CN107797176A - 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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- CN107797176A CN107797176A CN201711156493.8A CN201711156493A CN107797176A CN 107797176 A CN107797176 A CN 107797176A CN 201711156493 A CN201711156493 A CN 201711156493A CN 107797176 A CN107797176 A CN 107797176A
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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
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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, have huge application prospect in the field such as nonlinear optics, photodetection, biomedical sensing, infrared laser delivery or super continuum source.The characteristics such as the wetting and thermal expansion of the invention for rationally utilizing 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 technology
In recent years, super continuum light spectrum 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 producing super continuum light is also not quite similar, and such as continuous wavelength laser, adjusts Q microcavity lasers, picosecond laser and height
Repetition-radted laser pulse etc. can produce 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 a kind of phenomenon of some new frequency contents, i.e. pulse stretching is produced in the spectrum of output.With
The development of optical fiber, optical fiber start to be concerned by people as the nonlinear dielectric for producing super continuous spectrums.But common optical fiber institute
Obtained limited spectrum.By taking quartz glass optical fiber as an example, relatively low fiber waveguide is lost in visible and near infrared band as a kind of
Structure, quartz glass optical fiber suddenly increase in the loss of wave band of the wavelength more than 2 μm.To seek covering surpassing to middle infrared band
Continuous spectrum, a kind of new glass of fiber core covering composite fiber --- sulphur based semiconductor doped core optical fiber start to attract scientific worker's
Pay attention to.
At present, the research of binary chalcogenide compound semiconductor is concentrated mainly on the compound such as II-VI, III-V and V-VI,
Such as As2Se3And As2S3Deng.Wherein, As2Se3And As2S3Because of excellent thermic 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-claimed cpd semiconductor
It is to be met certain zwitterion structure by several different types of elements and formed, nature parameters are more fixed.Should in difference
With the particular requirement proposed to semiconductor property it is increasing in the case of, common compounds semiconductor can not meet that device is set
The requirement of meter.Now, introducing composition can be with the alloy semiconductor (As of consecutive variations2SexOr AsxSy) be particularly important.Alloy
Semiconductor relative to compound semiconductor the continuously adjustabe for being particularly advantageous in that composition.In fact, connected by the regulation of composition
Regulate and control semiconductor property parameter continuously further can be generalized to unlimited kind by semiconductor species.
In view of As2Se3Or As2S3The adjustable compositional range of bianry alloy semiconductor is small, can be added on the basis of binary
One component, form ternary semiconductor (As2SexS3-x) to improve the performance of binary semiconductor.Ternary semiconductor has more excellent
Energy stability and characteristic of semiconductor, more chemical compositions and the Degree of Structure Freedom, show more rich, adjustable property.
During actual experiment, because chalcogenide compound and sulphur system alloy semiconductor condition when preparing chalcogenide glass are harsh, it is difficult to formed
Stabilized glass state.A kind of easy method is provided to prepare sulphur based semiconductor (As for this reason, it may be necessary to study2SexS3-x) fibre core phosphoric acid
Salt glass-clad composite material fiber, and realize by allocating the different ratio of element in fibre core the system of different demands performance fiber
It is standby.
The content 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 As of phosphate glass covering2SexS3-x
Ternary semiconductor fibre core composite fiber.The composite fiber is phosphate glass covering/As2SexS3-xTernary semiconductor fibre core is compound
Optical fiber, super continuum light spectrum can be produced, and there is high nonlinear factor.
The present invention also aims to provide a kind of As of described phosphate glass covering2SexS3-xTernary semiconductor is fine
The preparation method of core composite fiber.The preparation method rationally utilizes the spies such as the wetting and thermal expansion of fibre cladding and core material
Property, using phosphate glass as fibre cladding, with chalcogenide compound As2SexS3-xFor fiber core, by fusion method wire drawing, obtain
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 is 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-described2SexS3-xTernary semiconductor fibre core complex light
Fine method, comprises the following steps：
(1) preparation of phosphate glass covering：By the raw material of phosphate glass by melting mixing, annealing after, then pass through
Over mechanical processing, obtain cylindrical phosphate glass post；, will after drilling through circular hole along the cylinder axis of cylindrical phosphate glass post
The inner surface polishing of the outer surface of cylindrical phosphate glass post and wherein circular hole；
(2) preparation of preform：By As2S3The mixed-powder of powder and Se powder, or As2Se3The mixed powder of powder and S powder
End is densely filled into the circular hole of cylindrical phosphate glass post, is compacted and is discharged gas in powder, by the closely knit envelope in circular hole both ends
Close, completely cut off contact of the mixed-powder with fresh air completely, form preform；
(3) drawing optical fibers：Preform is placed on wire-drawer-tower and carries out wire drawing, obtains continuous described phosphate glass
The As of glass covering2SexS3-xTernary semiconductor fibre core composite fiber.
Further, in step (2), mixed from one end to the other end, the filling of the circular hole of cylindrical phosphate glass post
The particle diameter for closing powder changes for descending grain size distribution, mixed-powder is densely filled into cylindrical phosphate glass post
Circular hole in.
Further, in step (3), the temperature of the wire drawing is 600~700 DEG C, and the temperature range is phosphate glass
Softening temperature section, drawn in the temperature range, because 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 beneficial effect：
(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 make use of 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, there are 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 energy consumption is low, is advantageous to large-scale industrial production.
Brief description of the drawings
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.
Embodiment
Technical solution of the present invention is described further below in conjunction with drawings and examples, but it is claimed
Scope 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, comprise the following steps：
(1) by the raw material of phosphate glass after 1100~1300 DEG C of melting mixings of temperature, annealing, then add by machinery
Work, obtain 15~25mm of diameter of phi, long 100~150mm cylindrical phosphate glass post；Along cylindrical phosphate glass post
After cylinder axis drill through 2~4mm of diameter circular hole, by the outer surface of cylindrical phosphate glass post and the wherein inner surface of circular hole
Polishing；
(2) by As2S3The mixed-powder of powder and Se powder, or As2Se3The mixed-powder of powder and S powder is densely filled into cylinder
In the circular hole of shape phosphate glass post, it is compacted and discharges 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 then can be i.e. available 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 founded：Block phosphate glass is founded using the method for traditional melting-annealing,
By weight percentage, the raw material composition of phosphate glass covering is as follows：
Raw material is weighed by proportioning, is well mixed, is added in corundum crucible and is founded 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, diameter of phi 20mm is processed into,
Long 120mm phosphate glass cylinder, then diameter 3mm circle is drilled through among phosphate glass cylinder 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 well mixed (As2S3Weight
Amount is 14.7%), to be filled into the hole of phosphate glass cylinder of processing, using reasonable than the weight ratio for being 85.3%, Se
Grain size distribution be densified powder, be compacted fibre core powder, discharge 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, form preform；
(4) drawing optical fibers：Preform is suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, be warming up to 600 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and in phosphate glass rod
As in heart hole2S3The mixture of powder and Se powder melts, and 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, obtain 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 founded：Block phosphate glass is founded using the method for traditional melting-annealing,
By weight percentage, the raw material composition of phosphate glass covering is as follows：
Raw material is weighed by proportioning, is well mixed, is added in corundum crucible and is founded 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, diameter of phi 20mm is processed into,
Long 120mm phosphate glass cylinder, then drill through diameter 3mm circular holes, phosphoric acid 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 well mixed (As2S3Weight
Amount is 27.0%), to be filled into the hole of phosphate glass cylinder of processing, using reasonable than the weight ratio for being 73.0%, Se
Grain size distribution be densified powder, be compacted fibre core powder, discharge 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, form preform；
(4) drawing optical fibers：Preform is suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, be warming up to 625 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and in phosphate glass rod
As in heart hole2S3The mixture of powder and Se powder melts, and 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, obtain 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 founded：Block phosphate glass is founded using the method for traditional melting-annealing,
By weight percentage, phosphate glass covering is that raw material composition is as follows：
Raw material is weighed by proportioning, is well mixed, is added in corundum crucible and is founded 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, diameter of phi 20mm is processed into,
Long 120mm phosphate glass cylinder, then it is drilled with diameter 3mm circular holes, phosphoric acid 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 well mixed (As2S3Weight
Amount is 37.4%), to be filled into the hole of phosphate glass cylinder of processing, using reasonable than the weight ratio for being 62.6%, Se
Grain size distribution be densified powder, be compacted fibre core powder, discharge 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, form preform；
(4) drawing optical fibers：Preform is suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, be warming up to 650 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and in phosphate glass rod
As in heart hole2S3The mixture of powder and Se powder melts, and 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, obtain 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 founded：Block phosphate glass is founded using the method for traditional melting-annealing,
By weight percentage, phosphate glass covering is that raw material composition is as follows：
Raw material is weighed by proportioning, is well mixed, is added in corundum crucible and is founded 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, diameter of phi 20mm is processed into,
Long 120mm phosphate glass cylinder, then it is drilled with diameter 3mm circular holes, phosphoric acid 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 well 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 cylinder of processing, using reasonable
Grain size distribution be densified powder, be compacted fibre core powder, discharge 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, form preform；
(4) drawing optical fibers：Preform is suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, be warming up to 675 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and in phosphate glass rod
As in heart hole2Se3The mixture of powder and S powder melts, and 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, obtain 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 founded：Block phosphate glass is founded using the method for traditional melting-annealing,
By weight percentage, the raw material composition of phosphate glass covering is as follows：
Raw material is weighed by proportioning, is well mixed, is added in corundum crucible and is founded 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, diameter of phi 20mm is processed into,
Long 120mm phosphate glass cylinder, then it is drilled with diameter 3mm circular holes, phosphoric acid 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 well 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 cylinder of processing, using reasonable
Grain size distribution be densified powder, be compacted fibre core powder, discharge powder in gas, rear closed glass pipe both ends, to completely cut off completely
As in hole2Se3The contact of powder and S powder mixtures with air, form preform；
(4) drawing optical fibers：Preform is suspended in the fiber drawing furnace of wire-drawer-tower and carries out wire drawing, be warming up to 700 DEG C of drawings
Optical fiber processed；At this temperature, phosphate glass is in viscous flow state in preform, and in phosphate glass rod
The mixture melting of pozzuolite powder in heart hole, 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, obtain 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 phosphate glass covering prepared by embodiment 1~52SexS3-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 optical fiber prepared by the embodiment 1~5 of table 1
As shown in Table 1, the As of phosphate glass covering prepared by embodiment 1~52SexS3-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 optics, photodetection, the field such as biomedical sensing, infrared laser delivery or super continuum source have huge application before
Scape.
Above example is only preferrred embodiment of the present invention, is only used for explaining the present invention, is not intended to limit the present invention, this
Change that art personnel are made under without departing from spirit of the invention, replacement, modification etc. all should belong to the guarantor of the present invention
Protect scope.
Claims (6)
- A kind of 1. As of phosphate glass covering2SexS3-xTernary semiconductor fibre core composite fiber, it is characterised in that the bag 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.
- A kind of 2. As of phosphate glass covering according to claim 12SexS3-xTernary semiconductor fibre core composite fiber, Characterized in that, the raw material composition of the phosphate glass, by weight percentage, including following component：
- 3. prepare a kind of As of phosphate glass covering described in any one of claim 1 or 22SexS3-xTernary semiconductor fibre core The method of composite fiber, it is characterised in that comprise the following steps：(1) by the raw material of phosphate glass by melting mixing, annealing after, then through over mechanical processing, obtain cylindrical phosphoric acid Salt glass column；After drilling through circular hole along the cylinder axis of cylindrical phosphate glass post, by the appearance of cylindrical phosphate glass post The inner surface polishing of face and wherein circular hole；(2) by As2S3The mixed-powder of powder and Se powder, or As2Se3The mixed-powder of powder and S powder is densely filled into cylindrical phosphorus In the circular hole of silicate glass post, it is compacted and discharges 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 continuous described phosphate glass covering As2SexS3-xTernary semiconductor fibre core composite fiber.
- 4. preparation method according to claim 3, it is characterised in that in step (2), from cylindrical phosphate glass post One end of circular hole to the other end, the particle diameter of the mixed-powder of filling changes for descending grain size distribution, causes mixed-powder Thickly it is filled into the circular hole of cylindrical phosphate glass post.
- 5. preparation method according to claim 3, it is characterised in that in step (3), the temperature of the wire drawing for 600~ 700℃。
- 6. preparation method according to claim 3, it is characterised in that in step (3), the wire drawing is in Ar gas shielded gas Carried out under atmosphere.
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|---|---|---|---|---|
| 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 |
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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 |
|---|
| YANG LI 等: "Physical and Thermal Properties of P2O5-Al2O3-BaO-La2O3 Glasses", 《JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY》 * |
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