CN107797176B - A kind of As of phosphate glass covering2SexS3-xTernary semiconductor fibre core composite fiber and preparation method thereof - Google Patents
A kind of As of phosphate glass covering2SexS3-xTernary semiconductor fibre core composite fiber and preparation method thereof Download PDFInfo
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- CN107797176B CN107797176B CN201711156493.8A CN201711156493A CN107797176B CN 107797176 B CN107797176 B CN 107797176B CN 201711156493 A CN201711156493 A CN 201711156493A CN 107797176 B CN107797176 B CN 107797176B
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- phosphate glass
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
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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
- C03C3/12—Silica-free oxide glass compositions
- C03C3/16—Silica-free oxide glass compositions containing phosphorus
- C03C3/17—Silica-free oxide glass compositions containing phosphorus containing aluminium or beryllium
Abstract
The invention discloses a kind of As of phosphate glass covering2SexS3‑xTernary semiconductor fibre core composite fiber and preparation method thereof.The clad material of the composite fiber is phosphate glass, and the core material of optical fiber is ternary sulphur based semiconductor As2SexS3‑x, wherein 0 < x < 3.Composite fiber of the present invention combines phosphate glass and chalcogenide compound As2SexS3‑xExcellent photoelectric properties, with good photoelectric properties, there is good permeability and high non-linear in nearly mid and far infrared wave band, has huge application prospect in fields such as nonlinear optics, photodetection, biomedical sensing, infrared laser delivery or super continuum sources.The present invention rationally utilizes the characteristics such as wetting and the thermal expansion of fibre cladding and core material, using phosphate glass as fibre cladding, with chalcogenide compound As2SexS3‑xFor fiber core, by fusion method wire drawing, obtain can continuous drawing composite fiber.
Description
Technical field
The invention belongs to technical field of optical fiber, and in particular to a kind of As of phosphate glass covering2SexS3-xTernary semiconductor
Fibre core composite fiber and preparation method thereof.
Background technique
In recent years, supercontinum has been widely used in many science and technology fields, including wavelength-division multiplex system, photoelectricity
Sub- device, ultrashort pulse and the generation of optical frequency comb, non-linear micrology, optical measurement and Optical coherence tomography
Etc..The light source for generating super continuum light is also not quite similar, and such as continuous wavelength laser adjusts Q microcavity laser, picosecond laser and height
Repetition-radted laser pulse etc. can generate stable super continuum light.Super continuous spectrums refer to that strong short optical pulse passes through nonlinear dielectric
When, because Self-phase modulation present in medium, Cross-phase Modulation, four-wave mixing and mobile phone Raman scattering etc. are a series of non-linear
The collective effect of effect, so that generate some new frequency contents in the spectrum of output, i.e. a kind of phenomenon of pulse broadening.With
The development of optical fiber, optical fiber start to be concerned by people as the nonlinear dielectric for generating super continuous spectrums.But common optical fiber institute
Obtained limited spectrum.By taking quartz glass optical fiber as an example, lower optical waveguide is lost in visible and near infrared band as one kind
Structure, quartz glass optical fiber suddenly increase in the loss of wave band of the wavelength greater than 2 μm.To seek to cover surpassing to middle infrared band
Continuous spectrum, a kind of novel glass of fiber core covering composite fiber --- sulphur based semiconductor doped core optical fiber start to attract scientific worker's
Pay attention to.
Currently, the research of binary chalcogenide compound semiconductor is concentrated mainly on the compounds such as II-VI, III-V and V-VI,
Such as As2Se3And As2S3Deng.Wherein, As2Se3And As2S3Because of excellent thermotropic and photic material structure characteristic, in reversible optical storage
Device, semiconductor phase-change CD, four-wave mixing and holographic recording etc. have huge application prospect.Above compound semiconductor
It is to be met certain zwitterion structure by several different types of elements and constituted, nature parameters are relatively fixed.It is answered in difference
With the particular requirement that semiconductor property is proposed it is increasing in the case where, common compounds semiconductor has been unable to meet device and sets
The requirement of meter.It can be with the alloy semiconductor (As of consecutive variations at this point, introducing ingredient2SexOr AsxSy) be particularly important.Alloy
Semiconductor is particularly advantageous in that the continuously adjustable of ingredient relative to compound semiconductor.In fact, the adjusting by ingredient connects
Regulating and controlling semiconductor property parameter continuously further can be generalized to unlimited kind for semiconductor species.
In view of As2Se3Or As2S3The adjustable compositional range of bianry alloy semiconductor is small, can add on the basis of binary
One component forms ternary semiconductor (As2SexS3-x) to improve the performance of binary semiconductor.Ternary semiconductor has more preferably
Energy stability and characteristic of semiconductor, more chemical components and the Degree of Structure Freedom show richer, adjustable property.?
During actual experiment, because chalcogenide compound and sulphur system alloy semiconductor condition when preparing chalcogenide glass are harsh, it is difficult to be formed
Stabilized glass state.The method of simplicity a kind of is provided for this reason, it may be necessary to study to prepare sulphur based semiconductor (As2SexS3-x) fibre core phosphoric acid
Salt glass-clad composite material fiber, and pass through the system of the different ratio realization different demands performance fiber of element in allotment fibre core
It is standby.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of phosphate glass covering
As2SexS3-xTernary semiconductor fibre core composite fiber.The composite fiber is phosphate glass covering/As2SexS3-xTernary semiconductor
Fibre core composite fiber can generate supercontinum, and have high nonlinear factor.
The object of the invention is also to provide a kind of As of phosphate glass covering2SexS3-xTernary semiconductor is fine
The preparation method of core composite fiber.The preparation method rationally utilizes wetting and thermal expansion of fibre cladding and core material etc. special
Property, using phosphate glass as fibre cladding, with chalcogenide compound As2SexS3-xIt is obtained for fiber core by fusion method wire drawing
Can continuous drawing composite fiber.
The purpose of the present invention is achieved through the following technical solutions.
A kind of As of phosphate glass covering2SexS3-xTernary semiconductor fibre core composite fiber, the clad material of optical fiber are phosphorus
Silicate glass；The core material of optical fiber is ternary sulphur based semiconductor As2SexS3-x, wherein 0 < x < 3.
Further, the raw material composition of the phosphate glass, by weight percentage, including following component:
Prepare a kind of As of phosphate glass covering described in any of the above embodiments2SexS3-xTernary semiconductor fibre core complex light
Fine method, includes the following steps:
(1) it the preparation of phosphate glass covering: after the raw material of phosphate glass are passed through melting mixing, annealing, then passes through
Over mechanical processing obtains cylindrical phosphate glass column；It, will after the cylinder axis of the cylindrical phosphate glass column in edge drills through circular hole
The inner surface of the outer surface of cylindrical phosphate glass column and wherein circular hole polishes；
(2) preparation of preform: by As2S3The mixed-powder or As of powder and Se powder2Se3The mixed powder of powder and S powder
End is densely filled into the circular hole of cylindrical phosphate glass column, gas in powder is compacted and is discharged, by the closely knit envelope in circular hole both ends
It closes, completely cuts off contact of the mixed-powder with fresh air completely, form preform；
(3) drawing optical fibers: preform being placed on wire-drawer-tower and carries out wire drawing, obtains the continuous phosphate glass
The As of glass covering2SexS3-xTernary semiconductor fibre core composite fiber.
Further, in step (2), from one end of the circular hole of cylindrical phosphate glass column to the other end, filling it is mixed
The partial size for closing powder is that descending grain size distribution changes, and mixed-powder is made densely to be filled into cylindrical phosphate glass column
Circular hole in.
Further, in step (3), the temperature of the wire drawing is 600~700 DEG C, which is phosphate glass
Softening temperature section, drawn in the temperature range, since the fusing point of S powder is 112.8 DEG C, the fusing point of Se powder is 221
DEG C, the As of filling2S3The mixed-powder or As of powder and Se powder2Se3The mixed-powder of powder and S powder will melt, and form As2SexS3-xIt is molten
Melt body, so obtain can continuous drawing composite fiber.
Further, in step (3), the wire drawing is carried out under Ar gas shielded atmosphere.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that
(1) As of phosphate glass covering of the invention2SexS3-xTernary semiconductor fibre core composite fiber is with phosphate glass
For fibre cladding, with pozzuolite selenium compound As2SexS3-xFor fiber core, fibre cladding and core material are utilized well
Wetting and expansion characteristics, thus obtain can continuous straightening mechanism composite material fiber；
(2) As of phosphate glass covering of the invention2SexS3-xTernary semiconductor fibre core composite fiber combines phosphate
Glass and chalcogenide compound As2SexS3-xExcellent photoelectric properties, have good photoelectric properties, have in nearly mid and far infrared wave band
Good permeability and high non-linear, in nonlinear optics, photodetection, biomedical sensing, infrared laser delivery or super
There is huge application prospect in the fields such as continuous spectrum light source；
(3) preparation method of the present invention is simple for process, and low energy consumption, is conducive to large-scale industrial production.
Detailed description of the invention
Fig. 1 is the As of phosphate glass covering prepared by embodiment 12SexS3-x(x=0.5) axial direction of fibre core composite fiber
Optical microscope.
Specific embodiment
Technical solution of the present invention is described further below in conjunction with drawings and examples, but claimed
Range is not limited thereto.
In the specific embodiment of the invention, the As of phosphate glass covering is prepared2SexS3-xTernary semiconductor fibre core composite fiber
Method, include the following steps:
(1) by the raw material of phosphate glass after 1100~1300 DEG C of melting mixings of temperature, annealing adds using machinery
Work obtains 15~25mm of diameter of phi, the cylindrical phosphate glass column of long 100~150mm；Along cylindrical phosphate glass column
After cylinder axis drills through the circular hole of 2~4mm of diameter, by the outer surface of cylindrical phosphate glass column and the wherein inner surface of circular hole
Polishing；
(2) by As2S3The mixed-powder or As of powder and Se powder2Se3The mixed-powder of powder and S powder is densely filled into cylinder
In the circular hole of shape phosphate glass column, it is compacted and is discharged gas in powder, by the closely knit closing in circular hole both ends, forms preform；
(3) preform is placed on wire-drawer-tower, is heated to 600~700 DEG C of progress wire drawings of temperature, obtains continuous institute
The As for the phosphate glass covering stated2SexS3-xTernary semiconductor fibre core composite fiber.
In specific embodiment, the As of use2S3Powder, Se powder, As2Se3The purity of powder or S powder is 99.99%.
The optical fiber of different-diameter can then can be obtained by adjusting the relevant parameter of wire drawing according to the different needs.
Embodiment 1
The As of phosphate glass covering2SexS3-x(x=0.5) preparation of ternary semiconductor fibre core composite fiber, specific steps
It is as follows:
(1) phosphate glass covering is melted: block phosphate glass is melted using traditional melting-annealing method,
By weight percentage, the raw material composition of phosphate glass covering is as follows:
Raw material is weighed according to the ratio, is uniformly mixed, is added in corundum crucible and is melted at 1200 DEG C, after fine annealing, is obtained
Block phosphate glass；
(2) machining of phosphate glass: by the structural glass covering of fine annealing, being processed into diameter of phi 20mm,
The phosphate glass cylindrical body of long 120mm, then the circle of diameter 3mm is drilled through among phosphate glass cylindrical body along cylinder axis
Hole, phosphate glass periphery and circular hole interior surface are all by mechanically and chemically polishing；
(3) assembling of preform: by As2S3Powder and Se powder (purity is 99.99%) are uniformly mixed (As2S3Weight
Amount is 14.7%), to be filled into the hole of phosphate glass cylindrical body of processing, using reasonable than the weight ratio for being 85.3%, Se
Grain size distribution densify powder, be compacted fibre core powder, be discharged powder in gas, rear closed glass pipe both ends, to completely cut off completely
As in hole2S3Contact of the mixture of powder and Se powder with air forms preform；
(4) drawing optical fibers: preform being suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, is warming up to 600 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and is located in phosphate glass stick
As in heart hole2S3The melting of the mixture of powder and Se powder, forms melt compound, and with phosphorus under the limitation of phosphate glass
Silicate glass is drawn into optical fiber together；After optical fiber goes out fiber drawing furnace, solidify through natural cooling, obtains phosphate glass covering
As2Se0.5S2.5Ternary semiconductor fibre core composite material fiber.
The As of the phosphate glass covering of preparation2Se0.5S2.5The axial optics of ternary semiconductor fibre core composite material fiber
For microscope figure as shown in Figure 1, as shown in Figure 1, core diameter is 100 μm, cladding diameter is 322 μm.
Embodiment 2
The As of phosphate glass covering2SexS3-x(x=1) preparation of ternary semiconductor fibre core composite fiber, specific steps are such as
Under:
(1) phosphate glass covering is melted: block phosphate glass is melted using traditional melting-annealing method,
By weight percentage, the raw material composition of phosphate glass covering is as follows:
Raw material is weighed according to the ratio, is uniformly mixed, is added in corundum crucible and is melted at 1100 DEG C, after fine annealing, is obtained
Block phosphate glass；
(2) machining of phosphate glass: by the bulk cladding glass of fine annealing, being processed into diameter of phi 20mm,
The phosphate glass cylinder of long 120mm, then diameter 3mm circular hole, phosphoric acid are drilled through along cylinder axis among phosphate glass cylinder
Salt glass cylinder surface and circular hole interior surface are all by mechanically and chemically polishing；
(3) assembling of preform: by As2S3Powder and Se powder (purity is 99.99%) are uniformly mixed (As2S3Weight
Amount is 27.0%), to be filled into the hole of phosphate glass cylindrical body of processing, using reasonable than the weight ratio for being 73.0%, Se
Grain size distribution densify powder, be compacted fibre core powder, be discharged powder in gas, rear closed glass pipe both ends, to completely cut off completely
As in hole2S3Contact of the mixture of powder and Se powder with air forms preform；
(4) drawing optical fibers: preform being suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, is warming up to 625 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and is located in phosphate glass stick
As in heart hole2S3The melting of the mixture of powder and Se powder, forms melt compound, and with phosphorus under the limitation of phosphate glass
Silicate glass is drawn into optical fiber together；After optical fiber goes out fiber drawing furnace, solidify through natural cooling, obtains phosphate glass covering
As2Se1S2Ternary semiconductor fibre core composite material fiber.
The As of the phosphate glass covering of preparation2Se1S2The axial optical microphotograph of ternary semiconductor fibre core composite material fiber
For mirror figure referring to Fig. 1, core diameter is 103 μm, and cladding diameter is 325 μm.
Embodiment 3
The As of phosphate glass covering2SexS3-x(x=1.5) preparation of ternary semiconductor fibre core composite fiber, specific steps
It is as follows:
(1) phosphate glass covering is melted: block phosphate glass is melted using traditional melting-annealing method,
By weight percentage, phosphate glass covering is that raw material composition is as follows:
Raw material is weighed according to the ratio, is uniformly mixed, is added in corundum crucible and is melted at 1200 DEG C, after fine annealing, is obtained
Block phosphate glass；
(2) machining of phosphate glass: by the bulk cladding glass of fine annealing, being processed into diameter of phi 20mm,
The phosphate glass cylinder of long 120mm, then diameter 3mm circular hole, phosphoric acid are drilled with along cylinder axis among phosphate glass cylinder
Salt glass cylinder surface and circular hole interior surface are all by mechanically and chemically polishing；
(3) assembling of preform: by As2S3Powder and Se powder (purity is 99.99%) are uniformly mixed (As2S3Weight
Amount is 37.4%), to be filled into the hole of phosphate glass cylindrical body of processing, using reasonable than the weight ratio for being 62.6%, Se
Grain size distribution densify powder, be compacted fibre core powder, be discharged powder in gas, rear closed glass pipe both ends, to completely cut off completely
As in hole2S3Contact of the mixture of powder and Se powder with air forms preform；
(4) drawing optical fibers: preform being suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, is warming up to 650 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and is located in phosphate glass stick
As in heart hole2S3The melting of the mixture of powder and Se powder, forms melt compound, and with phosphorus under the limitation of phosphate glass
Silicate glass is drawn into optical fiber together；After optical fiber goes out fiber drawing furnace, solidify through natural cooling, obtains phosphate glass covering
As2Se1.5S1.5Ternary semiconductor fibre core composite material fiber.
The As of the phosphate glass covering of preparation2Se1.5S1.5The axial optics of ternary semiconductor fibre core composite material fiber
For microscope figure referring to Fig. 1, core diameter is 101 μm, and cladding diameter is 323 μm.
Embodiment 4
The As of phosphate glass covering2SexS3-x(x=2) preparation of ternary semiconductor fibre core composite fiber, specific steps are such as
Under:
(1) phosphate glass covering is melted: block phosphate glass is melted using traditional melting-annealing method,
By weight percentage, phosphate glass covering is that raw material composition is as follows:
Raw material is weighed according to the ratio, is uniformly mixed, is added in corundum crucible and is melted at 1300 DEG C, after fine annealing, is obtained
Block phosphate glass；
(2) machining of phosphate glass: by the bulk cladding glass of fine annealing, being processed into diameter of phi 20mm,
The phosphate glass cylinder of long 120mm, then diameter 3mm circular hole, phosphoric acid are drilled with along cylinder axis among phosphate glass cylinder
Salt glass cylinder surface and circular hole interior surface are all by mechanically and chemically polishing；
(3) assembling of preform: by As2Se3Powder and S powder (purity is 99.99%) are uniformly mixed (As2Se3's
The weight ratio that weight ratio is 90.6%, S is 9.4%), to be filled into the hole of phosphate glass cylindrical body of processing, using reasonable
Grain size distribution densify powder, be compacted fibre core powder, be discharged powder in gas, rear closed glass pipe both ends, to completely cut off completely
As in hole2Se3Contact of the mixture of powder and S powder with air forms preform；
(4) drawing optical fibers: preform being suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, is warming up to 675 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and is located in phosphate glass stick
As in heart hole2Se3The melting of the mixture of powder and S powder, forms melt compound, and with phosphorus under the limitation of phosphate glass
Silicate glass is drawn into optical fiber together；After optical fiber goes out fiber drawing furnace, solidify through natural cooling, obtains phosphate glass covering
As2Se2S1Ternary semiconductor fibre core composite material fiber.
The As of the phosphate glass covering of preparation2Se2S1The axial optical microphotograph of ternary semiconductor fibre core composite material fiber
For mirror figure referring to Fig. 1, core diameter is 103 μm, and cladding diameter is 319 μm.
Embodiment 5
The As of phosphate glass covering2SexS3-xThe preparation of ternary semiconductor (x=2.5) fibre core composite fiber, specific steps
It is as follows:
(1) phosphate glass covering is melted: block phosphate glass is melted using traditional melting-annealing method,
By weight percentage, the raw material composition of phosphate glass covering is as follows:
Raw material is weighed according to the ratio, is uniformly mixed, is added in corundum crucible and is melted at 1200 DEG C, after fine annealing, is obtained
Block phosphate glass；
(2) machining of phosphate glass: by the bulk cladding glass of fine annealing, being processed into diameter of phi 20mm,
The phosphate glass cylinder of long 120mm, then diameter 3mm circular hole, phosphoric acid are drilled with along cylinder axis among phosphate glass cylinder
Salt glass cylinder surface and circular hole interior surface are all by mechanically and chemically polishing；
(3) assembling of preform: by As2Se3Powder and S powder (purity is 99.99%) are uniformly mixed (As2Se3's
The weight ratio that weight ratio is 95.6%, S is 4.4%), to be filled into the hole of phosphate glass cylindrical body of processing, using reasonable
Grain size distribution densify powder, be compacted fibre core powder, be discharged powder in gas, rear closed glass pipe both ends, to completely cut off completely
As in hole2Se3The contact of powder and S powder mixture with air forms preform；
(4) drawing optical fibers: preform being suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, is warming up to 700 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and is located in phosphate glass stick
The mixture of pozzuolite powder in heart hole melts, and forms melt compound, and with phosphate glass under the limitation of phosphate glass
Glass is drawn into optical fiber together；After optical fiber goes out fiber drawing furnace, solidify through natural cooling, obtains phosphate glass covering
As2Se2.5S0.5Fibre core composite material fiber.
The As of the phosphate glass covering of preparation2Se2.5S0.5The axial optics of ternary semiconductor fibre core composite material fiber
For microscope figure referring to Fig. 1, core diameter is 102 μm, and cladding diameter is 321 μm.
The As of the phosphate glass covering of Examples 1 to 5 preparation2SexS3-xTernary semiconductor fibre core composite material fiber
Nonlinear factor and photoelectric properties parameter are as shown in Table 1.
The nonlinear factor and photoelectric properties parameter of the optical fiber of 1 Examples 1 to 5 of table preparation
As shown in Table 1, the As of the phosphate glass covering of Examples 1 to 5 preparation2SexS3-xTernary semiconductor fibre core is compound
Material optical fiber has good photoelectric properties, has good permeability and high non-linear in nearly mid and far infrared wave band, non-thread
Property the fields such as optics, photodetection, biomedical sensing, infrared laser delivery or super continuum source have huge application before
Scape.
Above embodiments are only preferrred embodiment of the present invention, for explaining only the invention, are not intended to limit the present invention, this
Field technical staff should belong to guarantor of the invention without departing from change made under spirit of the invention, replacement, modification etc.
Protect range.
Claims (5)
1. a kind of As of phosphate glass covering2SexS3-xTernary semiconductor fibre core composite fiber, which is characterized in that the packet of optical fiber
Layer material is phosphate glass；The core material of optical fiber is ternary sulphur based semiconductor As2SexS3-x, wherein 0 < x < 3；The phosphorus
The raw material of silicate glass form, by weight percentage, including following component:
P2O560~70%；
BaO 10~20%；
Al2O35~20%；
La2O31~5%；
The As of the phosphate glass covering2SexS3-xThe preparation method of ternary semiconductor fibre core composite fiber includes the following steps:
(1) after by the raw material of phosphate glass by melting mixing, annealing, using machining, cylindrical phosphoric acid is obtained
Salt glass column；After the cylinder axis of the cylindrical phosphate glass column in edge drills through circular hole, by the appearance of cylindrical phosphate glass column
The inner surface of face and wherein circular hole polishes；
(2) by As2S3The mixed-powder or As of powder and Se powder2Se3The mixed-powder of powder and S powder is densely filled into cylindrical phosphorus
In the circular hole of silicate glass column, it is compacted and is discharged gas in powder, by the closely knit closing in circular hole both ends, forms preform；
(3) preform is placed on wire-drawer-tower and carries out wire drawing, obtain the continuous phosphate glass covering
As2SexS3-xTernary semiconductor fibre core composite fiber.
2. preparing a kind of As of phosphate glass covering described in claim 12SexS3-xTernary semiconductor fibre core composite fiber
Method, which comprises the steps of:
(1) after by the raw material of phosphate glass by melting mixing, annealing, using machining, cylindrical phosphoric acid is obtained
Salt glass column；After the cylinder axis of the cylindrical phosphate glass column in edge drills through circular hole, by the appearance of cylindrical phosphate glass column
The inner surface of face and wherein circular hole polishes；
(2) by As2S3The mixed-powder or As of powder and Se powder2Se3The mixed-powder of powder and S powder is densely filled into cylindrical phosphorus
In the circular hole of silicate glass column, it is compacted and is discharged gas in powder, by the closely knit closing in circular hole both ends, forms preform；
(3) preform is placed on wire-drawer-tower and carries out wire drawing, obtain the continuous phosphate glass covering
As2SexS3-xTernary semiconductor fibre core composite fiber.
3. preparation method according to claim 2, which is characterized in that in step (2), from cylindrical phosphate glass column
To the other end, the partial size of the mixed-powder of filling is that descending grain size distribution changes for one end of circular hole, causes mixed-powder
It is thickly filled into the circular hole of cylindrical phosphate glass column.
4. preparation method according to claim 2, which is characterized in that in step (3), the temperature of the wire drawing is 600 ~
700℃。
5. preparation method according to claim 2, which is characterized in that in step (3), the wire drawing is in Ar gas shielded gas
It is carried out under atmosphere.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539090A (en) * | 2001-04-12 | 2004-10-20 | �ź㴫 | High refractivity filber waveguides and its application |
| CN104570198A (en) * | 2014-12-31 | 2015-04-29 | 华南理工大学 | Composite optical fiber with multi-component phosphate glass cladding/selenium and tellurium compound semiconductor fiber core |
-
2017
- 2017-11-20 CN CN201711156493.8A patent/CN107797176B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1539090A (en) * | 2001-04-12 | 2004-10-20 | �ź㴫 | High refractivity filber waveguides and its application |
| CN104570198A (en) * | 2014-12-31 | 2015-04-29 | 华南理工大学 | Composite optical fiber with multi-component phosphate glass cladding/selenium and tellurium compound semiconductor fiber core |
Non-Patent Citations (1)
| Title |
|---|
| Physical and Thermal Properties of P2O5-Al2O3-BaO-La2O3 Glasses;Yang LI 等;《JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY》;20050531;第21卷(第3期);第391-392页 * |
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