CN1259581C - Magneto-optic effect photon crystal fiber and manufacturing method thereof - Google Patents
Magneto-optic effect photon crystal fiber and manufacturing method thereof Download PDFInfo
- Publication number
- CN1259581C CN1259581C CN 200410084284 CN200410084284A CN1259581C CN 1259581 C CN1259581 C CN 1259581C CN 200410084284 CN200410084284 CN 200410084284 CN 200410084284 A CN200410084284 A CN 200410084284A CN 1259581 C CN1259581 C CN 1259581C
- Authority
- CN
- China
- Prior art keywords
- magneto
- fiber
- crystal fiber
- photonic crystal
- plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
- C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
- C03B37/0122—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube for making preforms of photonic crystal, microstructured or holey optical fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers
- C03B2201/36—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers doped with rare earth metals and aluminium, e.g. Er-Al co-doped
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/14—Non-solid, i.e. hollow products, e.g. hollow clad or with core-clad interface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/42—Photonic crystal fibres, e.g. fibres using the photonic bandgap PBG effect, microstructured or holey optical fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The present invention relates to a photonic crystal fiber with magneto optical effect and a manufacturing method thereof. The photonic crystal fiber is composed of a fiber core, a gas hole cladding and a protection layer, wherein the fiber core is made of GeO2 doped with pure quartz for enlarging refractive index, and rare earth of Tb<3+> and Al<3+> for increasing faraday magneto optical effect. The gas hole cladding is a capillary cladding which is composed of capillary quartz tubes with photonic crystal structures in the regular arrangement of a symmetric hexagon. The protection layer is provided with supporting quartz tubes. The preparation of the photonic crystal fiber is divided into three crucial steps: in the first step, a core rod of the photonic crystal fiber doped with rare earth element of terbium is manufactured; in the second step, a performed rod of the photonic crystal fiber is manufactured; in the third step, the photonic crystal fiber with magneto optic effect is drawn. The photonic crystal fiber with magneto optical effect provided by the present invention solves the problems of low magneto optic effect of the optical fiber and large temperature sensitivity puzzling people for a long time. The photonic crystal fiber not only enhances magneto optical effect Verdet constant which is greater than 1.3*10<-5>rad/A, but also causes the heat stability to enhance one to two quantity grades than the conventional optical fiber doped with terbium. The photonic crystal fiber with magneto optical effect provided by the present invention can be widely applied to magneto optical devices of magneto optical isolators, magneto optical modulators, magneto optical switches, etc. in the optical fiber communication field, and sensing optical fibers of optical fiber current mutual inductors, optical fiber magnetic field sensors, etc. in the optical fiber sensing field.
Description
Technical field
The present invention addresses a kind of optical fiber and manufacture method thereof, particularly a kind of magneto-optic effect photon crystal fiber and manufacture method thereof.
Background technology
Photoelectric information functional material is the pillar of advanced information society and the guide of information technology revolution, magneto-optic memory technique is exactly one of photoelectric information functional material, under the effect of his outside magnetic field, thereby can make plane polarization light direction rotate the generation Faraday magnetooptical effect by it, in fields such as magneto optic isolator, magneto-optic modulator, magneto-optic shutter and fibre optic current sensor, have a wide range of applications, and, more and more be subject to people's attention along with the developing rapidly of optical fiber communication and Fibre Optical Sensor.Magneto-optic memory technique is meant the optical information functional material that has magneto-optic effect at visible light and infrared band, and it structurally mainly contains two kinds of forms: magneto-optic bulk material and magneto-optic optical fiber.In the material of these two kinds of forms, people extraordinarily pay close attention to the development of magneto-optic optical fiber, this is because magneto-optic optical fiber as the sensing head parts of magnetic-optic devices in the optical fiber telecommunications system and optical fiber current mutual inductor, has easy connection, flexible good, advantages such as loss is little, full fiberize.
Expense Dare constant is an one of important indicator of weighing the Faraday magnetooptical effect of magneto-optic memory technique, and it is big to take the Dare constant, illustrates that magneto-optic effect is strong.The Verdet constant of general conventional silica fibre is 4.6 * 10
-6Rad/A, its Verdet constant is low obviously.In order to improve the Verdet constant of optical fiber, domestic and international many researchers take to mix in optical fiber method of terbium (Tb) goes to realize.Terbium is a kind of paramagnetic rare-earth element, adds Tb in matrix (quartz or glass) material
3+Raising Verdet constant that can be bigger, Tb mixes in silica fibre
3+Can make the Verdet constant is 2.7 times of conventional silica fibre.Conventional structure doping Tb
3+Magneto-optic effect optical fiber, although improved the Verdet constant,, still be sensitive to the interference of ambient temperature, bending resistance is relatively poor, and loss is higher, and only is easy to make multimode optical fiber, thereby the Mode Coupling effect is arranged, produce the intermode noise, reduce the problems such as polarization state of line polarisation.In addition, because Tb
3+The concentration limit of mixing also is limited so improve the Verdet constant.
Above problems are the difficult point problems of puzzlement magneto-optic optical fibre device and the complete practicability of full optical-fiber current sensing always.Particularly in the application facet of optical fiber current mutual inductor, full fiberize is optimal implementation.Therefore, the magneto-optic effect optical fiber of development raising magneto-optic effect, improvement thermal stability, anti-external environmental interference is the key of dealing with problems.
In order to improve the magneto-optic effect of magneto-optic memory technique, Kahl S. and Grishin A.M. have proposed to strengthen with photon crystal material the method for magneto-optic effect recently, for the problem that we exist more than solving on principle and the structure has been opened the bright door of a fan, they are photonic crystal waveguide structure realization magneto-optic effect functions of forming one dimension with BIG and YIG material with being staggered.Yet this structure and material is difficult for making optical fiber.
Find out thus, seek a kind of novel magneto-optic effect optical fiber, make that it has that the Faraday magneto-optic effect is big, resisting temperature, vibration environment influence be strong, is suitable for the needs of magnetic-optic devices and magnetosensitive sensing, is necessary.
Summary of the invention
The objective of the invention is at problems of the prior art, a kind of magneto-optic effect photon crystal fiber is provided, solve the key technical problem that sensitivity is low, temperature sensitivity is big that puzzlement optical fiber exists in use in the magneto-optic effect field, be the all-fiber current transformator development service of the magnetic-optic devices and the sensory field of optic fibre of fiber optic communication field.Another object of the present invention is according to existing optical fiber preparation technology, aspect the manufacturing technology and technological process of optical fiber, proposes the manufacture method of the magneto-optic effect photon crystal fiber of a cover practical.
The objective of the invention is to realize by following means:
A kind of magneto-optic effect photon crystal fiber is made up of fibre core, pore covering and the protective seam of doped with rare-earth elements, and the material that it is characterized in that fibre core is by pure quartzy a small amount of GeO that increases refractive index that mixes
2With the rare earth Tb that increases Faraday magnetooptical effect
3+, Al
3+Ion is formed, and its chemical composition is counted as weight percents: quartzy 93-98%, germanium dioxide 1-4%, Tb
3+0.7-2%, A1
3+0.3-1%; The material of pore covering is made up of the regularly arranged photon crystal structure capillary quartz ampoule of symmetrical sexangle, and the material of protective seam is made up of pure quartzy stay pipe; Fibre core is positioned at the center of pore covering and protective seam, and protective seam is positioned at outermost layer.
The manufacture method of above-mentioned magneto-optic effect photon crystal fiber, make plug with doped with rare-earth elements, make preform with accumulation, the excellent technology that contracts then, draw out optical fiber with wire drawing machine more at last, it is characterized in that plug is to adopt to improve chemical vapor deposition method and solute doping method doping Tb
3+, Al
3+Ion prepares plug; Make preform with plug and quartz capillary method of piling and the excellent technology that contracts; Carry out drawing optical fiber at last; Its specific embodiment and processing step are as follows:
A. the plug that mixes is made.Adopt improvement chemical vapor deposition method and solute doping legal system to be equipped with the fibre-optical mandrel that mixes;
(1) improves chemical vapor deposition method and make loose sandwich layer: crystal reaction tube is fastened on improves on the chemical vapor deposition lathe,, use high-purity O with 50 rev/mins speed rotation
2Liquid material SiCl
4, GeCl
4Bring in the reaction tube, provide of the direction to-and-fro movement of 800-1000 ℃ of high temperature along reaction tube by the oxyhydrogen flame king light.The raw material that enters reaction tube is oxidation reaction at high temperature, deposition SiO
2-GeO
2Sandwich layer, Yin Wendu are lower than the temperature of melting fully, thereby make sandwich layer form unsintered sandwich layer, and it has opaque loose porous shape;
(2) solute doping method doping Tb
3+, Al
3+Ion: the reaction tube that has loose porous shape sandwich layer, take off, immerse the TbCl that contains 0.05-0.1mol/L from improving the chemical vapor deposition lathe
3AlCl with 0.02-0.05mol/L
3In the alcoholic solution of ratio, soaked 1-2 hour;
(3) improve chemical vapor deposition method and be dehydrated into rod: reaction tube is placed again improve on the chemical vapor deposition lathe, under 500 ℃ of oxyhydrogen flame temperature, feed high-purity C l
2And O
2Mixed gas dehydration, dry half an hour.At last, at 2000 ℃ of oxyhydrogen flame sintering temperature reaction tubes, shrink the plug that becomes transparent magneto-optic effect photon crystal fiber;
B. the making of magneto-optic effect photon crystal fiber prefabricated rods: utilize method of piling to prepare the magneto-optic effect photon crystal fiber prefabricated rods, it is that many quartz capillaries are piled up around the plug of placing the center, put into a big quartzy stay pipe then, clavate becomes preform through contracting:
(1) the English pipe is drawn into the capillary quartz ampoule on wire drawing machine, and their outside dimension is 0.6-1.0mm;
(2) plug is ground or become the size that is complementary with kapillary: 0.6-1.0mm with hydrofluorite (HF) solution corrosion;
(3) select quartzy stay pipe, make it can contain designed kapillary and plug.
(4) pile up placement according to the photonic crystals optical fiber structure that designs.Sexangle rule by symmetry is arranged the capillary quartz ampoule in stay pipe, wherein plug is placed on the center of all capillary quartz ampoules:
(5) fill quartz material in the pore belt of pore belt, capillary quartz ampoule and plug between capillary quartz ampoule and the capillary quartz ampoule and the pore belt between capillary quartz ampoule and the stay pipe, it is reduced because of the gap space due to arranging.
(6) will pile up good structure, and improve the excellent PROCESS FOR TREATMENT that contracts on the chemical vapor deposition bar machine, the temperature of the rod that contracts is 2000 ℃.At last, make it shorten one into and do not pile up air gap, only the quartzy pore of kapillary arranged, diameter is the magneto-optic effect photon crystal fiber prefabricated rods of 9-16mm;
C. the wire drawing of magneto-optic effect photon crystal fiber prefabricated rods: adopt low temperature, technology wire drawing at a slow speed, have good structure to keep with the pore that guarantees prefabricated rods:
(1) in order to reduce the deformation that prefabricated rods takes place under high temperature fused state, whole drawing process should carry out under the condition of low temperature, low speed, draws molten excellent temperature at 1600-1900 ℃, and drawing speed is lower than 200m/min;
(2) on wire drawing machine, online coating ultra-violet curing protective seam.
This method for making can be carried out the relevant parameters design to the aperture and the pitch-row of pore covering according to the requirement of concrete technical parameter.
The characteristic and the advantage of the inventive method are as described below:
(1) photonic crystal fiber can be supported the single mode transport of light in very big frequency range, make the fibre core of magneto-optic effect photon crystal fiber that bigger core diameter be arranged under the single mode situation, so just strengthened the magneto-optic effect of unit length optical fiber, thus improved the optical communication magnetic-optic devices performance, reduced length; Simultaneously, also help improving the sensitivity of Fibre Optical Sensor current transformer.
(2) pore of photonic crystal fiber and lattice dimensions are determining the transmission performance of optical fiber, by regulating these sizes, can change magneto-optic effect, birefringence effect, unimodular property etc. neatly.Simultaneously, can also further improve magneto-optic effect by the doping terbium.
(3) as can be known, temperature will be than low one to two order of magnitude of conventional fiber to the birefringent influence of photonic crystal fiber from existing foreign study achievement.Document in 2004 (Kim Do-Hyun, Kang Jin U.Sagnac Loop InterferometerBased on Polarization Maintaining Photonic Crystal Fiber with Reduced TemperatureSensitivity.Optics Express, 2004,12 (19): 4490-4495) double refractive inde of having surveyed out photonic crystal fiber especially is d n/dT=-2.0 * 10 with the variation of temperature rate
-9/ K; And conventional fiber is d n/dT=-7.0 * 10
-8/ K, than photonic crystal fiber big an order of magnitude many.This just means, if with magneto-optic effect photon crystal fiber as sensing head, it just to around the environment sensitive degree reduce, the performance that helps sensor improves and industrialization.
(4) the macrobend low loss characteristic of photonic crystal fiber will strengthen the ability of anti-deformation of optical fiber greatly, strengthen the antijamming capability of sensor under improper factor.
The principle of the inventive method is as described below:
The invention reside in the Tb that mixes in the fiber cores
3+The structure of ion and photonic crystal improves expense Dare (Verdet) constant and the light characteristic parameter of reflection magneto-optic effect size jointly.
The Faraday magneto-optic effect is meant when linearly polarized light has the material of magneto-optical property by placing magnetic field, the effect that its plane of polarization rotates, and the size of the surfaces of revolution is represented with following formula:
θ
F＝V·L·B (1)
θ in the formula
FBe Faraday magneto-optic effect rotation angle, L is magnetic field and the interactional effective length of magneto-optic memory technique sample media, and B is a magnetic induction density, and V is for taking the Dare constant.The big more explanation of V Faraday magneto-optic effect is strong more in the formula.
When having paramagnetic ion in the magneto-optic memory technique, the expense Dare constant of the paramagnetic material of representing based on quantum mechanics is:
A is the constant with Wavelength-independent in the formula; T is an absolute temperature; Paramagnetic ion number in the N representation unit volume; λ is the incident light wavelength; G is the Lande bundle factor; J measures number at the beginning of the child's hair twisted in a knot-childhood; λ
tEffective transition wavelength of expression electronics; C
tExpression effective mobility probability.Following formula shows: along with paramagnetic ion in the magneto-optic memory technique is counted N and effective transition wavelength λ
tIncrease, take the Dare constant and also will increase.
Rare earth Tb
3+The electronics of ion 4f shell has unpaired free electron, because the shielding action of outer 5s and 5p electron shell, the ligand field is very little to the influence of internal layer 4f electronics.Under the effect in magnetic field, make electronics very easily from 4f
8→ 4f
7The 5d migration increases λ
tThereby, V is increased, produced stronger magneto-optic effect.
Aspect photonic crystal, an important parameter of decision photonic crystal fiber transport property is exactly pore footpath d and the ratio of pitch-row , i.e. d/ Λ, d/ Λ is big, Λ is little, then the through-put power of basic mode strengthens in the fiber cores, and electronics effectively moves probability and increases, and magneto-optic effect also can increase.So, design different d/ Λ values, can obtain magneto-optic effect in various degree.In addition, magneto-optic effect photon crystal fiber has stronger ability of anti-deformation than conventional fiber, and particularly its birefringence temperature sensitivity is than low 1～2 order of magnitude of conventional fiber.Therefore, more help application in optical fiber communication and sensory field of optic fibre.
Description of drawings
Fig. 1 is the prefabricated rods sectional view of the rod that do not contract of one embodiment of the invention
Fig. 2 is the lateral junction composition of the magneto-optic effect photon crystal fiber of the embodiment of the invention.
Embodiment
A preferred embodiment of the present invention is: referring to Fig. 1 and Fig. 2; this magneto-optic effect photon crystal fiber; fibre core (11), pore covering (12) and protective seam (13) by doped with rare-earth elements are formed, and the material of fibre core (11) is by pure quartzy a small amount of germanium dioxide GeO that increases refractive index that mixes
2With the rare earth Tb that increases Faraday magnetooptical effect
3+, Al
3+Ion is formed, and its chemical composition is counted as weight percents: quartzy 93-98%, germanium dioxide 1-4%, Tb
3+0.7-2%, Al
3+0.3-1%; The material of pore covering (12) is formed kapillary covering (2) by the regularly arranged photon crystal structure capillary quartz ampoule (3) of symmetrical sexangle, and protective seam (13) is for supporting quartz ampoule (4).
Each step of the manufacture method of the magneto-optic effect photon crystal fiber of present embodiment:
A. referring to Fig. 1.Making has the reaction tube of loose porous shape sandwich layer on MCVD, and puts into the TbCl that contains 0.08mol/L
3AlCl with 0.04mol/L
3The alcoholic solution of ratio soaked one hour, then on the MCVD bar machine with 500 ℃ of oxyhydrogen flame temperature, use O
2And Cl
2Gas dewatering, the rod that contracts under 2000 ℃ of oxyhydrogen flame temperature at last becomes doping Tb
3+And Al
3+The magneto-optic effect rock quartz core rod (1) of ion, the diameter of plug (1) are 800 μ m, long 300 μ m.
B. referring to Fig. 1.With plug (1) is the center, and the capillary quartz ampoule (3) that is 800 μ m, long 300 μ m to 90 external diameters forms capillary quartz ampoule covering (2) around its regular hexagon structure of being piled into 11 layers on every side.Plug (1) and sexangle capillary quartz ampoule covering (2) are put into the support quartz ampoule (4) of external diameter 25mm, internal diameter 12mm, form the prefabricated rods structure of the rod of piling up with method of piling that do not contract shown in Figure 1.With the space that the quartz material filling forms owing to accumulation, the rod that under 2000 ℃ oxyhydrogen flame temperature, contracts then, become the magneto-optic effect photon crystal fiber prefabricated rods of diameter 12mm.
C. on fiber-pulling machine, with 1800 ℃ molten excellent temperature and the speed wire drawing of 100m/min, obtain the magneto-optic effect photon crystal fiber (10) among Fig. 2, wherein (11) are doping Tb
3+And Al
3+The fibre core of ion, (12) are the pore covering of photon crystal structure, and (13) are protective seam.The hole diameter d=3.2 μ m of this structure, pitch-row Λ=5.6 μ m, pore and pitch-row so than d/ Λ=0.57.
The rare earth doped concentration of this method, core diameter, pore footpath, pitch-row, cladding diameter can be done corresponding design and making according to the requirement of concrete magneto-optic effect photon crystal fiber.
Claims (2)
1. a magneto-optic effect photon crystal fiber is made up of fibre core (11), pore covering (12) and the protective seam (13) of doped with rare-earth elements, and the material that it is characterized in that fibre core (11) is by pure quartzy a small amount of GeO that increases refractive index that mixes
2With the rare earth Tb that increases Faraday magnetooptical effect
3+, Al
3+Ion is formed, and its chemical composition is counted as weight percents: quartzy 93-98%, germanium dioxide 1-4%, Tb
3+0.7-2%, Al
3+0.3-1%; The material of pore covering (12) is made up of the regularly arranged photon crystal structure capillary quartz ampoule of symmetrical sexangle, and the material of protective seam (13) is made up of pure quartzy stay pipe; Fibre core (11) is positioned at the center of pore covering (12) and protective seam (13), and protective seam (13) is positioned at outermost layer.
2. the manufacture method of a magneto-optic effect photon crystal fiber according to claim 1, make plug with doped with rare-earth elements, make preform with accumulation, the excellent technology that contracts then, draw out optical fiber with wire drawing machine more at last, it is characterized in that plug is to adopt to improve chemical vapor deposition method and solute doping method doping Tb
3+, Al
3+Ion prepares plug; Make preform with plug and quartz capillary method of piling and the excellent technology that contracts; Carry out drawing optical fiber at last; Its specific embodiment and processing step are as follows:
A. the plug that mixes is made: adopt improvement chemical vapor deposition method and solute doping legal system to be equipped with the fibre-optical mandrel that mixes;
(1) improves chemical vapor deposition method and make loose sandwich layer: crystal reaction tube is fastened on improves on the chemical vapor deposition lathe,, use high-purity O with 50 rev/mins speed rotation
2Liquid material SiCl
4, GeCl
4Bring in the reaction tube, provide of the direction to-and-fro movement of 800-1000 ℃ of high temperature along reaction tube by the oxyhydrogen flame king light; The raw material that enters reaction tube is oxidation reaction at high temperature, deposition SiO
2-GeO
2Sandwich layer, Yin Wendu are lower than the temperature of melting fully, thereby make sandwich layer form unsintered sandwich layer, and it has opaque loose porous shape;
(2) solute doping method doping Tb
3+, Al
3+Ion: the reaction tube that has loose porous shape sandwich layer, take off, immerse the TbCl that contains 0.05-0.1mol/L from improving the chemical vapor deposition lathe
3AlCl with 0.02-0.05mol/L
3In the alcoholic solution of ratio, soaked 1-2 hour;
(3) improve chemical vapor deposition method and be dehydrated into rod: reaction tube is placed again improve on the chemical vapor deposition lathe, under 500 ℃ of oxyhydrogen flame temperature, feed high-purity C l
2And O
2Mixed gas dehydration, dry half an hour; At last, at 2000 ℃ of oxyhydrogen flame sintering temperature reaction tubes, shrink the plug that becomes transparent magneto-optic effect photon crystal fiber;
B. the making of magneto-optic effect photon crystal fiber prefabricated rods: utilize method of piling to prepare the magneto-optic effect photon crystal fiber prefabricated rods, it is that many quartz capillaries are piled up around the plug of placing the center, put into a big quartzy stay pipe then, clavate becomes preform through contracting:
(1) quartz ampoule is drawn into the capillary quartz ampoule on wire drawing machine, and their outside dimension is 0.6-1.0mm;
(2) plug is ground or become the size that is complementary with kapillary: 0.6-1.0mm with hydrofluorite (HF) solution corrosion;
(3) select quartzy stay pipe, make it can contain designed kapillary and plug;
(4) pile up placement according to the photonic crystals optical fiber structure that designs; Sexangle rule by symmetry is arranged the capillary quartz ampoule in stay pipe, wherein plug is placed on the center of all capillary quartz ampoules;
(5) fill quartz material in the pore belt of pore belt, capillary quartz ampoule and plug between capillary quartz ampoule and the capillary quartz ampoule and the pore belt between capillary quartz ampoule and the stay pipe, it is reduced because of the gap space due to arranging;
(6) will pile up good structure, and improve the excellent PROCESS FOR TREATMENT that contracts on the chemical vapor deposition bar machine, the temperature of the rod that contracts is 2000 ℃; At last, make it shorten one into and do not pile up air gap, only the quartzy pore of kapillary arranged, diameter is the magneto-optic effect photon crystal fiber prefabricated rods of 9-16mm;
C. the wire drawing of magneto-optic effect photon crystal fiber prefabricated rods: adopt low temperature, technology wire drawing at a slow speed, have good structure to keep with the pore that guarantees prefabricated rods:
(1) in order to reduce the deformation that prefabricated rods takes place under high temperature fused state, whole drawing process should carry out under the condition of low temperature, low speed, draws molten excellent temperature at 1600-1900 ℃, and drawing speed is lower than 200m/min;
(2) on wire drawing machine, online coating ultra-violet curing protective seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410084284 CN1259581C (en) | 2004-11-18 | 2004-11-18 | Magneto-optic effect photon crystal fiber and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410084284 CN1259581C (en) | 2004-11-18 | 2004-11-18 | Magneto-optic effect photon crystal fiber and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1605894A CN1605894A (en) | 2005-04-13 |
| CN1259581C true CN1259581C (en) | 2006-06-14 |
Family
ID=34765845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410084284 Expired - Fee Related CN1259581C (en) | 2004-11-18 | 2004-11-18 | Magneto-optic effect photon crystal fiber and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1259581C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210977B (en) * | 2006-12-25 | 2012-06-20 | 株式会社藤仓 | Photon band-gap optical fiber and method of manufacturing same |
| CN102354019B (en) * | 2011-11-11 | 2013-07-31 | 烽火通信科技股份有限公司 | Bent non-sensitive micro-structured optical fiber and production method thereof |
| CN102401933A (en) * | 2011-11-21 | 2012-04-04 | 武汉虹拓新技术有限责任公司 | Totally doped photonic crystal fiber and preparation method thereof |
| CN103869507B (en) * | 2012-12-07 | 2017-09-01 | 高值光电股份有限公司 | Faraday rotator and isolator |
| CN104880763A (en) * | 2014-02-28 | 2015-09-02 | 苏州福瑞互感器有限公司 | Method of preparing leadoxide doped quartz fibers for measuring heavy current sensor |
| WO2016095923A1 (en) | 2014-12-18 | 2016-06-23 | Nkt Photonics A/S | A photonic crystal fiber, a method of production thereof and a supercontinuum light source |
| CN106082684B (en) * | 2016-06-11 | 2019-07-16 | 华南理工大学 | A kind of highly doped Tb3+Phosphate glass core composite material fiber and preparation method thereof |
| CN108267631A (en) * | 2016-12-30 | 2018-07-10 | 湾世伟 | A kind of electronic type all-fiber current transformator using high magneto-optic coefficient sensor fibre |
| CN107151092B (en) * | 2017-04-19 | 2019-09-27 | 哈尔滨工程大学 | A kind of preparation method and doped single crystal multi-core optical fiber of doped single crystal multi-core optical fiber |
| CN107651856A (en) * | 2017-10-20 | 2018-02-02 | 河南工业大学 | The low temperature preparation method and sign of a kind of magneto-optic glass fiber |
| CN108646340A (en) * | 2018-05-09 | 2018-10-12 | 浙江大学 | A kind of special optical fiber of highfield sensitivity |
| CN109298481B (en) * | 2018-10-09 | 2019-09-10 | 东北大学 | The metallic silver filling photonic crystal fiber and its preparation method of spontaneous generation SPR effect |
| CN109856720B (en) * | 2019-01-16 | 2020-10-23 | 深圳太辰光通信股份有限公司 | Preparation method of magneto-optical fiber with high Verdet constant |
| CN109912193A (en) * | 2019-03-19 | 2019-06-21 | 中国电力科学研究院有限公司 | Photonic crystal fiber and preparation method thereof |
| CN111913024A (en) * | 2019-05-08 | 2020-11-10 | 湾晓文 | High magneto-optical coefficient optical fiber capable of improving performance of all-fiber current transformer |
| CN113625477A (en) * | 2020-05-09 | 2021-11-09 | 中天科技光纤有限公司 | Optical isolator |
| CN111948751B (en) * | 2020-08-03 | 2022-09-02 | 哈尔滨工业大学 | Design method of optical fiber current transformer optical fiber sensing ring based on 650nm wave band |
-
2004
- 2004-11-18 CN CN 200410084284 patent/CN1259581C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1605894A (en) | 2005-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1259581C (en) | Magneto-optic effect photon crystal fiber and manufacturing method thereof | |
| KR0172600B1 (en) | Single-mode, single polarization optical fiber | |
| Yeh | Handbook of fiber optics: Theory and applications | |
| Maurer | Glass fibers for optical communications | |
| Ballato et al. | Fabrication of fibers with high rare-earth concentrations for Faraday isolator applications | |
| Ramaswamy et al. | Birefringence in elliptically clad borosilicate single-mode fibers | |
| US3756690A (en) | Optical waveguide light modulator | |
| Ainslie et al. | Interplay of design parameters and fabrication conditions on the performance of monomode fibers made by MCVD | |
| CN100509672C (en) | Nano-quantum point optical fiber and manufacturing method thereof | |
| KR830005577A (en) | Credit Index Optical Waveguide Filament | |
| Chen et al. | Properties and structure of Faraday rotating glasses for magneto optical current transducer | |
| MacChesney et al. | Low‐loss silica core‐borosilicate clad fiber optical waveguide | |
| CN110045456A (en) | A kind of single mode optical fiber and preparation method thereof of ultra-low loss large effective area | |
| Lazay et al. | Developments in single-mode fiber design, materials, and performance at Bell Laboratories | |
| CN1243259C (en) | Rare-earth doped photon crystal optical fiber | |
| CN102126825B (en) | Radiation-resistant high-performance silica fiber and preparation method thereof | |
| CN102981212A (en) | Photonic bandgap fiber | |
| CN1291254C (en) | Double-refraction microstructure optical fiber and its mfg. method | |
| US20090218706A1 (en) | Method of manufacturing photonic bandgap fibre | |
| CN107651856A (en) | The low temperature preparation method and sign of a kind of magneto-optic glass fiber | |
| Shibata et al. | Fluorine and chlorine effects on radiation-induced loss for GeO 2-doped silica optical fibers | |
| Kudinova et al. | Multimaterial polarization maintaining optical fibers fabricated with the powder-in-tube technology | |
| WO2003093884A2 (en) | A method and apparatus relating to optical fibres | |
| CN109856720B (en) | Preparation method of magneto-optical fiber with high Verdet constant | |
| JPS6280606A (en) | Single mode optical fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060614 Termination date: 20101118 |