by a mounting and moves back and forth, along with vertically at the uniform velocity mobile of microwave resonator, can in the glass lined bottom tube, generate the glass coating that one deck has certain specific refractory power, repeatedly reciprocal, can form the multiple glazing coating, a fibre-optical preform will be coated with several thousand layers.
Claims (7)
1, a kind of microwave device that is used to make fibre-optical preform, it is characterized in that including microwave generator (16), a mounting (5), be installed in a microwave resonator of mounting upper end, microwave generator is conducted by guided transmission transfer equipment and microwave resonator.
2, by the described microwave device that is used to make fibre-optical preform of claim 1, it is characterized in that described microwave resonator is made of inside and outside metallic cylinder (7), (8), interior metallic cylinder (7) is broken as left and right two-section, leave axially spaced-apart (9), the endless metal cover plate (11) at inside and outside metallic cylinder and two ends is linked into one, the below of metallic cylinder offers microwave admission port (14) outside, the tubular microwave resonator that to constitute a middle part thus be through hole.
3,, it is characterized in that described guided transmission transfer equipment is made of the waveguide (17), the waveguide coaxial converter (18) that link with microwave generator and the coaxial line (15) that communicates with microwave resonator by claim 1 or the 2 described microwave devices that are used to make fibre-optical preform.
4, by claim 1 or the 2 described microwave devices that are used to make fibre-optical preform, it is characterized in that microwave frequency is 2.45GHZ, power is that 1-5KW is adjustable.
5,, it is characterized in that being provided with cooling-water duct (13) in the barrel of outer metallic cylinder (8) by the described microwave device that is used to make fibre-optical preform of claim 2.
6,, it is characterized in that microwave resonator is wrapped with thermofin (10) by claim 2 or the 5 described microwave devices that are used to make fibre-optical preform.
7,, it is characterized in that the below and a straight line reciprocating mechanism of a mounting (5) links by claim 1 or the 2 described microwave devices that are used to make fibre-optical preform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230170 CN2429529Y (en) | 2000-06-16 | 2000-06-16 | Microwave apparatus for producing preformed products of optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00230170 CN2429529Y (en) | 2000-06-16 | 2000-06-16 | Microwave apparatus for producing preformed products of optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429529Y true CN2429529Y (en) | 2001-05-09 |
Family
ID=33593311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00230170 Expired - Lifetime CN2429529Y (en) | 2000-06-16 | 2000-06-16 | Microwave apparatus for producing preformed products of optical fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429529Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249532A (en) * | 2011-04-15 | 2011-11-23 | 长飞光纤光缆有限公司 | Optical fiber preform deposition lathe for PCVD (plasma chemical vapor deposition) processing |
| CN105244251A (en) * | 2015-11-03 | 2016-01-13 | 长飞光纤光缆股份有限公司 | High-power plasma microwave resonant cavity |
| CN105502918A (en) * | 2015-12-25 | 2016-04-20 | 长飞光纤光缆股份有限公司 | Double-cavity plasma microwave resonant cavity |
| CN117105521A (en) * | 2023-10-25 | 2023-11-24 | 武汉市飞瓴光电科技有限公司 | Device and method for preparing doped silicon dioxide material |
-
2000
- 2000-06-16 CN CN 00230170 patent/CN2429529Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249532A (en) * | 2011-04-15 | 2011-11-23 | 长飞光纤光缆有限公司 | Optical fiber preform deposition lathe for PCVD (plasma chemical vapor deposition) processing |
| CN105244251A (en) * | 2015-11-03 | 2016-01-13 | 长飞光纤光缆股份有限公司 | High-power plasma microwave resonant cavity |
| CN105502918A (en) * | 2015-12-25 | 2016-04-20 | 长飞光纤光缆股份有限公司 | Double-cavity plasma microwave resonant cavity |
| CN117105521A (en) * | 2023-10-25 | 2023-11-24 | 武汉市飞瓴光电科技有限公司 | Device and method for preparing doped silicon dioxide material |
| CN117105521B (en) * | 2023-10-25 | 2024-01-19 | 武汉市飞瓴光电科技有限公司 | Device and method for preparing doped silicon dioxide material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20010509 |