CN105676345B - A kind of glass-clad flash fiber and preparation method thereof - Google Patents
A kind of glass-clad flash fiber and preparation method thereof Download PDFInfo
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- CN105676345B CN105676345B CN201610210144.9A CN201610210144A CN105676345B CN 105676345 B CN105676345 B CN 105676345B CN 201610210144 A CN201610210144 A CN 201610210144A CN 105676345 B CN105676345 B CN 105676345B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
- C03C13/046—Multicomponent glass compositions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
A kind of glass-clad flash fiber and preparation method thereof, belongs to the preparation and application of novel flash fiber, is related to the preparation and application field of scintillation material.The present invention prepares flash fiber surrounding layer and uses low content Si glass material, and Si atom is effectively reduced in pulling process and penetrates into fiber core, while can satisfy the drawing of tens microns of small size optical fiber.The preparation method of flash fiber of the invention, including prefabricated rods, fibre-optical drawing, heat treatment step.Flash fiber of the invention has high optical property, fast decaying, high density, low in cost, can be applied to the fields such as modern nuclear detection and medicine aerial image equipment.
Description
Technical field
The invention belongs to novel flash fiber, especially a kind of glass-clad flash fiber and preparation method thereof.
Background technique
Scintillation material be it is a kind of absorption high energy particle after issue visible light, black light optical function material, in recent years
It has been obtained extensively in fields such as high-energy physics, nuclear physics, astrophysics, geophysics, medical imaging, industrial flaw detection and safety detections
General application.Scintillation material is concerned as optical sensor material most important in radiation detecting system, research.Work as flashing
When material and radiation interact, the variation of valence link or electron hole pair in material makes it generate photon, these light
Son can be used to quantify the energy or dosage of radiation, realize electromagnetism interference, passive, safe and reliable radiation sensing.With biography
The scintillation material of system is compared, and flash fiber has become one kind very as new scintillation material, with its own excellent feature
Promising material such as can be realized remote, real-time monitoring, can work in the presence of a harsh environment, for the anti-of electromagnetic interference
Property, small size, light-weight etc..
Currently, the research of flash fiber has obtained certain achievement, for example it is used for the poly-methyl methacrylate of radiotherapy
Ester (PMMA) optical fiber has tentatively been realized commercial.However plastic optical fiber has radiation absorption limited, easily old since material itself is limited
The disadvantages of changing, can not applying in the high temperature environment.And quartzy flash fiber although there is better capability of resistance to radiation, can be in high temperature
Lower use, but its lower photoyield limits its application.
The shortcomings that in order to overcome polymer plastic optical fiber and silica fibre, French Fibercryst SAS and
Instituted proposes the method using micro- descent method for growing YAG crystal optical fibre, realize crystal optical fibre in optical-fiber laser or
Application in optical-fibre communications material.Domestic Shanghai University also proposed a kind of YAG crystal-pulling light based on silica covering
Method for fiber.But due to being limited by monocrystal material performance itself and drawing process, the fibre diameter drawn is larger, reaches
To several millimeters or so, it is unable to satisfy the requirement of high pixel imaging size.Secondly, being coated on monocrystalline table in crystal-pulling optical fiber
Easily with the silica fibre welding of standard, the silicon atom in pulling process in covering inevitably permeates the silicon dioxide layer in face
Into in monocrystalline, the photoyield of single crystal fiber is caused to reduce.Therefore, the flashing of the high light yield of small-diameter sized how is drawn out
One of the problem of optical fiber is realization flash fiber application urgent need to resolve.The present invention proposes to replace two with the low lead glass material of yttrium containing Si
Silica is as the clad material for drawing scintillation crystal optical fiber, the low lead glass of yttrium containing the Si material for silica covering
Middle Si constituent content is low, and Y, Al element are a part of fibre core host material, this obtains Si infiltration amount of fibre in pulling process
To being effectively reduced, while diameter can be drawn in tens microns to several hundred microns optical fiber not etc., meet the different demands of imaging,
Realize that high light yield, fast decaying etc. require.
Summary of the invention
Si infiltration causes greatly when the technical problem to be solved by the present invention is to draw crystal optical fibre based on silica covering
Photoyield reduces and the problem excessive using micro- descent method drawing optical fiber diameter, proposes a kind of using the low lead glass of yttrium containing Si material
Scintillation crystal optical fiber is drawn as covering, the Si infiltration capacity in optical fiber is effectively reduced in pulling process, while can using the method
Several hundred microns not equal optical fiber is arrived to draw out tens microns.
Technical solution of the invention is as follows:
A kind of glass-clad flash fiber and preparation method thereof, feature be method includes the following steps:
<1>prepared by preform: group is divided into RE0.1:(A1-mBm)3(C1-nDn)5O12Crystalline material is cut into cylinder
Stick；Covering group is divided into xSiO2yY2O3zAl2O3Glass bore matches with crystalline material rod outside diameter, and glass tube one end passes through
MCVD lathe carries out receiving stick and is drawn as taper, forms preform；
<2>prepared by optical fiber: preform being put into graphite furnace wire-drawer-tower and carries out wire drawing, operating process is as follows: by taper
One end of sealing is inserted into graphite furnace, heating, wire drawing；
<3>optical fiber is heat-treated: the optical fiber of drawing is placed in Muffle furnace and is heat-treated, heat preservation a period of time.
The fibre core has garnet structure general formula, component RE0.1:(A1-mBm)3(C1-nDn)5O12.Wherein A be selected from Lu or
Gd；B is selected from Y；C is selected from Ga；D is selected from Al；RE is Yb3+,Ce3+Or Pr3+, and the range of m is 0~1；The range of n is 0~1.
The cladding glass material component xSiO2yY2O3zAl2O3.Wherein x is 0.2~0.4；Y is 0.225~0.3；Z is
0.375~0.5.
Compared with prior art, the beneficial effects of the present invention are: the optical fiber of scintillation material and inorganization, with low yttrium containing Si
Lead glass material is as the clad material for drawing scintillation crystal optical fiber, so that fibre core Si content is dropped to using dioxy in pulling process
The 20% of SiClx covering.Photoyield output can be improved as core material using garnet crystalline material, improve energy resolution
Rate and high-selenium corn ray energy.The optical fiber that diameter is not waited at tens microns to several hundred microns can be drawn simultaneously, met different
Imaging demand realizes that high light yield, fast decaying etc. require.
Detailed description of the invention
Fig. 1 is scintillation crystal preform main view of the invention
Fig. 2 is scintillation crystal preform side view of the invention
Specific embodiment
Below with reference to embodiment, the invention will be further described, but should not limit the scope of the present invention with this.
Embodiment 1:(m=0, n=0, x=0.2, y=0.3, z=0.5), A Gd, RE Ce3+, cladding glass material group
Divide 0.2SiO20.3Y2O30.5Al2O3, fibre core is with garnet structure, component Ce0.1:Gd3Ga5O12.By Ce ion doping stone
Garnet structure crystalline material prepares cylindrical ceramic stick, and cladding glass bore matches with crystalline material outer diameter.Glass tube
One end carries out receiving stick and is drawn as taper by MCVD lathe, is formed preform (as shown in Figure 1), preform is put
Enter graphite furnace wire-drawer-tower and carries out wire drawing.Operating process is as follows: one end that taper is sealed being inserted into graphite furnace, is heated, wire drawing.
The optical fiber of drawing is placed in Muffle furnace and is heat-treated, heat preservation a period of time.
Embodiment 2:(m=1, n=1, x=0.4, y=0.225, z=0.375), A Gd, RE Pr3+, cladding glass material
Expect component 0.4SiO20.225Y2O30.375Al2O3, fibre core is with garnet structure, component Pr0.1:Y3Al5O12.By Pr ion
Doped garnet structure crystalline state prepares cylindrical bar, and cladding glass bore matches with crystalline material outer diameter.Glass tube one end
It carries out receiving stick by MCVD lathe and is drawn as taper, formed preform (as shown in Figure 1), preform is put into stone
Black furnace wire-drawer-tower carries out wire drawing.Operating process is as follows: one end that taper is sealed is inserted into graphite furnace, is heated, wire drawing,.It will
The optical fiber of drawing, which is placed in Muffle furnace, to be heat-treated, heat preservation a period of time.
Embodiment 3:(m=2/3, n=3/5, x=0.4, y=0.225, z=0.375), A Gd, RE Yb3+, covering glass
Glass material component 0.4SiO20.225Y2O30.375Al2O3, fibre core is with garnet structure, component Yb0.1:
Gd1Y2Ga2Al3O12.Yb ion doping garnet structure crystalline material is prepared into cylindrical bar, cladding glass bore and crystalline state
Material outer diameter matches.Glass tube one end carries out receiving stick and is drawn as taper by MCVD lathe, forms preform (as schemed
Shown in 1), preform is put into graphite furnace wire-drawer-tower and carries out wire drawing.Operating process is as follows: one end of taper sealing is inserted into
Into graphite furnace, heating, wire drawing.The optical fiber of drawing is placed in Muffle furnace and is heat-treated, heat preservation a period of time.
The wavelength of fluorescence that the flash fiber that the embodiment of the present invention 1 is drawn issues is in 500-650nm range, most strong emission peak
Positioned at 550nm is located at, scintillation decay time 55ns can compare favourably with scintillation crystal.What the embodiment of the present invention 2 was drawn
Flash fiber photoyield is 9000ph/Mev, up to 10 times of glass optical fiber.This technique can draw core diameter as 10um flashing
Optical fiber effectively raises spatial resolution, makes spatial resolution to 20lp/mm, is better than other existing fiber optic materials.
Claims (2)
1. a kind of glass-clad flash fiber, including fibre core and covering, it is characterised in that: the fibre core is logical with garnet structure
Formula, group are divided into RE0.1:(A1-mBm)3(C1-nDn)5O12, wherein A is Lu or Gd；B is Y；C is Ga；D is Al；RE is Yb3+、Ce3+Or
Pr3+, and the range of m is 0~1；The range of n is 0~1；The group of the cladding glass material is divided into xSiO2yY2O3zAl2O3,
Middle x is 0.2~0.4；Y is 0.225~0.3；Z is 0.375~0.5.
2. the preparation method of glass-clad flash fiber according to claim 1, it is characterised in that: this method includes following step
It is rapid:
<1>group is divided into RE0.1:(A1-mBm)3(C1-nDn)5O12Crystalline material is cut into cylindrical bar；Covering is
xSiO2yY2O3zAl2O3Glass bore matches with crystalline material rod outside diameter, and glass tube one end carries out receipts stick by MCVD lathe
And it is drawn as taper, form preform；
<2>preform is put into graphite furnace wire-drawer-tower and carries out wire drawing, operating process is as follows: one end of taper sealing is inserted into
Into graphite furnace, heating, wire drawing；
<3>optical fiber of drawing is placed in Muffle furnace and is heat-treated, heat preservation a period of time.
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| CN201610210144.9A CN105676345B (en) | 2016-04-06 | 2016-04-06 | A kind of glass-clad flash fiber and preparation method thereof |
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| CN201610210144.9A CN105676345B (en) | 2016-04-06 | 2016-04-06 | A kind of glass-clad flash fiber and preparation method thereof |
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| CN105676345A CN105676345A (en) | 2016-06-15 |
| CN105676345B true CN105676345B (en) | 2018-12-25 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052973B (en) * | 2018-09-04 | 2021-09-03 | 同济大学 | Rare earth ion doped silicate optical fiber and preparation method thereof |
| CN110734228B (en) * | 2019-11-21 | 2021-11-30 | 北方工业大学 | Tellurate doped scintillation fiber and preparation method thereof |
| CN111302643A (en) * | 2020-03-06 | 2020-06-19 | 中国工程物理研究院材料研究所 | Glass optical fiber for neutron detection, scintillation material and preparation method thereof |
| CN111913208B (en) * | 2020-06-05 | 2024-02-13 | 华南理工大学 | Scintillation fiber probe prepared by fiber core melting method, scintillation fiber device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788436A (en) * | 1986-12-24 | 1988-11-29 | Walter Koechner | Radiation sensitive optical fiber and detector |
| CN104466633A (en) * | 2014-11-20 | 2015-03-25 | 天津大学 | High-power optical fiber laser device based on single crystal optical fiber |
| CN105242349A (en) * | 2015-10-31 | 2016-01-13 | 西南技术物理研究所 | Scintillation fiber array detection assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7146084B2 (en) * | 2003-06-16 | 2006-12-05 | Cmc Electronics, Inc. | Fiber optic light source for display devices |
-
2016
- 2016-04-06 CN CN201610210144.9A patent/CN105676345B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4788436A (en) * | 1986-12-24 | 1988-11-29 | Walter Koechner | Radiation sensitive optical fiber and detector |
| CN104466633A (en) * | 2014-11-20 | 2015-03-25 | 天津大学 | High-power optical fiber laser device based on single crystal optical fiber |
| CN105242349A (en) * | 2015-10-31 | 2016-01-13 | 西南技术物理研究所 | Scintillation fiber array detection assembly |
Non-Patent Citations (2)
| Title |
|---|
| Spectral properties and laser performance of Nd:Lu3Al5O12 ceramic;Shuqi Qiao 等;《CHINESE OPTICS LETTERS》;20150510;第5卷(第13期);第051602-4至051602-4页 * |
| 掺铈石英闪烁光纤的伽马传感特性研究;林施扬 等;《中国激光》;20150331;第42卷(第3期);第03050006-1至03050006-6页 * |
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