CN113589456B - Information and energy co-transmission micro-structure optical fiber - Google Patents
Information and energy co-transmission micro-structure optical fiber Download PDFInfo
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- CN113589456B CN113589456B CN202110698935.1A CN202110698935A CN113589456B CN 113589456 B CN113589456 B CN 113589456B CN 202110698935 A CN202110698935 A CN 202110698935A CN 113589456 B CN113589456 B CN 113589456B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/441—Optical cables built up from sub-bundles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02042—Multicore optical fibres
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02295—Microstructured optical fibre
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02295—Microstructured optical fibre
- G02B6/023—Microstructured optical fibre having different index layers arranged around the core for guiding light by reflection, i.e. 1D crystal, e.g. omniguide
- G02B6/02304—Core having lower refractive index than cladding, e.g. air filled, hollow core
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
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Abstract
The invention provides a signal energy co-transmission micro-structure optical fiber, and belongs to the technical field of micro-structure optical fibers. The micro-structure optical fiber comprises an energy transmission structure unit, a signal transmission unit and an optical fiber supporting cladding layer, wherein the signal transmission units are distributed in a plurality along the circumferential direction of the energy transmission structure unit, each signal transmission unit comprises a hollow anti-resonance optical fiber unit, and the signal transmission unit and the energy transmission structure unit are located in the optical fiber supporting cladding layer. The micro-structure optical fiber can greatly reduce the interaction between the high-energy laser of the fiber core of the hybrid structure optical fiber and the signals in the nested antiresonant hollow fiber of the outer cladding, thereby reducing the interaction between the signals and the energy and also enabling the energy to be transmitted for a longer distance.
Description
Technical Field
The invention belongs to the technical field of micro-structure optical fibers, and relates to a signal energy co-transmission micro-structure optical fiber.
Background
The laser processing fields such as laser cleaning, laser welding, laser etching and the like not only relate to high-power laser transmission, but also relate to measurement and feedback of various parameters such as laser processing environment, processing objects and the like, such as humidity, temperature, the dimensions of the processing objects and the like, how to accurately and quickly acquire the processing objects and the environmental parameters is an urgent problem to be solved in the laser processing field, and an optical fiber for co-transmission of information and energy (joint transmission of signals and energy) is a key for solving the problems. Meanwhile, the Chinese amplitude-change device has wide amplitude, large sea area and numerous islands, and the islands are dispersed, so that each island faces the problems of difficult communication and large energy demand, the direct conversion of long-distance energy into electric energy required by communication becomes the key for solving the problems, and in addition, the communication of mines and mines faces the same problems, so that the communication is difficult, and the energy required by the communication is more difficult to obtain.
At present, the signal energy co-transmission optical fiber often adopts a fiber multi-core mode, and the defect of the signal energy co-transmission optical fiber is that the mutual influence exists between energy and signals, and the mutual crosstalk places bring great difficulty to signal decoding, and meanwhile, electromagnetic field effects generated by high-power laser transmission also bring interference to signals, so that signal transmission is not facilitated.
Disclosure of Invention
The invention aims at the problems existing in the prior art, and provides a signal energy co-transmission micro-structure optical fiber, which aims at solving the technical problems that: how to reduce the interaction between signal and energy.
The aim of the invention can be achieved by the following technical scheme:
the signal energy co-transmission micro-structure optical fiber is characterized by comprising an energy transmission structure unit, a signal transmission unit and an optical fiber supporting cladding, wherein the signal transmission units are distributed in a plurality along the circumferential direction of the energy transmission structure unit, each signal transmission unit comprises a hollow anti-resonance optical fiber unit, and the signal transmission unit and the energy transmission structure unit are positioned in the optical fiber supporting cladding.
The working principle is as follows: the energy transmission structure unit of the micro-structure optical fiber is a fiber core part, a plurality of hollow anti-resonance fiber units of an outer cladding layer form a signal transmission unit, the middle fiber core part (energy transmission structure unit) can carry out high-power and high-energy laser transmission, the nested anti-resonance hollow fiber distributed around the fiber core part can realize the transmission of a plurality of communication signals, because of the light guide characteristic of the nested anti-resonance hollow fiber, the fiber core energy is basically limited in an air area in the energy transmission structure unit, the contact with an outer layer made of quartz glass is very small, and thus the interaction between the high-energy laser of the fiber core of the hybrid structure optical fiber and the signals in the nested anti-resonance hollow fiber of the outer cladding layer can be greatly reduced, the mutual influence between the signals and the energy is reduced, and the energy can be transmitted for a longer distance.
In the foregoing signal-energy co-transmission microstructured optical fiber, the energy-transmission structural unit includes an energy-transmission fiber core, an energy-transmission first cladding layer and an energy-transmission second cladding layer, the energy-transmission first cladding layer is located in the energy-transmission second cladding layer, and the energy-transmission fiber core is located in the energy-transmission first cladding layer.
In the signal energy co-transmission microstructure optical fiber, the energy transmission fiber core is made of a pure quartz material, the energy transmission first cladding is made of a fluorine-doped quartz material, and the energy transmission second cladding is made of a pure quartz material.
The energy-transfer fiber core is made of pure quartz, the diameter of the energy-transfer fiber core is between 50 and 2000 microns, the numerical aperture of the energy-transfer fiber core is between 0.1 and 0.22, the energy-transfer first cladding is a fluorine-doped quartz layer, the energy-transfer first cladding is a deep fluorine-doped region, and the energy-transfer second cladding is a pure quartz layer.
In the signal energy co-transmission microstructure optical fiber, the hollow anti-resonance optical fiber unit comprises an outer cladding layer, wherein the outer cladding layer is internally provided with a signal transmission fiber core and a plurality of first hollow pipes, and second hollow pipes are respectively arranged in the first hollow pipes.
In the signal energy co-transmission microstructure optical fiber, the outer cladding, the first hollow tube and the second hollow tube are made of quartz materials.
The area of the signal transmission fiber core is an air filling area, the diameter of the air filling area is between 20 micrometers and 60 micrometers, the area in the first hollow tube and the area in the second hollow tube are air filling areas, the outer cladding layer, the first hollow tube and the second hollow tube are quartz layers, and the wall thickness of the first hollow tube and the wall thickness of the second hollow tube are between 200nm and 1000 nm.
In the signal energy co-transmission microstructure optical fiber, the outer cladding is circular, and the hollow anti-resonance optical fiber units are uniformly distributed along the circumferential direction of the outer cladding.
In the signal energy co-transmission microstructure optical fiber, the hollow anti-resonance optical fiber units are uniformly distributed along the circumferential direction of the energy transmission structure unit.
The hollow anti-resonance optical fiber units are uniformly distributed along the circumferential direction of the energy transmission structure unit, so that signals can be more uniformly transmitted, and the effect of remote transmission is further improved.
In the signal energy co-transmission microstructure optical fiber, the optical fiber supporting cladding is a quartz layer.
Compared with the prior art, the invention has the following advantages:
the micro-structure optical fiber can greatly reduce the interaction between the high-energy laser of the fiber core of the hybrid structure optical fiber and the signals in the nested antiresonant hollow fiber of the outer cladding, thereby reducing the interaction between the signals and the energy and also enabling the energy to be transmitted for a longer distance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present microstructured optical fiber;
fig. 2 is an enlarged view of a microstructured optical fiber.
In the figure, 1 an energy transmission structural unit; 2 a signal transmission unit; 3, an optical fiber supporting cladding; 4, energy transmission fiber cores; 5 energy-transmitting first cladding; 6, energy transmission second cladding; 7, outer cladding; 8, a signal transmission fiber core; 9, a hollow anti-resonance optical fiber unit; 10 a first hollow tube; 11 a second hollow tube.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 2, the microstructure optical fiber comprises an energy transmission structural unit 1, a plurality of signal transmission units 2 and an optical fiber supporting cladding 3, wherein the signal transmission units 2 are distributed along the circumferential direction of the energy transmission structural unit 1, the signal transmission units 2 comprise hollow anti-resonance optical fiber units 9, and the signal transmission units 2 and the energy transmission structural units 1 are positioned in the optical fiber supporting cladding 3.
The energy transmission structure unit 1 of the micro-structure optical fiber is a fiber core part, a plurality of hollow anti-resonance optical fiber units 9 of an outer cladding 7 form a signal transmission unit 2, the middle fiber core part (the energy transmission structure unit 1) can transmit high-power high-energy laser, the nested anti-resonance hollow optical fiber distributed around the fiber core part can transmit a plurality of communication signals, because of the light guide characteristic of the nested anti-resonance hollow optical fiber, the fiber core energy is basically limited in an air area in the energy transmission structure unit 1, the contact with an outer layer made of quartz glass is very small, so that the interaction between the high-energy laser of the fiber core of the hybrid structure optical fiber and the signals in the nested anti-resonance hollow optical fiber of the outer cladding 7 can be greatly reduced, the interaction between the signals and the energy is reduced, and the energy can be transmitted for a longer distance.
As shown in fig. 2, in this embodiment, the energy-transmitting structural unit 1 includes an energy-transmitting fiber core 4, an energy-transmitting first cladding 5, and an energy-transmitting second cladding 6, where the energy-transmitting first cladding 5 is located in the energy-transmitting second cladding 6, and the energy-transmitting fiber core 4 is located in the energy-transmitting first cladding 5.
As an example, the energy-conducting core 4 is made of pure quartz material, the energy-conducting first cladding 5 is made of fluorine-doped quartz material, and the energy-conducting second cladding 6 is made of pure quartz material.
The energy-transfer fiber core 4 is made of pure quartz, the diameter of the energy-transfer fiber core 4 is between 50 and 2000 microns, the numerical aperture of the energy-transfer fiber core is between 0.1 and 0.22, the energy-transfer first cladding layer 5 is a fluorine-doped quartz layer, the energy-transfer second cladding layer 6 is a pure quartz layer.
As shown in fig. 2, in this embodiment, the hollow anti-resonance optical fiber unit 9 includes an outer cladding 7, and the outer cladding 7 has a signal transmission fiber core 8 and a plurality of first hollow tubes 10, and the first hollow tubes 10 are respectively provided with second hollow tubes 11.
As an example, the outer cladding 7, the first hollow tube 10 and the second hollow tube 11 are made of quartz material.
The area of the signal transmission fiber core 8 is an air filling area, the diameter of the air filling area is between 20 micrometers and 60 micrometers, the area in the first hollow tube 10 and the area in the second hollow tube 11 are air filling areas, the outer cladding 7, the first hollow tube 10 and the second hollow tube 11 are quartz layers, and the wall thickness of the first hollow tube 10 and the second hollow tube 11 is between 200nm and 1000 nm.
As shown in fig. 2, in the present embodiment, the outer cladding 7 is circular, and the hollow anti-resonance optical fiber units 9 are uniformly distributed along the circumferential direction of the outer cladding 7.
As shown in fig. 1 or 2, in the present embodiment, the hollow-core antiresonant optical fiber units 9 are uniformly distributed along the circumferential direction of the energy transmission structural unit 1.
The hollow anti-resonance optical fiber units 9 are uniformly distributed along the circumferential direction of the energy transmission structural unit 1, so that signals can be more uniformly transmitted, and the effect of remote transmission is further improved.
As an example, the optical fiber support cladding 3 is a quartz layer.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The signal energy co-transmission micro-structure optical fiber is characterized by comprising an energy transmission structure unit (1), signal transmission units (2) and an optical fiber supporting cladding (3), wherein the signal transmission units (2) are distributed in a plurality of circumferential directions along the energy transmission structure unit (1), the signal transmission units (2) comprise hollow anti-resonance optical fiber units (9), and the signal transmission units (2) and the energy transmission structure unit (1) are positioned in the optical fiber supporting cladding (3);
the energy transmission structure unit (1) comprises an energy transmission fiber core (4), an energy transmission first cladding (5) and an energy transmission second cladding (6), wherein the energy transmission first cladding (5) is positioned in the energy transmission second cladding (6), and the energy transmission fiber core (4) is positioned in the energy transmission first cladding (5);
the hollow anti-resonance optical fiber unit (9) comprises an outer cladding layer (7), wherein a signal transmission fiber core (8) and a plurality of first hollow pipes (10) are arranged in the outer cladding layer (7), and second hollow pipes (11) are respectively arranged in the first hollow pipes (10).
2. A signal energy co-transmission microstructured optical fiber according to claim 1, characterized in that the energy transmission fiber core (4) is made of pure quartz material, the energy transmission first cladding (5) is made of fluorine doped quartz material, and the energy transmission second cladding (6) is made of pure quartz material.
3. A signal energy co-propagating micro-structured fiber according to claim 1, wherein said outer cladding (7), first hollow tube (10) and second hollow tube (11) are made of quartz material.
4. A signal energy co-transmission microstructured optical fiber according to claim 1, characterized in that the outer cladding (7) is circular, and the hollow anti-resonance optical fiber units (9) are uniformly distributed along the circumferential direction of the outer cladding (7).
5. A signal energy co-transmission microstructured optical fiber according to claim 1, characterized in that the hollow anti-resonance optical fiber units (9) are uniformly distributed along the circumferential direction of the energy transmission structural unit (1).
6. A signal energy co-propagating micro-structure fiber according to any of the claims 1-5, wherein said fiber supporting cladding (3) is a quartz layer.
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| CN202110698935.1A CN113589456B (en) | 2021-06-23 | 2021-06-23 | Information and energy co-transmission micro-structure optical fiber |
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| CN202110698935.1A CN113589456B (en) | 2021-06-23 | 2021-06-23 | Information and energy co-transmission micro-structure optical fiber |
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| CN114486766B (en) * | 2022-02-09 | 2022-12-06 | 深圳大学 | Optical fiber humidity sensor with temperature calibration function |
| CN114910995B (en) * | 2022-04-27 | 2023-11-17 | 东北石油大学 | Antiresonant optical fiber supporting long-distance stable communication of multiple orbital angular momentum modes |
| CN115072983B (en) * | 2022-06-10 | 2024-01-16 | 武汉长盈通光电技术股份有限公司 | Preparation method of hollow anti-resonance optical fiber intermediate preform |
| CN116429080B (en) * | 2023-06-13 | 2023-08-18 | 中国船舶集团有限公司第七〇七研究所 | Gyroscope based on high-stability hollow microstructure optical fiber ring |
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| JP4254716B2 (en) * | 2005-01-27 | 2009-04-15 | 日立電線株式会社 | Optical fiber for laser energy transmission, laser energy transmission method and laser energy transmission device |
| GB2526879A (en) * | 2014-06-06 | 2015-12-09 | Univ Southampton | Hollow-core optical fibers |
| EP3199991A1 (en) * | 2016-01-27 | 2017-08-02 | Danmarks Tekniske Universitet | Optical fiber |
| CN105807363B (en) * | 2016-05-13 | 2019-01-29 | 北京工业大学 | A kind of hollow antiresonance optical fiber |
| CN106291809B (en) * | 2016-09-20 | 2019-04-16 | 长飞光纤光缆股份有限公司 | A kind of big core diameter quartz energy-transmission optic fibre |
| CN107797175A (en) * | 2017-10-13 | 2018-03-13 | 北京工业大学 | A kind of hollow antiresonance optical fiber of multi-resonant layer |
| CN108873212A (en) * | 2018-08-31 | 2018-11-23 | 铜陵市铜都特种线缆有限公司 | A kind of Multi-core branched optical cable |
| CN111323869A (en) * | 2020-03-05 | 2020-06-23 | 华南师范大学 | Microstructure optical fiber for transmitting optical information and optical energy together |
| CN111458787B (en) * | 2020-04-24 | 2021-07-30 | 燕山大学 | Single-mode single-polarization hollow negative curvature optical fiber |
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