CN103454717A - Sunlight optical fiber light guide coupler - Google Patents
Sunlight optical fiber light guide coupler Download PDFInfo
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- CN103454717A CN103454717A CN2013103962615A CN201310396261A CN103454717A CN 103454717 A CN103454717 A CN 103454717A CN 2013103962615 A CN2013103962615 A CN 2013103962615A CN 201310396261 A CN201310396261 A CN 201310396261A CN 103454717 A CN103454717 A CN 103454717A
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- optical fiber
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- fiber light
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Abstract
The invention relates to a sunlight optical fiber light guide coupler. The sunlight optical fiber light guide coupler comprises a leading-in section and a transmission section, the leading-in section is of a circular truncated cone shape, the large end of a circular truncated cone is a light inlet end, the small end of the circular truncated cone is a light outlet end, the leading-in section is formed by doped quartz glass, the refractive index n1 is 1.2-1.4, the transmission section is cylindrical, one end of the transmission section is coupled with the small end of the circular truncated cone of the leading-in section, the transmission section is formed by a doped quartz glass base body, and the refraction index n2 of the doped quartz glass base body is 1.45-1.52. The sunlight optical fiber light guide coupler has the advantages that the coupler is installed between sunlight and light guide optical fibers, converged sunlight can be efficiently coupled to the light guide optical fibers in a low loss mode, and then sunlight can be collected and used for illumination; the doped quartz glass, specific shapes and coating layers are adopted, and the coupler is high in coupling efficiency, stable in temperature performance, long in service life, good in high-temperature resistance and aging resistance, and especially suitable for being coupled with the quartz glass and the light guide optical fibers; the coupler is simple in structure and easy to machine and manufacture.
Description
Technical field
The present invention relates to a kind of daylight optical fiber light-guiding coupling mechanism, specific design is a kind of couples light to the coupled apparatus that silica fibre carries out flexible transmission by converging to gather day, belongs to solar light collection illumination transmission technique field.
Background technology
The sunshine this day is the inexhaustible huge lamp of nature only, is also a kind of green energy resource, and the mankind also rest on the comparatively initial stage to the utilization of solar energy up to now.Sunshine is gathered, utilizes and be transported to some effectively and both needed illumination and to safety requirements in the buildings as weapons and ammunitions storehouse, oil depot, mine, gas house and some other inflammable and explosive place and directly daylighting of very strict place, solve the lighting problem in above-mentioned place, significant.And the coupling efficiency that how to improve daylight is also the important topic faced at present.Be called 95107312.5 of Chinese patents in " sunlight collecting apparatus and control the sunlight collecting control device of this sunlight collecting apparatus " and relate to optics, computing machine, sensor and other correlation techniques, but aspect the coupling of converging light and silica fibre not concrete structure describe.Chinese patent 201110258872.4 " a kind of light splitting type sunlight conveyor " is inner have been described sunshine is carried out after lens converge, focusing on the plastic optical fiber end face, uses the optical interface device to reduce the temperature that focuses on end face, thereby prevents the plastic optical fiber damage.The raising but the high temperature resistant ageing resistance of plastic optical fiber is still needed.
Light for the visible light wave range scope is transmitted, and silica fibre has the advantage of intrinsic: the good physics and chemistry stability of quartzy material, and make the long-term reliability of high power sunshine in transmission be guaranteed, thus the serviceable life that has strengthened system.But sunshine is through after lens devices converges, and its beam quality has larger gap with general laser, so make sunshine through lens focus be coupled into silica fibre larger technical difficulty is arranged.Once sunshine is not coupled into silica fibre, will produces a large amount of heats at end face and the coat of optical fiber, thereby affect the performance of coupling efficiency and the Coupling point of system.Therefore improve the coupling efficiency that converges sunshine and silica fibre most important.
Summary of the invention
Technical matters to be solved by this invention is that the deficiency existed for above-mentioned prior art provides a kind of coupling efficiency high, and temperature performance is stable, the daylight optical fiber light-guiding coupling mechanism of long service life.
The technical scheme that the problem that the present invention is the above-mentioned proposition of solution adopts is: include introduction segment and span line, described introduction segment is truncated cone-shaped, the large end of round platform is light inlet, the round platform small end is the bright dipping end, and described introduction segment is comprised of doped silica glass, and refractive index n 1 is 1.2 ~ 1.4, described span line is cylindrical, the round platform small end of one end and introduction segment is coupled, and span line is by the doped silica glass matrix composition, and the refractive index n 2 of doped silica glass matrix is 1.45 ~ 1.52.
Press such scheme, at the outer peripheral face of span line doped silica glass matrix, scribble the coat that refractive index is lower, the refractive index n 3 of coat is 1.3-1.44, with the doped silica glass matrix, forms the total reflection structure.
Press such scheme, described introduction segment light inlet round platform outside diameter D1 is 2mm ~ 4mm, and bright dipping end round platform end diameter D2 is 1mm ± 0.5mm, and introduction segment axial length L 1 is 5mm ~ 10mm.
Press such scheme, described span line diameter is identical with introduction segment bright dipping end round platform end diameter D2, and span line axial length L 2 is 8mm ~ 20mm.
Press such scheme, described introduction segment is comprised of fluoro-alloyed quartz glass or boron-doping quartz glass.
Press such scheme, described span line forms by mixing germanite English glass or mixing the phosphorus quartz glass.
Press such scheme, described coat is resin coating layer or Silicone Rubber Coated layer.
Press such scheme, described introduction segment is by round platform small end end face and span line one end end face welding coupling.
Introduction segment front end and plus lens phase configuration when the present invention uses, end and the light-conductive optic fibre of span line are coupled, its coupling leaded light process is: after the sunshine process plus lens of wavelength coverage 400-700nm etc., the sunshine of parallel emission is converged mutually, converge spot diameter and be about 2-4mm, converge hot spot and be radiated at device and converge on face, at first import the introduction segment of truncated cone-shaped; The sunshine converged is transferred to span line in the introduction segment total reflection, and in the total reflection of introduction segment transmission, the refringence by introduction segment and air realizes the sunshine converged, and span line is the refringence formation total reflection by the coat surperficial with it; The sunshine converged, at the end outgoing coupling mechanism of span line, incides the quartzy sandwich layer of light-conductive optic fibre, and the refringence by the quartzy sandwich layer of light-conductive optic fibre and its coating, realize the total reflection low-loss transmission.Final sunshine penetrates from the other end of light-conductive optic fibre, completes collection and the illumination of sunshine.
Beneficial effect of the present invention is: 1, install between sunshine and light-conductive optic fibre, the sunshine converged can be coupled to light-conductive optic fibre at efficiently low damage, realize collection and the illumination of sunshine; 2, adopt doped silica glass and specific shape and coat, possess that temperature performance is stable, long service life, resistance to elevated temperatures and the good characteristics of ageing resistance, be particularly suitable for being coupled with the quartz glass light-conductive optic fibre; 3, simple in structure, be easy to processing and fabricating.
The accompanying drawing explanation
The positive view that Fig. 1 is one embodiment of the invention.
Fig. 2 is use view of the present invention.
Embodiment
Further specifically describe the present invention below by embodiment.
Include introduction segment 1 and span line 2, described introduction segment is truncated cone-shaped, the large end of round platform is light inlet, the round platform small end is the bright dipping end, described introduction segment is comprised of fluoro-alloyed quartz glass, and refractive index n 1 is 1.3, and described introduction segment light inlet round platform outside diameter D1 is 4mm, bright dipping end round platform end diameter D2 is 1mm, and introduction segment axial length L 1 is 6mm.Described span line is cylindrical, the round platform small end welding coupling of one end and introduction segment, span line forms by mixing germanite English glass basis, the refractive index n 2 of mixing germanite English glass basis is 1.46, described span line diameter is identical with introduction segment bright dipping end round platform end diameter D2, and span line axial length L 2 is 10mm; Outer peripheral face at the span line quartz glass substrate scribbles the coat 3 that refractive index is lower, described coat is the Silicone Rubber Coated layer, the refractive index n 3 of coat is 1.4, coat diameter D3 is D2+0.5mm, the monolateral thickness that is coat is 0.25mm, with quartz glass substrate, forms the total reflection structure.
In the present embodiment, described sunshine plus lens 4 diameters are 100mm, incide the light inlet surface of coupling mechanism introduction segment 1 through the sunshine converged, to be imported and transfer to by low-loss span line 2 through introduction segment, the sunshine that converges through the transmission of coupled apparatus span line outgoing, to transfer in light-conductive optic fibre quartz substrate 5, the quartzy sandwich layer outside surface of light-conductive optic fibre scribbles resin bed coat 6, thereby realizes whole coupled transfer process.Span line doped silica glass matrix and sunshine light-conductive optic fibre quartz substrate fusion weld, also can adopt Space Coupling, during the usage space coupling, need add index-matching oil or cream, reduces sun scattering of light, improves coupling efficiency; Make almost harmless importing of sunshine, reduce coupling loss.Thereby realize that the sunshine converged is delivered to the sunshine light-conductive optic fibre to be transmitted.
Claims (8)
1. a daylight optical fiber light-guiding coupling mechanism, it is characterized in that including introduction segment and span line, described introduction segment is truncated cone-shaped, and the large end of round platform is light inlet, and the round platform small end is the bright dipping end, described introduction segment is comprised of doped silica glass, refractive index n 1 is 1.2 ~ 1.4, and described span line is cylindrical, and the round platform small end of one end and introduction segment is coupled, span line is by the doped silica glass matrix composition, and the refractive index n 2 of doped silica glass matrix is 1.45 ~ 1.52.
2. by daylight optical fiber light-guiding coupling mechanism claimed in claim 1, it is characterized in that scribbling at the outer peripheral face of span line doped silica glass matrix the coat that refractive index is lower, the refractive index n 3 of coat is 1.3-1.44, with the doped silica glass matrix, forms the total reflection structure.
3. by the described daylight optical fiber light-guiding of claim 1 or 2 coupling mechanism, it is characterized in that described introduction segment light inlet round platform outside diameter D1 is 2mm ~ 4mm, bright dipping end round platform end diameter D2 is 1mm ± 0.5mm, and introduction segment axial length L 1 is 5mm ~ 10mm.
4. by the described daylight optical fiber light-guiding of claim 1 or 2 coupling mechanism, it is characterized in that described span line diameter is identical with introduction segment bright dipping end round platform end diameter D2, span line axial length L 2 is 8mm ~ 20mm.
5. by the described daylight optical fiber light-guiding of claim 1 or 2 coupling mechanism, it is characterized in that described introduction segment is comprised of fluoro-alloyed quartz glass or boron-doping quartz glass.
6. by the described daylight optical fiber light-guiding of claim 1 or 2 coupling mechanism, it is characterized in that described span line forms by mixing germanite English glass or mixing the phosphorus quartz glass.
7. by daylight optical fiber light-guiding coupling mechanism claimed in claim 2, it is characterized in that described coat is resin coating layer or Silicone Rubber Coated layer.
8. by the described daylight optical fiber light-guiding of claim 1 or 2 coupling mechanism, it is characterized in that described introduction segment is by round platform small end end face and span line one end end face welding coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396261.5A CN103454717B (en) | 2013-09-04 | 2013-09-04 | Sunlight optical fiber light guide coupler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310396261.5A CN103454717B (en) | 2013-09-04 | 2013-09-04 | Sunlight optical fiber light guide coupler |
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| CN103454717A true CN103454717A (en) | 2013-12-18 |
| CN103454717B CN103454717B (en) | 2015-07-22 |
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| CN201310396261.5A Active CN103454717B (en) | 2013-09-04 | 2013-09-04 | Sunlight optical fiber light guide coupler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792616A (en) * | 2014-02-28 | 2014-05-14 | 陕西师范大学 | Laser transmission hyperbolic condensation bar |
| CN107515472A (en) * | 2017-09-30 | 2017-12-26 | 四川思创优光科技有限公司 | Novel multimode pumping optical fiber combiner and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10133020A (en) * | 1996-10-30 | 1998-05-22 | Hiroshi Akitani | Appliance for condensing and converging light |
| CN102313932A (en) * | 2011-09-02 | 2012-01-11 | 陕西科技大学 | Solar-energy light-gathering optical fiber interface device |
| CN102508335A (en) * | 2011-11-11 | 2012-06-20 | 烽火通信科技股份有限公司 | Optical taper type high-power coupler and manufacturing method thereof |
-
2013
- 2013-09-04 CN CN201310396261.5A patent/CN103454717B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10133020A (en) * | 1996-10-30 | 1998-05-22 | Hiroshi Akitani | Appliance for condensing and converging light |
| CN102313932A (en) * | 2011-09-02 | 2012-01-11 | 陕西科技大学 | Solar-energy light-gathering optical fiber interface device |
| CN102508335A (en) * | 2011-11-11 | 2012-06-20 | 烽火通信科技股份有限公司 | Optical taper type high-power coupler and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792616A (en) * | 2014-02-28 | 2014-05-14 | 陕西师范大学 | Laser transmission hyperbolic condensation bar |
| CN107515472A (en) * | 2017-09-30 | 2017-12-26 | 四川思创优光科技有限公司 | Novel multimode pumping optical fiber combiner and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| CN103454717B (en) | 2015-07-22 |
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Address after: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Applicant after: Yangtze Optical Fibre and Cable Co., Ltd Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Applicant before: Changfei Fibre-Optical & Optical Cable Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: CHANGFEI FIBRE-OPTICAL + OPTICAL CABLE CO., LTD. TO: YANGTZE OPTICAL FIBRE AND CABLE CO., LTD |
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Effective date of registration: 20200117 Address after: No. 15, Keji East Road, hi tech Zone, Shantou City, Guangdong Province Patentee after: Shantou Hi-Tech Zone Austrian Star Communications Equipment Co., Ltd. Address before: 430073 Hubei city of Wuhan province Wuchang two Guanshan Road No. four Patentee before: Yangtze Optical Fibre and Cable Co., Ltd |
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