CN115453680A - 3 micron optical fiber component and preparation method thereof - Google Patents
3 micron optical fiber component and preparation method thereof Download PDFInfo
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- CN115453680A CN115453680A CN202211102577.4A CN202211102577A CN115453680A CN 115453680 A CN115453680 A CN 115453680A CN 202211102577 A CN202211102577 A CN 202211102577A CN 115453680 A CN115453680 A CN 115453680A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 124
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 175
- 230000031700 light absorption Effects 0.000 claims abstract description 51
- 238000003825 pressing Methods 0.000 claims description 33
- 239000012943 hotmelt Substances 0.000 claims description 28
- 238000002834 transmittance Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 14
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 238000000137 annealing Methods 0.000 claims description 12
- 239000006060 molten glass Substances 0.000 claims description 12
- 230000003595 spectral effect Effects 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000011358 absorbing material Substances 0.000 claims description 8
- 238000005253 cladding Methods 0.000 claims description 8
- 239000011162 core material Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 3
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- IUYLTEAJCNAMJK-UHFFFAOYSA-N cobalt(2+);oxygen(2-) Chemical compound [O-2].[Co+2] IUYLTEAJCNAMJK-UHFFFAOYSA-N 0.000 claims description 2
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract description 2
- 229910010413 TiO 2 Inorganic materials 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 17
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000007547 defect Effects 0.000 description 7
- 239000000156 glass melt Substances 0.000 description 7
- 238000010309 melting process Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 239000010453 quartz Substances 0.000 description 6
- XGCTUKUCGUNZDN-UHFFFAOYSA-N [B].O=O Chemical compound [B].O=O XGCTUKUCGUNZDN-UHFFFAOYSA-N 0.000 description 5
- 239000003086 colorant Substances 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 238000004031 devitrification Methods 0.000 description 4
- 230000004297 night vision Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007496 glass forming Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- -1 iron ions Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- 239000006184 cosolvent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
-
- 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
-
- 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
- C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
- C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
- C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
-
- 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
-
- 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
- G02B6/02395—Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a 3 micron optical fiber component and a preparation method thereof, wherein the light absorption frit glass of the 3 micron optical fiber component comprises the following components in percentage by mol: siO 2 2 60‑69.9，Al 2 O 3 1.0‑10.0，B 2 O 3 10.1‑15.0，Na 2 O 1.0‑8.0，K 2 O 3.0‑10.0，MgO 0.1‑1.0，CaO 0.5‑5.0，ZnO 0‑0.1，TiO 2 0‑0.1，ZrO 2 0.1‑1.0，Fe 2 O 3 3.0‑6.5，Co 2 O 3 0.1‑0.5，V 2 O 5 0.51‑1.5，MoO 3 0.1-1.0. The unit filament diameter of the 3-micrometer optical fiber component is controlled to be 2.5-3.0 μm, so that the optical fiber component is improvedThe 3 micron optical fiber component can be applied to a low-light-level image intensifier.
Description
Technical Field
The invention relates to the field of manufacturing of optical fiber components, in particular to a 3-micron optical fiber component and a preparation method thereof.
Background
The optical fiber element is a hard optical fiber element, comprises an optical fiber panel, an optical fiber image inverter, an optical fiber light cone, an optical fiber image transmission beam and the like, has the characteristics of good light collecting performance, high resolution and zero optical thickness, can transmit high-definition images with high fidelity, and is widely applied to input and output screens of various electronic optical devices. Resolution is usually used to indicate the quality of the image, and in colloquial terms is the minimum distance between two objects to be resolved, and is usually measured by the number of such distances per unit length, i.e. the logarithm of the line distance that can be resolved per mm. The higher the resolution, the better the performance of the transferred image and the sharper the transferred image.
In the prior art and products, most of optical fiber components with single fiber diameter of 4-6 microns are arranged regularly and have good optical insulation, and the resolution of the fiber optical components mainly depends on the distance between the centers of adjacent optical fibers and the arrangement form. For an optical fiber component with a fixed unit filament diameter, the resolution performance of the regular hexagonal fiber arrangement mode is 1.15 times that of the square arrangement mode, so that the regular hexagonal arrangement mode is used conventionally when the optical fiber component with high resolution is prepared. Therefore, the size of the diameter of a single fiber directly determines the resolution performance of the optical fiber component.
The contrast is also very critical to the visual effect, the contrast refers to the brightness and darkness of the picture, the contrast is increased, bright places in the picture are brighter, dark places are darker, and the brightness and darkness contrast is enhanced; the larger the contrast is, the clearer and more striking the image transmission, while the smaller the contrast is, the whole image transmission picture is gray. The high contrast is very helpful for the definition, detail representation and the like of the image transmission. There are two methods for improving contrast: firstly, the brightness is improved to increase the contrast, the method is relatively simple, but is limited by the problems of tube service life, element light leakage and the like, the brightness cannot be improved in an unlimited way, and the false high brightness can also cause distortion of image transmission due to high brightness and bring a bad effect; and secondly, the black is darker, the minimum brightness is reduced, and the contrast is more obvious. Therefore, whether the low-light level night vision device can capture sufficiently clear detailed information has a great relationship with the resolution and the contrast of the optical fiber component, the contrast is an important performance index in an optical fiber image transmission product, the contrast of the optical fiber component in the current market can only reach 3-5%, along with the continuous development of the optical fiber image transmission technology, the requirements on various performances of the product are higher and higher, and the optical fiber image transmission component is a key material for guaranteeing the imaging quality of the low-light level night vision device.
In order to solve the above problems, a method of filling a gap between adjacent optical fibers with a light-absorbing frit glass fiber is generally adopted to absorb stray light so as to improve the imaging quality of the optical fiber component. The light absorption wires are inserted into the gaps of the arranged optical fibers, and light absorption substances are added outside the cortex of the optical fibers to absorb crosstalk or stray light so as to realize optical insulation, so that the effects of crosstalk, light leakage and the like can be absorbed, and the area ratio of the core-sheath cannot be reduced. However, the light insulation cannot be completely realized by adopting the method of inserting the light absorption wire, and the key point of the defect is the problem of the light absorption material. The requirements for the light absorption material include that the light absorption material has strong light absorption capacity in the whole visible light and near infrared wavelength range, has a thermal expansion coefficient similar to that of the skin glass so as to be matched with each other in the process, has stable physical and chemical properties, and is not easy to crystallize or generate ionic valence state change in the process of wire drawing, hot melt pressing, torsion forming and the like. The common light absorption material glass still has higher transmittance to a visible light range under the thickness of 0.5mm, the transmittance can be gradually increased along with the reduction of the thickness, the problems of low stray light absorption efficiency, poor imaging contrast and the like generally exist in the light absorption material of the traditional optical fiber component, and particularly, the light absorption material glass applied to the optical fiber component has the defects that the existing light absorption material glass easily diffuses into sheath glass after the diameter of a fiber filament is drawn to be less than or equal to 4.0 mu m, so that ion permeation occurs among the glass, even the edge of the optical fiber component is blackened or the defect of fixed pattern noise occurs, such as white chicken silks, multifilament shadows and the like, so that the quality and the finished product qualification rate of the optical fiber component are very low, and the batch application requirement of the high-definition optical fiber component cannot be met. The main reason is that the light absorption capacity of the light absorption frit glass material and the fixed pattern noise defect are a group of contradictions, the light absorption capacity of the light absorption frit glass is too strong, the probability of the fixed pattern noise defect is higher, the light absorption capacity of the light absorption frit glass is too weak, and the effect of improving the contrast of the optical fiber image transmission component cannot be achieved. At present, an optical fiber component for improving image transmission resolution and contrast and a preparation method thereof are needed to be provided.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the preparation method of the 3-micron optical fiber component, which can improve the imaging contrast and resolution of the optical fiber component.
In order to achieve the purpose, the invention adopts the technical scheme that:
a preparation method of a 3-micron optical fiber component comprises the following steps:
(1) Preparing monofilaments and light-absorbing filaments: matching a core material glass rod with a high refractive index with a cladding material glass tube with a low refractive index, and then drawing a single filament to obtain a drawn single filament, wherein the filament diameter of the single filament is 2.0-3.7 mm; drawing a light-absorbing material glass rod into a light-absorbing wire, wherein the diameter of the light-absorbing wire is 0.30-0.57 mm;
(2) Preparing primary multifilament: arranging drawn monofilaments into a hexagonal body with a cross section of a regular hexagon, wherein the number of each side of each monofilament in the hexagonal body is 7, the total number of the monofilaments is 127, inserting light absorbing filaments into adjacent gaps among the drawn monofilaments, the number of the filament inserting filaments of the light absorbing filaments is 48-150, obtaining a primary composite rod, drawing the primary composite rod into primary multifilaments, wherein the cross section of the primary multifilaments is the regular hexagon, and the size of the hexagonal opposite sides of the primary multifilaments is 0.80-1.50mm;
(3) Preparing secondary multifilament: rearranging the primary multifilaments into a secondary composite rod with a cross section in a regular hexagon, wherein the number of the rods arranged on each side of the primary multifilaments is 15, the total number of the rods arranged on each side of the primary multifilaments is 631, redrawing the secondary composite rod into secondary multifilaments, the size of the hexagonal opposite sides of the secondary multifilaments is 0.89-1.06mm, and then arranging the secondary multifilaments into plate sections after cutting the secondary multifilaments in fixed length;
(4) Hot-melt molding: and (2) putting the arranged plate segments into a hot-melt pressing forming die, putting the die with the plate segments into a hot-melt pressing forming furnace at 450-550 ℃, starting pressing plates according to the compression ratio before and after the hot-melt pressing forming of the designed plate segments, controlling the time of the pressing plates for the hot-melt pressing forming to be 120-180 minutes, and carrying out subsequent processing treatment on the plate segments for the hot-melt pressing forming according to the designed specification and size to obtain the optical fiber component with the image transmission unit of 2.5-3 mu m.
Further, the preparation method of the light absorption frit glass for the light absorption wire comprises the following steps:
(a) Preparing raw materials: weighing quartz sand, alumina, boric acid or boric anhydride, sodium carbonate, potassium carbonate, basic magnesium carbonate, calcium carbonate, zinc oxide, titanium dioxide, zirconium oxide, ferric oxide, cobaltous oxide, vanadium pentoxide and molybdenum oxide according to a ratio, and uniformly mixing to obtain a raw material mixture;
(b) Melting glass: and (3) putting the raw material mixture into a crucible for high-temperature melting, clarifying after the raw material mixture is melted, casting molten and clarified glass liquid into glass with specified specification in a mold, and annealing after the glass is cooled and solidified to obtain the light absorption material glass.
The high-temperature melting comprises melting at 1450-1550 ℃ for 3-5 hours, and stirring the raw material mixture for 1-2 times in the melting process;
the clarifying temperature is 1300-1400 ℃, and the clarifying time is 1-2 hours;
the annealing process is that the temperature is kept for 2 to 3 hours at 500 to 549 ℃, and then the temperature is reduced to the room temperature for 20 to 24 hours;
and further, when the molten glass is not completely solidified after the casting is finished, uniformly vibrating the molten glass by using a vibrator to remove internal holes and bubbles in the molten glass.
The light absorption material glass comprises the following components in percentage by mole:
preferably, the light absorption material glass consists of the following components in percentage by mole:
more preferably, the light absorption frit glass consists of the following components in percentage by mole:
the invention also provides a 3-micron optical fiber component prepared according to the preparation method.
The crosstalk of the 3-micron optical fiber component at a position 0.1mm away from the knife edge is less than 1.0%; the resolution ratio of the 3-micrometer optical fiber component is greater than 190lp/mm; the 3 micron optical fiber component has spectral transmittance of more than 65% and transmittance uniformity of less than 5% in the wavelength range of 400-700 nm.
The light absorption frit glass has strong and uniform light absorption capacity and spectrum absorption effect within the wavelength range of 400-700nm under the thickness of 0.3 +/-0.01 mm, and the spectrum transmittance is less than or equal to 0.1 percent.
The invention also provides an application of the 3-micron optical fiber component in the low-light-level night vision technology, and the 3-micron optical fiber component can be applied to a low-light-level image intensifier.
The light absorption material glass can be applied to 3-micron optical fiber components, and the 3-micron optical fiber components can be applied to low-light-level image intensifiers.
The light absorption frit glass is suitable for being used as an outer wall absorption glass material of optical fibers when optical fiber components are prepared, the optical fiber components comprise an optical fiber panel, an optical fiber image inverter, an optical fiber light cone and an optical fiber image transmission bundle, and the light absorption frit glass is particularly suitable for preparing 3-micron optical fiber components.
In the present invention, siO 2 Is the main body of the glass forming skeleton and is the main component of the glass skeleton. SiO 2 2 In mole percent (mol.%) of 60-69.9.SiO 2 2 The content is less than 60mol.%, so that the thermal expansion coefficient similar to that of the cladding glass is not easy to obtain, and the chemical stability of the glass is reduced; siO 2 2 When the content is more than 69.9mol.%, the high-temperature viscosity of the glass increases, resulting in an excessively high glass melting temperature.
Al 2 O 3 Belonging to the intermediate oxides of glass, al 3+ There are two coordination states, namely in tetrahedra or octahedra, when there is sufficient oxygen in the glass, aluminum oxide tetrahedra [ AlO ] is formed 4 ]Form a continuous network with the silicon-oxygen tetrahedra, and when the glass is deficient in oxygen, form aluminum-oxygen octahedra [ AlO ] 6 ]In the cavities of the silicon-oxygen structure network for the network outer body, so that the silicon-oxygen structure network can be mixed with SiO in a certain content range 2 Is the body formed by the glass network. Al (aluminum) 2 O 3 A content of more than 10.0mol.% significantly increases the high-temperature viscosity of the glass, which increases the melting temperature of the glass, and therefore, al 2 O 3 Is 1.0-10.0 mol%.
B 2 O 3 The glass forming oxides are also components for forming a glass framework and are cosolvent for reducing the melting viscosity of the glass. Boron oxygen triangle (BO) 3 ]And boron-oxygen tetrahedron [ BO 4 ]Boron may be in the form of a trigonal [ BO ] under different conditions as a structural element 3 ]Or boron-oxygen tetrahedron [ BO 4 ]In the case of high-temperature melting conditions, it is generally difficult to form boron-oxygen tetrahedra, but boron-oxygen tetrahedra can exist only in the form of trihedron, but at low temperatures, B is present under certain conditions 3+ There is a tendency to abstract free oxygen to form tetrahedron, so that the structure is compact and the low-temperature viscosity of the glass is improved, but the content range is small because the characteristics of reducing the viscosity of the glass at high temperature and improving the viscosity of the glass at low temperature are main components for reducing the refractive index of the glass. B 2 O 3 In a mole percent (mol.%) of 10.1-15.0, B 2 O 3 Greater than 15.0mol.%, reduces the refractive index of the glass and increases the tendency of the glass to phase separate.
Na 2 O is an exo-oxide of the glass structure network, na 2 When the content of O is more than 8.0mol.%, the thermal expansion coefficient of the glass is increased and the refractive index of the glass is increased, so that Na 2 The mole percentage (mol.%) of O is 1.0-8.0.
K 2 O is a glass structure network exo-oxide, K 2 An O content of more than 10.0mol.% increases the thermal expansion coefficient of the glass and at the same time increases the refractive index of the glass, so that K 2 The mole percentage (mol.%) of O is 3.0-10.0.
MgO is an external oxide of a network of a glass structure, and when the content of MgO is more than 1.0 mol%, the devitrification tendency of the glass is increased, and at the same time, the density of the glass is decreased, and the refractive index of the glass is increased, so that the molar percentage (mol%) of MgO is 0.1 to 1.0.
CaO is an oxide of a network external body of a glass structure, and the content of CaO is more than 5.0 mol%, which can reduce the chemical stability of the glass, improve the refractive index of the glass and increase the crystallization tendency of the glass, so the mol percent (mol.%) of CaO is 0.5-5.0.
ZnO is used for adjusting the crystallization temperature and the chemical stability resistance of the glass, the mol percent of ZnO is 0-0.1 mol%, and the content of ZnO is more than 0.1 mol%, so that the chemical stability resistance of the glass is reduced, and the crystallization tendency is increased.
TiO 2 Is used to adjust the chemical resistance and devitrification of the glass, tiO 2 In a mole percent (mol.%) of 0-0.1, tiO 2 The content of (b) is more than 0.1mol.%, which reduces the resistance of the glass and increases the tendency to devitrify.
ZrO 2 Is used to adjust the chemical resistance and devitrification of the glass, zrO 2 Is in a molar percentage (mol.%) of 0.1 to 1.0, zrO 2 2 The content of (b) is more than 1.0mol.%, which reduces the resistance of the glass and increases the tendency to devitrify.
Fe 2 O 3 Is a light-absorbing colorant of light-absorbing glass, fe 2 O 3 In mol.% of 3.0 to 6.5, in the present invention Fe 2 O 3 Is the predominant light absorber, fe 3+ The ions have good light absorption performance, and the light absorption range is mainly concentrated in the visible light to infrared region, fe 2 O 3 The content of (A) is more than 6.5mol.%, which reduces the chemical resistance of the glass, increases the crystallization tendency of the glass, and is Fe 2 O 3 Less than 3.0mol.% results in Fe 2 O 3 The coloring of the optical fiber element becomes unstable or fades in the high-temperature drawing process, the optical absorption effect is directly influenced, the image transmission quality of the optical fiber element is seriously influenced, and the application requirement for improving the contrast of the optical fiber element cannot be met.
Co 2 O 3 Is a colorant for light-absorbing glasses, co 2 O 3 In mole percent (mol.%) of 0.1-0.5, co 2 O 3 Can combine with iron ions to form a stable state in the glass, thereby enabling the light absorbing material to be more stably colored. Co 2 O 3 When the content of (b) is more than 0.5 mol%, the chemical resistance of the glass is lowered, and the tendency of the glass to devitrify is increased.
V 2 O 5 Is a colorant for light-absorbing glasses, V 2 O 5 In mole percent (mol.%) of 0.51-1.5, V 2 O 5 Can solidify iron ions for coloring, thereby leading the coloring of the light absorbing material to be more stable. V 2 O 5 When the content of (B) is more than 1.5mol.%, the chemical resistance of the glass is lowered, and the devitrification of the glass is increasedAnd (4) tendency.
MoO 3 Is a transition metal oxide, also a colorant for light-absorbing glasses, moO 3 Is 0.1-1.0 mol.% (mol.%) 3 MoO, which is a stable colorant in glass because of its ability to bind iron and cobalt ions 3 The content of (b) is more than 1.0mol.%, which reduces the chemical resistance of the glass and increases the tendency of the glass to devitrify.
Compared with the prior art, the light absorption frit glass used for the 3 micron optical fiber component has the following characteristics:
(1) Has good light absorption performance, strong and uniform light absorption capability and spectrum absorption effect in the wavelength range of 400-700nm under the thickness of 0.3 +/-0.01 mm, and the spectrum transmittance is less than or equal to 0.1 percent;
(2) Has the similar thermal expansion coefficient and viscosity characteristics with the cladding glass, and the thermal expansion coefficient (82 +/-2) multiplied by 10 of the glass -7 /℃；
(3) The optical absorption material glass has good chemical stability and crystallization resistance, no calculus and no bubble hole inside the glass after being melted, no phase separation and crystallization after being kept at 820 ℃ for 6 hours, good crystallization resistance and excellent chemical stability.
The 3-micron optical fiber component prepared by adopting the light absorption material glass has the following characteristics:
(1) The crosstalk of the 3-micron optical fiber component at a position 0.1mm away from the knife edge is less than 1.0%;
(2) The resolution ratio of the 3-micron optical fiber component is more than 190lp/mm;
(3) The 3-micron optical fiber component has excellent fixed pattern noise performance, and no obvious multifilament boundary is observed under a microscope of 10 times;
(4) The 3 micron optical fiber component has transmittance of more than 65 percent in the wavelength range of 400-700nm, transmittance uniformity of less than 5 percent, few spot defects and no aggregation spot defects.
(5) When the light absorption material glass is applied to a 3-micron optical fiber component, the absorption of stray light among optical fibers can be effectively improved so as to reduce light crosstalk among the fibers, and thus the effect of improving the imaging contrast and definition of the 3-micron optical fiber component is achieved.
The invention reduces the diameter of the optical fiber and improves the resolution of the optical fiber component by inserting and adjusting the light absorption wire, so that the resolution of the optical fiber component is more than 190lp/mm, the contrast of the 3 micron optical fiber component is improved, and the crosstalk of the 3 micron optical fiber component at the position 0.1mm away from the knife edge is less than 1.0 percent, thereby preparing the 3 micron optical fiber component.
Drawings
The invention is further explained below with reference to the drawings and the embodiments.
Fig. 1 is a schematic structural diagram of a primary multifilament of a 3 μm optical fiber component according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical fiber structure provided by an embodiment of the present invention;
fig. 3 is a contrast test chart of a 3 μm optical fiber component prepared in example 1 of the present invention.
Wherein 1 is light absorption frit glass, 2 is core frit glass, and 3 is cladding frit glass.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below. The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Referring to fig. 1 and 2, the sheath glass tube and the core glass rod are matched and then drawn into monofilaments, the monofilaments comprise outer sheath glass 3 and inner core glass 2, 7 monofilaments on each side are arranged into a composite rod with a cross section of a regular hexagon, and then a light absorbing filament drawn from light absorbing material glass 1 is inserted between adjacent monofilaments to form a primary composite rod. The method for externally inserting the wires into the wall of the light absorption material glass can effectively absorb the crosstalk inside the optical fiber. The primary composite rod was drawn into a primary multifilament as shown in FIG. 1, in which the size L of the hexagonal opposite sides of the primary multifilament having a cross section of a regular hexagon was 0.80 to 1.50mm.
All "mole percent mol.%, based on the total molar amount of the final glass composition, are detailed herein in table 1 for the glass chemical compositions (mol.%) of the examples. Wherein, the light transmittance of the glass at 400nm-700nm is measured by a transmittance tester, and the thickness of the glass sheet is 0.3mm +/-0.01 mm; the crystallization temperature is measured by adopting a gradient crystallization furnace; linear expansion coefficient alpha of 30-300 DEG C 30/300 [10 -7 /℃]Measured using a horizontal dilatometer, expressed as the mean linear expansion coefficient, using the method specified in ISO 7991.
Table 1 chemical composition (mol.%) and glass properties of the examples
The raw materials used in the following examples and raw material requirements were as follows:
quartz sand or crystal powder (high purity, 150 μm oversize below 1%, 45 μm undersize below 30%, fe 2 O 3 Less than 1 ppm), alumina powder (analytically pure, 50 μm average particle size), boric acid or boric anhydride (10% or less for 400 μm oversize and 10% or less for 63 μm undersize), sodium carbonate (industrial soda), potassium carbonate (analytically pure, purity of 99.0% or more), basic magnesium carbonate (chemically pure, 50 μm average particle size), calcium carbonate (analytically pure, 250 μm average particle size), zinc oxide (analytically pure), titanium dioxide (analytically pure), zirconium oxide (analytically pure), ferric oxide (analytically pure), vanadium oxide (analytically pure), molybdenum oxide (analytically pure).
Example 1
Preparation of light-absorbing frit glass:
first, raw materials were selected in accordance with the glass composition of example 1 of Table 1, and the formulation was made to satisfy the glass chemical composition of Table 1. Then melting for 4 hours at 1500 ℃ by using a quartz crucible, stirring the glass for 1 to 2 times in the glass melting process to ensure that the glass is melted uniformly, clarifying the glass melt at 1350 ℃ for 2 hours after the glass is melted, casting the molten glass liquid into a specified specification, vibrating the glass liquid uniformly by using a vibrator to remove internal holes and bubbles in the glass melt when the glass liquid is not completely solidified after the casting is finished, carrying out annealing treatment after the glass rod is cooled and solidified, wherein the annealing process is to keep the temperature at 530 ℃ for 2 hours, and then cooling to room temperature for 24 hours to obtain the light absorption glass. The basic properties of the test specimens are shown in Table 1, with a visible light transmittance of 0% for a sample having a thickness of 0.3mm and a coefficient of thermal expansion of 80X 10-7/deg.C.
The method for preparing the 3 micron optical fiber component by using the light absorption frit glass comprises the following steps:
(1) Matching a core material glass rod with the diameter of 30mm and the high refractive index with a cladding material glass tube with the low refractive index and the wall thickness of 4.8mm, and then drawing a monofilament to obtain a drawn monofilament, wherein the diameter of the monofilament is 2.65mm; drawing a light-absorbing material glass rod into a light-absorbing wire, wherein the diameter of the light-absorbing wire is 0.39mm;
(2) Arranging drawn monofilaments into a hexagonal body with a cross section being a regular hexagon, wherein the number of each side of each monofilament in the hexagonal body is 7, the total number of the monofilaments is 127, inserting the light absorbing filaments into adjacent gaps among the drawn monofilaments, the number of the filament inserting filaments of the light absorbing filaments is 150, obtaining a primary composite rod, drawing the primary composite rod into primary multifilaments, wherein the cross section of the primary multifilaments is the regular hexagon, and the size L of the hexagonal opposite sides of the primary multifilaments is 1.19mm;
(3) Arranging the primary multifilaments into a secondary composite rod with a cross section in a regular hexagon according to requirements, wherein the number of the rods arranged on each side of the primary multifilaments is 15, the total number of the rods arranged on each side of the primary multifilaments is 631, drawing the secondary composite rod into a secondary multifilaments with a cross section in a regular hexagon, the size of the hexagonal opposite side of each secondary multifilaments is 1.06mm, and then cutting the secondary multifilaments into plate sections in fixed length;
(4) Hot-melt molding: putting the plate section into a hot-melt pressing forming die, putting the die with the plate section into a hot-melt pressing forming furnace at 500 ℃, then pressing the plate according to the compression ratio before and after the designed hot-melt pressing forming of the plate section, and controlling the time of the pressing plate for hot-melt pressing forming to be 150 minutes to obtain an optical fiber plate blank of the optical fiber component with the unit wire diameter of 3.0 mu m;
referring to fig. 3, the contrast performance test of the 3 micron optical fiber component prepared by using the light absorption frit glass shows that the crosstalk of the prepared 3 micron optical fiber component at a position 0.1mm away from a knife edge is 0.69%, and the theoretical calculation according to the resolution ratio is carried out
Therefore, the resolution of the prepared 3-micron optical fiber component is 192lp/mm (wherein d represents the unit filament diameter), the spectral transmittance of the prepared 3-micron optical fiber component is 66% in the wavelength range of 400-700nm, and the contrast and the resolution of the low-light-level image intensifier can be obviously improved by applying the prepared 3-micron optical fiber component to the low-light-level image intensifier.
Example 2
Preparation of light-absorbing frit glass:
referring to table 1, example 2, the actual composition of the glass refers to table 1, the raw materials and raw material requirements the same as those of example 1 are used, then a quartz crucible is used for melting at 1450 ℃ for 5 hours, in the glass melting process, the glass is stirred for 1 to 2 times to melt the glass uniformly, after the glass is melted, a glass melt is clarified at 1400 ℃ for 1 hour, the molten glass liquid is cast into a specified specification and is subjected to annealing treatment after being uniformly vibrated, and the annealing treatment is to keep the temperature at 525 ℃ for 2.5 hours and then reduce the temperature to room temperature for 20 hours, so that the light absorption glass of the invention is obtained. The basic properties of the test pieces are shown in Table 1, and the samples having a thickness of 0.3mm have a visible light transmittance of 0% and a thermal expansion coefficient of 81X 10 -7 /℃。
The method for preparing the 3-micron optical fiber component by using the light absorption frit glass comprises the following steps:
(1) Matching a high-refractive-index core material glass rod with the diameter of 30mm with a low-refractive-index cladding material glass tube with the wall thickness of 5.0mm, and then drawing a single filament to obtain a drawn single filament, wherein the filament diameter of the single filament is 2.0mm; drawing a light-absorbing material glass rod into a light-absorbing wire, wherein the diameter of the light-absorbing wire is 0.3mm;
(2) Arranging drawn monofilaments into a hexagonal body with a regular hexagonal cross section, wherein the number of each side of each monofilament in the hexagonal body is 7, the total number of the monofilaments is 127, inserting light absorbing filaments into adjacent gaps among the drawn monofilaments, the number of the filament inserting filaments of each light absorbing filament is 90, obtaining a primary composite rod, drawing the primary composite rod into a primary multifilament with a regular hexagonal cross section, and the size of the hexagonal opposite side of the primary multifilament is 0.8mm;
(3) Arranging the primary multifilaments into secondary composite rods with regular hexagonal cross sections according to requirements, wherein the number of the rods arranged on each side of the primary multifilaments is 15, the total number of the rods arranged on each side of the primary multifilaments is 631, drawing the secondary composite rods into secondary multifilaments with regular hexagonal cross sections, the size of the hexagonal opposite sides of the secondary multifilaments is 0.89mm, and cutting the secondary multifilaments into plate sections in fixed length;
(4) Hot-melt molding: putting the plate section into a hot-melt pressing forming die, putting the die with the plate section in a hot-melt pressing forming furnace at the high temperature of 450 ℃, then pressing the plate according to the compression ratio before and after the designed hot-melt pressing forming of the plate section, and controlling the time of the pressing plate for the hot-melt pressing forming to be 180 minutes to obtain an optical fiber plate blank of the optical fiber component with the unit wire diameter of 2.5 mu m;
the crosstalk of the prepared 3-micron optical fiber component at a position 0.1mm away from a knife edge is 0.80%, the resolution of the prepared 3-micron optical fiber component is 230lp/mm, the prepared 3-micron optical fiber component is within a wavelength range of 400-700nm, the spectral transmittance is 70%, and the contrast and the resolution of the low-light-level image intensifier can be obviously improved when the prepared 3-micron optical fiber component is applied to the low-light-level image intensifier.
Example 3
Actual composition of glass referring to table 1, example 3, using the same raw materials and raw material requirements as in example 1, then melting at 1550 ℃ for 3 hours using a quartz crucible, stirring the glass 1 to 2 times during the glass melting process to melt the glass uniformly, fining the glass melt at 1300 ℃ for 2 hours after the glass is melted, casting the molten glass to a specified specification and annealing at 540Keeping the temperature at the temperature for 3 hours, and cooling to the room temperature for 21 hours to obtain the light absorption glass. The basic properties of the test pieces are shown in Table 1, and the visible light transmittance of the sample having a thickness of 0.3mm is 0%, and the thermal expansion coefficient is 84X 10 -7 /℃。
The method for preparing the 3 micron optical fiber component by using the light absorption frit glass comprises the following steps:
(1) Matching the core material glass rod with the high refractive index with the cladding material glass tube with the low refractive index, and then drawing a single filament to obtain a drawn single filament, wherein the filament diameter of the single filament is 3.7mm; drawing a light-absorbing material glass rod into a light-absorbing wire, wherein the diameter of the light-absorbing wire is 0.57mm;
(2) Arranging drawn monofilaments into a hexagonal body with a regular hexagon cross section, wherein the number of each side of each monofilament in the hexagonal body is 7, the total number of the monofilaments is 127, inserting light absorbing filaments into adjacent gaps among the drawn monofilaments, the number of the filament inserting filaments of each light absorbing filament is 108, obtaining a primary composite rod, drawing the primary composite rod into a primary multifilament with a regular hexagon cross section, and the size of the hexagonal opposite side of the primary multifilament is 1.5mm;
(3) Arranging the primary multifilaments into a secondary composite rod with a cross section in a regular hexagon according to requirements, wherein the number of the rods arranged on each side of the primary multifilaments is 15, the total number of the rods arranged on each side of the primary multifilaments is 631, drawing the secondary composite rod into a secondary multifilaments with a cross section in a regular hexagon, the size of the hexagonal opposite sides of the secondary multifilaments is 0.90mm, and then cutting the secondary multifilaments into plate sections in fixed length;
(4) Hot-melt molding: putting the plate section into a hot-melt pressing forming die, putting the die with the plate section in a hot-melt pressing forming furnace at the high temperature of 550 ℃, then pressing the plate according to the compression ratio before and after the designed hot-melt pressing forming of the plate section, and controlling the time of the pressing plate for the hot-melt pressing forming within 120 minutes to obtain an optical fiber plate blank of the optical fiber component with the unit wire diameter of 2.77 mu m;
the crosstalk of the prepared 3-micron optical fiber component at a position 0.1mm away from the knife edge is 0.76%, the resolution of the prepared 3-micron optical fiber component is 208lp/mm, the prepared 3-micron optical fiber component is within the wavelength range of 400-700nm, the spectral transmittance is 68%, and the prepared 3-micron optical fiber component is applied to a low-light-level image intensifier, so that the contrast and the resolution of the low-light-level image intensifier can be obviously improved.
Example 4
Referring to table 1, example 4, the actual composition of the glass uses the same raw materials and raw material requirements as those of example 1, then the glass is melted at 1480 ℃ for 5 hours by using a quartz crucible, in the glass melting process, the glass is stirred for 1 to 2 times to melt the glass uniformly, after the glass is melted, the glass melt is clarified at 1380 ℃ for 1.5 hours, the molten glass liquid is cast into a specified specification and is annealed, and the annealing process is that the temperature is preserved at 500 ℃ for 2.5 hours and then is cooled to room temperature for 22 hours, so that the light absorption glass of the invention is obtained. The basic properties of the test pieces are shown in Table 1, and the visible light transmittance of the sample having a thickness of 0.3mm is 0%, and the thermal expansion coefficient is 84X 10 -7 /℃。
A 3 micron optical fiber component was prepared using the light absorbing frit glass as in example 1. The crosstalk of the prepared 3-micron optical fiber component at a position 0.1mm away from a knife edge is 0.79%, the resolution of the prepared 3-micron optical fiber component is 192lp/mm, the prepared 3-micron optical fiber component is within a wavelength range of 400-700nm, the spectral transmittance is 71%, and the prepared 3-micron optical fiber component is applied to a low-light-level image intensifier, so that the contrast and the resolution of the low-light-level image intensifier can be obviously improved.
Example 5
Referring to table 1, example 5, the actual composition of the glass uses the same raw materials and raw material requirements as those of example 1, then the glass is melted at 1460 ℃ for 4 hours by using a quartz crucible, in the glass melting process, the glass is stirred for 1 to 2 times to melt the glass uniformly, after the glass is melted, a glass melt is clarified at 1350 ℃ for 2 hours, the molten glass liquid is cast into a specified specification and annealed, and the annealing process is that the temperature is preserved at 549 ℃ for 3 hours and then the temperature is reduced to room temperature for 20 hours, so that the light absorption glass of the invention is obtained. The basic properties of the test pieces are shown in Table 1, and the samples having a thickness of 0.3mm have a visible light transmittance of 0% and a thermal expansion coefficient of 83X 10 -7 /℃。
A 3 micron optical fiber component was prepared using the light absorbing frit glass as in example 1. The crosstalk of the prepared 3-micron optical fiber component at a position 0.1mm away from a knife edge is 0.80%, the resolution of the prepared 3-micron optical fiber component is 192lp/mm, the prepared 3-micron optical fiber component is within a wavelength range of 400-700nm, the spectral transmittance is 69%, and the prepared 3-micron optical fiber component is applied to a low-light-level image intensifier, so that the contrast and the resolution of the low-light-level image intensifier can be obviously improved.
Example 6
Referring to table 1, example 5, the actual composition of the glass uses the same raw materials and raw material requirements as those of example 1, then the glass is melted at 1470 ℃ for 5 hours by using a quartz crucible, in the glass melting process, the glass is stirred for 1 to 2 times to melt the glass uniformly, after the glass is melted, the glass melt is clarified at 1370 ℃ for 2 hours, the molten glass liquid is cast into a specified specification and is annealed, and the annealing process is that the temperature is preserved at 540 ℃ for 3 hours and then is cooled to room temperature for 24 hours, so that the light absorption glass of the invention is obtained. The basic properties of the test pieces are shown in Table 1, and the visible light transmittance of the sample having a thickness of 0.3mm is 0%, and the thermal expansion coefficient is 82X 10 -7 /℃。
A 3 micron optical fiber component was prepared using the light absorbing frit glass as in example 1. The crosstalk of the prepared 3-micron optical fiber component at a position 0.1mm away from a knife edge is 0.82%, the resolution of the prepared 3-micron optical fiber component is 192lp/mm, the prepared 3-micron optical fiber component is within a wavelength range of 400-700nm, the spectral transmittance is 69%, and the prepared 3-micron optical fiber component is applied to a low-light-level image intensifier, so that the contrast and the resolution of the low-light-level image intensifier can be obviously improved.
The invention also provides the application of the 3-micron optical fiber component in the low-light-level image intensifier, so that the low-light-level night vision technology is widely applied.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A preparation method of a 3-micron optical fiber component is characterized by comprising the following steps:
(1) Preparing monofilaments and light-absorbing filaments: matching a core material glass rod with a high refractive index with a cladding material glass tube with a low refractive index, and then drawing a monofilament to obtain a drawn monofilament, wherein the filament diameter of the monofilament is 2.0-3.7 mm; drawing a light-absorbing material glass rod into a light-absorbing wire, wherein the diameter of the light-absorbing wire is 0.30-0.57 mm;
(2) Preparing primary multifilament: arranging drawn monofilaments into a hexagonal body with a cross section of a regular hexagon, wherein the number of each side of each monofilament in the hexagonal body is 7, the total number of the monofilaments is 127, inserting light absorbing filaments into adjacent gaps among the drawn monofilaments, the number of the filament inserting filaments of the light absorbing filaments is 48-150, obtaining a primary composite rod, drawing the primary composite rod into primary multifilaments, wherein the cross section of the primary multifilaments is the regular hexagon, and the size of the hexagonal opposite sides of the primary multifilaments is 0.80-1.50mm;
(3) Preparing secondary multifilament: rearranging the primary multifilaments into a secondary composite rod with a cross section in a regular hexagon, wherein the number of the rods arranged on each side of the primary multifilaments is 15, the total number of the rods arranged on each side of the primary multifilaments is 631, redrawing the secondary composite rod into secondary multifilaments, the size of the hexagonal opposite sides of the secondary multifilaments is 0.89-1.06mm, and then arranging the secondary multifilaments into plate sections after cutting the secondary multifilaments in fixed length;
(4) Hot-melt molding: and (2) putting the arranged plate segments into a hot-melt pressing forming die, putting the die with the plate segments into a hot-melt pressing forming furnace at 450-550 ℃, starting pressing plates according to the compression ratio before and after the hot-melt pressing forming of the designed plate segments, controlling the time of the pressing plates for the hot-melt pressing forming to be 120-180 minutes, and carrying out subsequent processing treatment on the plate segments for the hot-melt pressing forming according to the designed specification and size to obtain the optical fiber component with the image transmission unit of 2.5-3 mu m.
2. The method for preparing a light-absorbing frit glass for a light-absorbing wire according to claim 1, comprising the steps of:
(a) Preparing raw materials: weighing quartz sand, aluminum oxide, boric acid or boric anhydride, sodium carbonate, potassium carbonate, basic magnesium carbonate, calcium carbonate, zinc oxide, titanium dioxide, zirconium oxide, ferric oxide, cobaltous oxide, vanadium pentoxide and molybdenum oxide according to a ratio, and uniformly mixing to obtain a raw material mixture;
(b) Melting glass: and (3) putting the raw material mixture into a crucible for high-temperature melting, clarifying after the raw material mixture is melted, casting molten and clarified glass liquid into glass with specified specification in a mold, and annealing after the glass is cooled and solidified to obtain the light absorption material glass.
3. The preparation method of claim 2, wherein the high-temperature melting comprises melting at 1450-1550 ℃ for 3-5 hours, and the raw material mixture is stirred for 1-2 times during the melting;
the clarifying temperature is 1300-1400 ℃, and the clarifying time is 1-2 hours;
the annealing process is that the temperature is kept for 2 to 3 hours at 500 to 549 ℃, and then the temperature is reduced to the room temperature for 20 to 24 hours;
and the method also comprises the step of vibrating the molten glass evenly by using a vibrator when the molten glass is not completely solidified after the casting is finished so as to remove internal holes and bubbles in the molten glass.
4. A method as claimed in claim 2 or 3, wherein the light-absorbing frit glass consists of the following constituents in mol%:
5. the preparation method according to claim 4, wherein the light-absorbing frit glass consists of the following components in percentage by mole:
6. the method according to claim 4, wherein the light absorbing frit glass consists of the following components in percentage by mole:
7. a 3-micron optical fiber component, characterized by being prepared according to the preparation method of any one of claims 1 to 6.
8. The 3 micron optical fiber component as claimed in claim 7, wherein the 3 micron optical fiber component has a crosstalk of less than 1.0% at a distance of 0.1mm from the knife edge; the resolution ratio of the 3-micrometer optical fiber component is greater than 190lp/mm; the 3 micron optical fiber component has spectral transmittance of more than 65% and transmittance uniformity of less than 5% in the wavelength range of 400-700 nm.
9. A3 micron optical fiber component as claimed in claim 7, wherein the optical absorption frit glass has strong and uniform optical absorption capability and spectral absorption effect in the wavelength range of 400-700nm under the thickness of 0.3 +/-0.01 mm, and the spectral transmittance is less than or equal to 0.1%.
10. Use of a 3 micron fiber component as claimed in claim 7, 8 or 9 in a micro-optic image intensifier.
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| WO2023147757A1 (en) * | 2022-09-09 | 2023-08-10 | 中国建筑材料科学研究总院有限公司 | Light absorption material glass for high-contrast optical fiber inverter, and preparation method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005109054A2 (en) * | 2004-04-22 | 2005-11-17 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Fused array preform fabrication of holey optical fibers |
| DE102004061984A1 (en) * | 2004-12-23 | 2006-07-06 | Rehau Ag + Co | Ultraviolet-curable polymer molding composition for continuous finishing, used for extrudate or composite, e.g. tube, fiber or profile, contains silicon compound as cure enhancer and photoinitiator |
| US20080032879A1 (en) * | 2006-06-12 | 2008-02-07 | Asia Optical Co., Inc | Optical glass suitable for mold forming at low temperature |
| CN106772791A (en) * | 2017-04-01 | 2017-05-31 | 中国建筑材料科学研究总院 | Low stray light crosstalk type fibre optic image transmission element and preparation method thereof |
| CN111410423A (en) * | 2020-04-22 | 2020-07-14 | 中国建筑材料科学研究总院有限公司 | Light-absorbing frit glass for optical fiber image-transmitting element and preparation method thereof |
-
2022
- 2022-09-09 CN CN202211102577.4A patent/CN115453680B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005109054A2 (en) * | 2004-04-22 | 2005-11-17 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Fused array preform fabrication of holey optical fibers |
| DE102004061984A1 (en) * | 2004-12-23 | 2006-07-06 | Rehau Ag + Co | Ultraviolet-curable polymer molding composition for continuous finishing, used for extrudate or composite, e.g. tube, fiber or profile, contains silicon compound as cure enhancer and photoinitiator |
| US20080032879A1 (en) * | 2006-06-12 | 2008-02-07 | Asia Optical Co., Inc | Optical glass suitable for mold forming at low temperature |
| CN106772791A (en) * | 2017-04-01 | 2017-05-31 | 中国建筑材料科学研究总院 | Low stray light crosstalk type fibre optic image transmission element and preparation method thereof |
| CN111410423A (en) * | 2020-04-22 | 2020-07-14 | 中国建筑材料科学研究总院有限公司 | Light-absorbing frit glass for optical fiber image-transmitting element and preparation method thereof |
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| WO2023147757A1 (en) * | 2022-09-09 | 2023-08-10 | 中国建筑材料科学研究总院有限公司 | Light absorption material glass for high-contrast optical fiber inverter, and preparation method therefor |
| GB2625610A (en) * | 2022-09-09 | 2024-06-26 | China Building Mat Academy Co Ltd | Light absorption material glass for high-contrast optical fiber inverter, and preparation method therefor |
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