CN104193188A - Multi-metal-coating high-temperature-resistant corrosion-resistant optical fiber - Google Patents
Multi-metal-coating high-temperature-resistant corrosion-resistant optical fiber Download PDFInfo
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- CN104193188A CN104193188A CN201410414420.4A CN201410414420A CN104193188A CN 104193188 A CN104193188 A CN 104193188A CN 201410414420 A CN201410414420 A CN 201410414420A CN 104193188 A CN104193188 A CN 104193188A
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Abstract
The invention relates to a multi-metal-coating high-temperature-resistant corrosion-resistant optical fiber applicable to the fields of optical fiber communication, optical fiber sensing, optical fiber energy transfer and the like. The optical fiber is composed of a glass core layer, a glass cladding around the outer surface of the core layer, an inner-layer metal coating arranged on the outer surface of the cladding, and an outer-layer metal coating arranged on the outer surface of the inner-layer metal coating. The inner-layer metal coating and outer-layer metal coating can respectively be one metal coating with the same component, or two or more metal coatings with different components. The maximum operating temperature of the multi-metal-coating high-temperature-resistant corrosion-resistant optical fiber can be enhanced by 100-800 DEG C under the condition of not changing various optical properties and mechanical strength of the common metal coated optical fiber, and the chemical corrosion resistance of the optical fiber can be enhanced. The multi-metal-coating high-temperature-resistant corrosion-resistant optical fiber is worthy of popularization and application.
Description
Technical field
The present invention relates to opticfiber communication, Fibre Optical Sensor and optical fiber transmission energy technical field, refer more particularly to a kind of multiple layer metal coating corrosion-and high-temp-resistant optical fiber.
Background technology
Under hot environment in temperature during higher than 300 DEG C, conventional organic polymer coating optical fiber, as acrylate coatings optical fiber, polyimide coating optical fiber etc., can not meet practical application request.The maximum operating temperature with the traditional polymer coating optical fibre of acrylate, liquid crystal or polyimide coating is respectively 85 DEG C, 180 DEG C and 300 DEG C.In the time that envrionment temperature exceedes the maximum operating temperature of these optical fiber, these coated materials meeting serious agings, the physical strength of optical fiber also can weaken, and causes fibercuts when serious.Terms of settlement under these severe environment normally directly applies the object that layer of metal coating reaches high temperature resistant, corrosion-resistant and improves mechanical fiber optic intensity in the glass-clad of optical fiber.The details relevant to metal coated fiber are described to some extent in many patents before, these patents to metal coated fiber high temperature resistant, a large amount of research and improvement have all been done in the raising aspect of moisture-proof and physical strength, for example, be in the US4418984 title United States Patent (USP) that is " Multiply coated metallic clad fiber optical waveguide (multiple layer metal coating optical fibre) ", to have described in hot environment multiple layer metal coating optical fibre and have the example of high physical strength in the patent No. of Wysocki etc., be that United States Patent (USP) that US5953487 title is " Metal-coated IR-transmitting chalcogenide glass fibers (for the metallic coating chalcogenide glass fiber of infrared transmission) " has been described metal coated fiber and had high flexural strength in the patent No. of Sanghera etc., the example of the performances such as the visible ray of resistance to UV//humidity.
Traditional metallic coating generally adopts fusion coating method that metallic coating is directly coated on optical fiber glass-clad outside surface, be about to through prefabricated stick drawn wire optical fiber out by all foraminate high-temperature molten metal liquid pool of upper and lower two ends, optical fiber is when by metal reservoir lower end aperture, its surface has been adhered to layer of metal liquid, after cooling, will form layer of metal coating, but the melting point metal being coated on optical fiber while using fusion coating method can not be too high.At present, the metal coating layer material having applied on optical fiber comprises aluminium, copper, copper alloy, silver and golden etc.While using aluminium, copper and copper alloy as metal coating layer material, the maximum operating temperature of optical fiber can reach 400～450 DEG C.While using silver, gold as metal coating layer material, the maximum operating temperature of optical fiber can reach 700 DEG C.But in a lot of practical applications, when envrionment temperature is during higher than 700 DEG C, need to use optical fiber as sensor, energy-transmission optic fibre or optical communication network as needs in places such as diesel motor, turbine engine, nuclear power plant or steel melting furnaces time, above-mentioned metal coated fiber can not be applied due to its use temperature restriction, otherwise optical fiber will rupture, whole Fibre Optical Sensor, biography energy or communication system cannot normally be worked.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of multiple layer metal coating corrosion-and high-temp-resistant optical fiber, the deficiency that can not meet service requirements and exist under higher temperature to overcome existing plain metal coating optical fibre.
For solving the problems of the technologies described above, the present invention proposes a kind of multiple layer metal coating corrosion-and high-temp-resistant optical fiber, comprising:
Sandwich layer, is made up of the glass material that specific refractory power is higher, for light is transmitted in sandwich layer;
Covering, the glass material lower by specific refractory power forms, for making light carry out total reflection transmission in sandwich layer;
Inner layer metal coating, is coated on described covering outside surface along the longitudinal axis direction of described sandwich layer, for the protection of optical fiber not because of bending, stretch and reverse external force and rupture, and optical fiber can at high temperature be worked;
Outer layer metal coating, be coated on described inner layer metal coating outside surface along the longitudinal axis direction of described sandwich layer, there is oxidation or other chemical reaction to avoid inner layer metal coating and airborne oxygen or contact with moisture, improve the maximum operating temperature of optical fiber, also can improve other physics or the chemical property of optical fiber, as repaired micropore, waterproof infiltration and anti-chemical corrosion etc. simultaneously.
According to such scheme, the making material of described sandwich layer and covering includes but not limited to that silica glass, chalcogenide glass, fluorine are glass.Because total reflection principle, light transmits in the sandwich layer being coated by covering.The diameter of glass sandwich layer is more than 1 μ m, the thickness of glass-clad be 5 μ m and more than.
Described inner layer metal coating includes but not limited to metallic element or the alloys such as aluminium, copper, copper-nickel, silver, gold.Described inner layer metal coating can be the metallic coating of one deck and same component, or is multilayer and the different metallic coating of every layer component.The thickness of every layer be 0.5 μ m and more than.
Described inner layer metal coating can be coated on described covering outside surface through but not limited to methods such as fusion coating method, chemical vapour deposition plating method, vacuum evaporatation, vacuum sputtering coating method, vacuum ion plating embrane method, atomic layer deposition methods.
Described outer layer metal coated material is selected from has super dystectic metal or its alloy, described in there is super dystectic metal and include but not limited to gold, platinum, palladium, tungsten or rhenium.Described outer layer metal coating is the metallic coating of one deck and same component, or is multilayer and the different metallic coating of every layer component.The thickness of every layer be 50nm and more than.
Every one deck of described outer layer metal coating can be coated on described inner layer metal coating outside surface successively through but not limited to methods such as chemical vapour deposition plating method, vacuum evaporatation, vacuum sputtering coating method, vacuum ion plating embrane method, atomic layer deposition methods, and these preparation technologies implement under the working temperature far below metal self fusing point, so overcome the defect that fusion coating method must be implemented under the condition of melting of metal.
The high-temperature resistant optical fiber with multiple layer metal coating that the present invention proposes is compared with existing metal coated fiber, in the situation that not changing the various optical properties of existing metal coated fiber and physical strength, the maximum operating temperature of optical fiber can be improved to 100～800 DEG C, can strengthen the resistance to chemical attack ability of optical fiber simultaneously.
In the situation that improving optical fiber maximum operating temperature, can be excellent and there is super dystectic metal or its alloy as outermost metal coating but not single metallic coating is directly coated on glass-clad outside surface has reduced the requirement to washing technique while producing using platinum, palladium, tungsten, rhenium equistability, can reduce its coating thickness, improve material use efficiency, reduce production costs etc.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is further described in detail.
Fig. 1 is the cross sectional representation according to an embodiment with the corrosion-and high-temp-resistant optical fiber of multiple layer metal coating.
Embodiment
Optical fiber described here relates to multilayer (more than two-layer and two-layer) the metallic coating corrosion-and high-temp-resistant optical fiber for fields such as opticfiber communication, Fibre Optical Sensor and optical fiber transmission energy.Described multilayer (more than two-layer and two-layer) metallic coating corrosion-and high-temp-resistant optical fiber comprises glass core layer, be centered around the glass-clad of sandwich layer outside surface, be placed in the inner layer metal coating of covering outside surface, be placed in the outer layer metal coating of inner layer metal coating outside surface.Inner layer metal coating can be all metallic coating or the different metallic coating of multilayer (more than two-layer or two-layer) every layer component of one deck same component with outer layer metal coating.
The present invention is described in further detail below by way of embodiments and drawings.
Fig. 1 is the cross sectional representation according to an embodiment with the corrosion-and high-temp-resistant optical fiber of multiple layer metal coating.As shown in Figure 1, optical fiber 101 there is sandwich layer 102, be centered around sandwich layer 102 outside surfaces covering 103, be placed in the inner layer metal coating 104 of covering 103 outside surfaces and be coated on the outer layer metal coating 105 of inner layer metal coating 104 outside surfaces.
Shown in Fig. 1, sandwich layer 102 is positioned at optical fiber 101 center, and the diameter of sandwich layer 102 is more than 1 μ m.Covering 103 is coated on the outside surface of sandwich layer 102 along sandwich layer 102 longitudinal axis directions, the thickness in monolayer of covering 103 5 μ m and more than.The specific refractory power of sandwich layer 102 is greater than the specific refractory power of covering 103, makes light be limited in and in sandwich layer 102, carry out total reflection transmission by covering 103.The making material of sandwich layer 102 and covering 103 includes but not limited to that silica glass, chalcogenide glass, fluorine are glass etc.
Inner layer metal coating 104, along sandwich layer 102 longitudinal axis directions, is coated on the outside surface of covering 103.The making material of inner layer metal coating 104 includes but not limited to metallic element or the alloys such as aluminium, copper, copper-nickel, silver, gold.Inner layer metal coating 104 can be the metallic coating of one deck same component, also can be the different metallic coating of multilayer (more than two-layer or two-layer) every layer component, the minimum thickness of every layer be 0.5 μ m and more than.Inner layer metal coating 104 can be coated on covering 103 outside surfaces through but not limited to methods such as fusion coating method, chemical vapour deposition plating method, vacuum evaporatation, vacuum sputtering coating method, vacuum ion plating embrane method, atomic layer deposition methods.
Outer layer metal coating 105 is coated on the outside surface of inner layer metal coating 104 along sandwich layer 102 longitudinal axis directions.Outer layer metal coating 105 materials include but not limited to platinum, palladium, tungsten, rhenium equistability energy excellence and have super dystectic metal or its alloy.Outer layer metal coating can be the metallic coating of one deck same component, also can be the different metallic coating of multilayer (more than two-layer or two-layer) every layer component, the minimum thickness of every one deck be 50nm and more than.Outer layer metal coating 105 can be coated on inner layer metal coating 104 outside surfaces through but not limited to methods such as chemical vapour deposition plating method, vacuum evaporatation, vacuum sputtering coating method, vacuum ion plating embrane method, atomic layer deposition methods.
The effect of outer layer metal coating is mainly that isolation inner layer metal coating contacts with airborne oxygen or moisture etc.; avoid inner layer metal coating to weaken the protection to optical fiber because there are oxidation or other chemical reactions; maximum operating temperature and other physics or the chemical property of optical fiber are improved, as repaired micropore, waterproof infiltration and anti-chemical corrosion etc.Simultaneously, in the situation that improving optical fiber maximum operating temperature, using platinum, palladium, tungsten, rhenium equistability can be excellent and there is super dystectic metal or its alloy as outermost metal coating but not single metallic coating be directly coated on glass-clad outside surface reduced the requirement to washing technique while producing (such as, platinum, palladium, tungsten, rhenium etc. can reduce its coating thickness while having superelevation melting point metals as non-inner layer metal coating), can improve material use efficiency, reduce production costs etc.
The high-temperature resistant optical fiber with multiple layer metal coating that the present invention proposes is compared with existing metal coated fiber, in the situation that not changing the various optical properties of existing metal coated fiber and physical strength, the maximum operating temperature of optical fiber can be improved to 100～800 DEG C, can strengthen the resistance to chemical attack ability of optical fiber simultaneously.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (10)
1. multiple layer metal coating corrosion-and high-temp-resistant optical fiber, is characterized in that, comprising:
Sandwich layer, is made up of the glass material that specific refractory power is higher, for light is transmitted in sandwich layer;
Covering, the glass material lower by specific refractory power forms, for making light carry out total reflection transmission in sandwich layer;
Inner layer metal coating, is coated on described covering outside surface along the longitudinal axis direction of described sandwich layer, for the protection of optical fiber not because of bending, stretch and reverse external force and rupture, and optical fiber can at high temperature be worked;
Outer layer metal coating, is coated on described inner layer metal coating outside surface along the longitudinal axis direction of described sandwich layer.
2. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 1, is characterized in that, the making material of described sandwich layer or covering includes but not limited to that silica glass, chalcogenide glass or fluorine are glass.
3. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 2, is characterized in that, described sandwich layer diameter is more than 1 μ m, the thickness of described covering be 5 μ m and more than.
4. according to the multiple layer metal coating corrosion-and high-temp-resistant optical fiber one of claims 1 to 3 Suo Shu, it is characterized in that, described inner layer metal coated material includes but not limited to aluminium, copper, copper-nickel, silver or golden metallic element or alloy.
5. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 4, it is characterized in that, described inner layer metal coating is the metallic coating of one deck and same component, or be multilayer and the different metallic coating of each layer component, the thickness in monolayer of described inner layer metal coating be 0.5 μ m and more than.
6. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 4, it is characterized in that, described inner layer metal coating is coated on described covering outside surface through but not limited to fusion coating method, chemical vapour deposition plating method, vacuum evaporatation, vacuum sputtering coating method, vacuum ion plating embrane method or atomic layer deposition method.
7. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 1, it is characterized in that, described outer layer metal coated material is selected from has super dystectic metal or its alloy, described in there is super dystectic metal and include but not limited to gold, platinum, palladium, tungsten or rhenium.
8. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 7, is characterized in that, described outer layer metal coating is the metallic coating of one deck and same component, or is multilayer and the different metallic coating of each layer component.
9. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 8, it is characterized in that, described outer layer metal coating, is coated on described inner layer metal coating outside surface through but not limited to methods such as chemical vapour deposition plating method, vacuum evaporatation, vacuum sputtering coating method, vacuum ion plating embrane method or atomic layer deposition methods.
10. multiple layer metal coating corrosion-and high-temp-resistant optical fiber according to claim 8, is characterized in that, the thickness in monolayer of described outer layer metal coating be 50nm and more than.
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| CN201410414420.4A CN104193188A (en) | 2014-08-21 | 2014-08-21 | Multi-metal-coating high-temperature-resistant corrosion-resistant optical fiber |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026110A1 (en) * | 2014-08-21 | 2016-02-25 | 武汉北方光电科技有限公司 | High-temperature-resistant corrosion-resistant optical fiber with multiple metal coatings |
| CN108363140A (en) * | 2018-04-02 | 2018-08-03 | 武汉虹拓新技术有限责任公司 | A kind of heat safe amplifying fiber |
| CN108929049A (en) * | 2018-08-21 | 2018-12-04 | 徐培培 | A method of Basalt fiber high-temperature resisting performance is promoted by surface modification |
| CN110482873A (en) * | 2019-09-19 | 2019-11-22 | 金陵科技学院 | Application of the metal film in the softening temperature for improving substrate of glass |
| CN110554455A (en) * | 2019-08-21 | 2019-12-10 | 北京大学 | Method for rapidly preparing transition metal chalcogenide composite optical fiber material |
| CN111548004A (en) * | 2020-05-15 | 2020-08-18 | 中天超容科技有限公司 | Optical fiber production equipment and preparation method and optical fiber |
| CN112209715A (en) * | 2020-10-26 | 2021-01-12 | 南通大学 | YAG ceramic fiber and preparation method thereof |
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| CN1425935A (en) * | 2002-10-23 | 2003-06-25 | 东北大学 | Metal base composite optical fibre and its producing method |
| CN102109636A (en) * | 2011-02-25 | 2011-06-29 | 中国电子科技集团公司第八研究所 | High temperature resistance and radiation resistance optical fiber and processing technology thereof |
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2014
- 2014-08-21 CN CN201410414420.4A patent/CN104193188A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1425935A (en) * | 2002-10-23 | 2003-06-25 | 东北大学 | Metal base composite optical fibre and its producing method |
| CN102109636A (en) * | 2011-02-25 | 2011-06-29 | 中国电子科技集团公司第八研究所 | High temperature resistance and radiation resistance optical fiber and processing technology thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016026110A1 (en) * | 2014-08-21 | 2016-02-25 | 武汉北方光电科技有限公司 | High-temperature-resistant corrosion-resistant optical fiber with multiple metal coatings |
| CN108363140A (en) * | 2018-04-02 | 2018-08-03 | 武汉虹拓新技术有限责任公司 | A kind of heat safe amplifying fiber |
| CN108929049A (en) * | 2018-08-21 | 2018-12-04 | 徐培培 | A method of Basalt fiber high-temperature resisting performance is promoted by surface modification |
| CN110554455A (en) * | 2019-08-21 | 2019-12-10 | 北京大学 | Method for rapidly preparing transition metal chalcogenide composite optical fiber material |
| CN110554455B (en) * | 2019-08-21 | 2020-06-09 | 北京大学 | Method for rapidly preparing transition metal chalcogenide composite optical fiber material |
| CN110482873A (en) * | 2019-09-19 | 2019-11-22 | 金陵科技学院 | Application of the metal film in the softening temperature for improving substrate of glass |
| CN111548004A (en) * | 2020-05-15 | 2020-08-18 | 中天超容科技有限公司 | Optical fiber production equipment and preparation method and optical fiber |
| CN112209715A (en) * | 2020-10-26 | 2021-01-12 | 南通大学 | YAG ceramic fiber and preparation method thereof |
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Application publication date: 20141210 |