CN102354024A - Optical fiber splicing method - Google Patents
Optical fiber splicing method Download PDFInfo
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- CN102354024A CN102354024A CN 201110185695 CN201110185695A CN102354024A CN 102354024 A CN102354024 A CN 102354024A CN 201110185695 CN201110185695 CN 201110185695 CN 201110185695 A CN201110185695 A CN 201110185695A CN 102354024 A CN102354024 A CN 102354024A
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- optical fiber
- cooling fluid
- mode field
- circulating cooling
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Abstract
The invention discloses an optical fiber splicing method, which comprises the following steps of: putting optical fibers with different melting temperatures and the same mode field diameter between a pair of body heating sources, sleeving a heat resistance sleeve with a rectangular section on the outer side of the optical fiber at low melting temperature, feeding circulation cooling fluid into the heat resistance sleeve and then splicing; and putting optical fibers with different melting temperatures and different mode field diameters between the pair of body heating sources, sleeving the heat resistance sleeve with the rectangular section on the outer side of the optical fiber at the low melting temperature and sleeving a heat resistance sleeve with a wedged section on the outer side of the optical fiber with the small mode field diameter, feeding circulation cooling fluid into the heat resistance sleeves and then splicing. By the method, optical fibers with large melting temperature differences and large mode field diameter differences can be connected with one another efficiently.
Description
Technical field
The present invention relates to fused fiber splice method field, specifically is a kind of fused fiber splice method.
Background technology
Traditional optical fiber communication and optical fibre device are mainly realized through rear-earth-doped quartz glass optical fiber; Between the quartz glass optical fiber owing to have similar optical characteristics and a thermodynamic behaviour; The common symmetrical type of heating of general employing can be realized the low-loss welding, and the fusion techniques between the quartz glass optical fiber is also comparatively ripe.Yet quartz glass optical fiber causes its rear-earth-doped content lower because its intrinsic design feature, and this has seriously limited the gain coefficient etc. of quartz glass optical fiber.Therefore, the multicomponent glass optical fiber with high rear-earth-doped ability, excellent performance has great importance for the development of all-optical network of future generation, optical fiber sensing system and Internet of Things! Yet; Be faced with a new problem with multicomponent glass optical fiber again as the development of the novel optical fiber device of medium---how to realize the welding between multicomponent glass optical fiber and conventional quartz glass optical fiber; Two kinds of high-quality being welded together of glass optical fiber that will have different mould field, different melt temperature, different optical characteristic and thermodynamic behaviour; Need when fused fiber splice, realize suitable temperature field intensity, gradient and distribution simultaneously in the both sides of weld.Sweden Ellison Telephone Co., Ltd (ZL 200480026815.1) once proposed in 2004 through during pre-fusion process, taking warm image to capture hot light emission and to confirm heating arc center position; The control temperature field distributes, and has realized having the welding of adaptive mode field diameter optical fiber.Corning Incorporateds etc. also once utilized the mode of asymmetric heating to realize the welding between different melt temperature glass optical fibers.Yet, regulate and control temperature field intensity, gradient and the distribution of heating region simultaneously, realize the welding of different melt temperatures, different mode field diameter optical fiber simultaneously, also have sizable difficulty! In addition, than the mode of a heating source (like LASER HEATING etc.), the body heating source (like the resistance board heating etc.) have more uniform heating temperature field, be applicable to the welding that has between thick diameter and abnormally-structured optical fiber more.
Summary of the invention
The objective of the invention is to deficiency to prior art; A kind of fused fiber splice method is provided; The present invention utilizes the hot coefficient of resistance of the circulating fluid of the shape of regulating resistance thermal sleeve section and interior feeding thereof, effectively realizes the welding between different thermal characteristics and the mode field diameter optical fiber.
The present invention realizes that the technical scheme that purpose adopts is:
A kind of fused fiber splice method comprises: the optical fiber of different melt temperatures, identical mode field diameter is placed between a pair of body heating source, and puts the resistance thermal sleeve of rectangular cross section in the low melting glass outer fiber, and feed circulating cooling fluid, carry out welding then; The optical fiber of different melt temperatures, different mode field diameters is placed between a pair of body heating source; Not only put the resistance thermal sleeve of rectangular cross section in the low melting glass outer fiber; And put the resistance thermal sleeve of wedge section in the little outer fiber of mode field diameter; All feed circulating cooling fluid in the sleeve pipe, carry out welding then.
Said circulating cooling fluid comprises that the room temperature coefficient of heat conductivity is that the water of 0.62 W/mK or mass percent that the room temperature coefficient of heat conductivity is 0.55 W/mK are 30% calcium chloride brine, atmospheric argon gas and nitrogen.
When said circulating cooling fluid was liquid, its flow rate was 0.01 ~ 5 m/s.
When said circulating cooling fluid was gas, its flow rate was 0.01 ~ 10 m/s.
Compared with prior art, the present invention has following advantage and beneficial effect:
Advantage of the present invention is, the different melt temperatures that the classic method of welding simultaneously can not welding, the optical fiber of different mode field diameters.The hot coefficient of resistance of the shape through regulating resistance thermal sleeve section and the circulating fluid of interior feeding thereof can in very large range be regulated temperature field intensity and Gradient distribution, realizes the permanent welding of low-loss of the optical fiber of different melt temperatures, different mode field diameters.
Description of drawings
Fig. 1 is the welding synoptic diagram of the different melt temperatures of the present invention, identical mode field diameter optical fiber;
Fig. 2 is the feeding mode synoptic diagram of circulating cooling fluid of the present invention;
Fig. 3 is the welding synoptic diagram of the different melt temperatures of the present invention, different mode field diameter optical fiber;
Fig. 4 is the welding synoptic diagram of the different melt temperatures of the present invention, different mode field diameter optical fiber.
Embodiment
Below in conjunction with specific embodiment the present invention is done further concrete detailed description the in detail, but embodiment of the present invention is not limited thereto, the technological parameter for not indicating especially can carry out with reference to routine techniques.
(softening point is 450～700 with low melting glass phosphate glass optical fiber
oC) and high melting temperature standard quartz glass optical fiber (softening point is 1600～1750
oC) welding between is an example.
As shown in Figure 1, phosphate glass optical fiber 1 carefully is positioned in the V-type groove of heat sealing machine with the silica fibre 2 that divests coat, regulates the position of two optical fiber, makes two profile of optic fibre symmetries be positioned over symmetrical heating source 12 centers.When phosphate glass optical fiber mode fields 3 was identical with silica fibre mould field 4 diameters that divest coat, a section was the resistance thermal sleeve 5 of rectangle on phosphate glass optical fiber 1 outer race, and feeding circulating cooling fluid-room temperature coefficient of heat conductivity in this rectangular resistance thermal sleeve 5 is the water of 0.62 W/mK; The temperature field is adjusted to suitable silica fibre 2 thermal characteristics; Make phosphate glass optical fiber 1 one regions temperature fields and its thermal characteristic coupling, like this, silica fibre 2 is in the high-temperature region; 1 of phosphate glass optical fiber is in low-temperature space; Two optical fiber all are in molten condition, after anchor clamps 6 mobile devices advance, well are welded together.
Resistance thermal sleeve 5 adopts the mode that feeds circulating cooling fluid to hinder heat, and the feeding mode of circulating cooling fluid is as shown in Figure 2, is flow to by import 7, is flowed out by outlet 8 circulations again.
As shown in Figure 3; When phosphate glass optical fiber mode fields 9 diameters during less than quartz glass optical fiber mould field 10 diameters; A section is the resistance thermal sleeve 11 of wedge shape on phosphate glass optical fiber 1 outer race; The temperature field is adjusted to the thermal characteristic that is fit to silica fibre 2; Feeding room temperature coefficient of heat conductivity is that the mass percent of 0.55 W/mK is 30% calcium chloride brine in the wedge shape resistance thermal sleeve 11, makes phosphate glass optical fiber 1 one regions temperature fields and its thermal characteristic coupling, utilizes the wedge section of wedge shape resistance thermal sleeve 11 simultaneously; Form suitable temperature gradient field in phosphate glass optical fiber 1 one sides; This temperature gradient field can play the effect that enlarges phosphate glass optical fiber mode fields 9 diameters, makes phosphate glass optical fiber 1 one sides have suitable temperature field and gradient fields distribution, realizes the welding between little mode field diameter phosphate glass optical fiber and big mode field diameter silica fibre.
As shown in Figure 4; When phosphate glass optical fiber mode fields 9 diameters during greater than quartz glass optical fiber mould field 10 diameters; A section is 5 whiles of resistance thermal sleeve of rectangle on phosphate glass optical fiber 1 outer race; A section is the interior circulating cooling fluid-atmospheric argon gas that feeds of 11, two kinds of sleeve pipes of resistance thermal sleeve of wedge shape on quartz glass optical fiber 2 outer race, makes phosphate glass optical fiber 1 one regions have suitable low temperature field intensity; And make quartz glass optical fiber 1 one sides have suitable temperature field and gradient fields distribution, thereby realize the welding between big mode field diameter phosphate glass optical fiber and little mode field diameter silica fibre.
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. fused fiber splice method; It is characterized in that, comprising: the optical fiber of different melt temperatures, identical mode field diameter is placed between a pair of body heating source, and puts the resistance thermal sleeve of rectangular cross section in the low melting glass outer fiber; And the feeding circulating cooling fluid, carry out welding then; The optical fiber of different melt temperatures, different mode field diameters is placed between a pair of body heating source; Not only put the resistance thermal sleeve of rectangular cross section in the low melting glass outer fiber; And put the resistance thermal sleeve of wedge section in the little outer fiber of mode field diameter; All feed circulating cooling fluid in the sleeve pipe, carry out welding then.
2. method according to claim 1; It is characterized in that; Said circulating cooling fluid comprises that the room temperature coefficient of heat conductivity is that the water of 0.62 W/mK or mass percent that the room temperature coefficient of heat conductivity is 0.55 W/mK are 30% calcium chloride brine, atmospheric argon gas and nitrogen.
3. method according to claim 1 is characterized in that, when said circulating cooling fluid was liquid, its flow rate was 0.01 ~ 5 m/s.
4. method according to claim 1 is characterized in that, when said circulating cooling fluid was gas, its flow rate was 0.01 ~ 10 m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110185695 CN102354024B (en) | 2011-07-05 | 2011-07-05 | Optical fiber splicing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110185695 CN102354024B (en) | 2011-07-05 | 2011-07-05 | Optical fiber splicing method |
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| Publication Number | Publication Date |
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| CN102354024A true CN102354024A (en) | 2012-02-15 |
| CN102354024B CN102354024B (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110185695 Active CN102354024B (en) | 2011-07-05 | 2011-07-05 | Optical fiber splicing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885128A (en) * | 2013-12-27 | 2014-06-25 | 广东省广播电视网络股份有限公司 | Tail fiber joint used for fiber-to-the-home and protective method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04360108A (en) * | 1991-06-06 | 1992-12-14 | Fujikura Ltd | Connecting method for optical fiber |
| US5570446A (en) * | 1994-06-16 | 1996-10-29 | Telefoanaktiebolaget Lm Ericsson | Alignment and control in splicing optical fibers |
| CN1409140A (en) * | 2001-09-25 | 2003-04-09 | 住友电气工业株式会社 | Method and device for heating welding parts of thermal optical fiber and optical fiber array |
| CN101183161A (en) * | 2007-12-07 | 2008-05-21 | 华南理工大学 | Welding joint method of glass optical fibre with different component |
-
2011
- 2011-07-05 CN CN 201110185695 patent/CN102354024B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04360108A (en) * | 1991-06-06 | 1992-12-14 | Fujikura Ltd | Connecting method for optical fiber |
| US5570446A (en) * | 1994-06-16 | 1996-10-29 | Telefoanaktiebolaget Lm Ericsson | Alignment and control in splicing optical fibers |
| CN1409140A (en) * | 2001-09-25 | 2003-04-09 | 住友电气工业株式会社 | Method and device for heating welding parts of thermal optical fiber and optical fiber array |
| CN101183161A (en) * | 2007-12-07 | 2008-05-21 | 华南理工大学 | Welding joint method of glass optical fibre with different component |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885128A (en) * | 2013-12-27 | 2014-06-25 | 广东省广播电视网络股份有限公司 | Tail fiber joint used for fiber-to-the-home and protective method thereof |
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| CN102354024B (en) | 2013-06-12 |
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Effective date of registration: 20190114 Address after: 519030 Room 105-24877, No. 6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province Patentee after: Hengqin Donghui Technology Co., Ltd. Address before: 510640 No. five, 381 mountain road, Guangzhou, Guangdong, Tianhe District Patentee before: South China University of Technology |
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