CN1654387A - Photonic crystal fiber and its preparation method - Google Patents

Photonic crystal fiber and its preparation method Download PDF

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Publication number
CN1654387A
CN1654387A CN 200510032662 CN200510032662A CN1654387A CN 1654387 A CN1654387 A CN 1654387A CN 200510032662 CN200510032662 CN 200510032662 CN 200510032662 A CN200510032662 A CN 200510032662A CN 1654387 A CN1654387 A CN 1654387A
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glass
photonic crystal
crystal fiber
ion
fiber
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邓再德
杨钢锋
张伟南
张勤远
姜中宏
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South China University of Technology SCUT
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South China University of Technology SCUT
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    • 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
    • C03B2201/34—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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/80—Non-oxide glasses or glass-type compositions
    • 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

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  • 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 provides one kind of photon crystal fiber and its preparation process. The photon crystal fiber is prepared through twice drawing in a prefabricated rod monolithic combining process. The photon crystal fiber has matrix material including oxide glass or non-oxide glass, and core area including the components of Er ion, Yb ion, Tm ion, Pr ion, Ho ion or Nd ion doped in the concentration of 2000-8000 ppm. The preparation process is simple, high in fiber quality, high in output power, and refractivity adjustable in 1.45-2.50. The photon crystal fiber may be used in high power fiber amplifier and high power fiber laser capable of realizing active output in more waveband and finding wide application in laser processing, laser medical treatment, laser communication, etc.

Description

A kind of photonic crystal fiber and preparation method thereof
Technical field
The present invention relates to the optical fiber technology field, particularly a kind of photonic crystal fiber and preparation method thereof.
Background technology
Photonic crystal fiber (Photonic Crystal Fiber, PCF), microstructured optical fibers or porous optical fiber are otherwise known as, it is a kind of novel optical fiber that causes extensive concern in recent years, complicated index distribution is arranged on its cross section, usually the covering of this type optical fiber is the even pore structure that forms on the regular grid node in substrate material, the fiber cores district is the defect area that the hole disappearance forms on the regular grid node in the substrate material, covering contains the hole of running through of different spread patterns whole optical fiber, the yardstick in these holes and optical wavelength are roughly in same magnitude, and light wave can be limited in the fiber cores district and propagate.
In recent years, photonic crystal fiber is used as active adulterated carrier, and has introduced the double clad structure, and its application makes some performance of optical fiber laser be significantly improved.At present, existing abroad output rating reaches report (Schreiber, the T. of the photon crystal optical laser device of several hectowatts, Limpert, J., Liem, A., Roser, F., Nolte, S., Zellmer, H., Tunnermann, A., High power photonic crystal fiber lasersystems, ICTON 2004,131～135).But obtain more high-power photon crystal optical laser device, the rare earth ion of enough high densitys of in optical fiber, must mixing.But nearly all photonic crystal fiber is substrate material with the quartz all at present, and based on quartzy self-characteristic, the doping content of rare earth ion in quartz has only hundreds of ppm, in actual applications, restricted the raising of optical fiber laser output rating.In addition, though quartzy photonic crystal fiber adopts other ionic silica glass that mixes in core region, the specific refractory power setting range is still very narrow.
At present, existing photonic crystal fiber making method is that the prefabricated rods that is formed by a branch of Glass tubing is carried out wire drawing, the method that adopts as Southampton, Britain university is: (1) will make the hexagonal lattice unit of macro-size along the hole of the quartz pushrod drill diameter 16mm of diameter 30mm; (2) extrude six faces in quartz pushrod outside, the hexagonal structure of formation rule: the rod that (3) will make is drawn into the hexagon filament that diameter is 0.8mm, and filament cut into equal length and is stacked together, in order to making needed optical fiber structure; (4) the filament wire drawing again that will stack by hexagonal structure is melted in together the filament of accumulation and can makes above-mentioned lattice be reduced to about 50 μ m; (5), produce final optical fiber (Mao Wenjuan, prince China, " principle of photonic crystal fiber, application and making ", " fiber optic materials ", 2003,11:41～43) with such accumulation rod wire drawing once more.Yet this method needs may destroy the structure of matrix material of optic fibre, and might make the cyclic array of covering mesopore produce defective through stringy heat treatment process repeatedly.
Summary of the invention
Purpose of the present invention is exactly for shortcoming that overcomes prior art and problem, and a kind of doping concentration of rare earth ion height is provided, the preparation method of the multicomponent glass photonic crystal fiber that the specific refractory power setting range is wide.
The photonic crystal fiber that provides a kind of above-mentioned preparation method to make is provided.
Purpose of the present invention is achieved through the following technical solutions: the preparation method of this photonic crystal fiber is characterized in that comprising the steps and processing condition:
The first step: along its axial drilling, the substrate material of described glass preform comprises oxide glass or nonoxide glass with glass preform;
Second step: this glass stick is polished into the prefabricated rods single module, and the shape of described prefabricated rods single module comprises regular hexagon, square, circle;
The 3rd step: this prefabricated rods single module is drawn into thin rod and cuts into equal length in fiber drawing tower;
The 4th goes on foot: the thin rod after many undercuts are cut is arranged accumulation, and it is placed in the identical Glass tubing of substrate material, and careful rod replaced during adopted its central zone, formed the fiber cores district;
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter with the wire drawing once more of the thin rod of described accumulation.
Described bore mode is ultrasonic drilling, machine drilling.
Careful rod comprises glass hollow bar or glass solid bar in described, and its substrate material comprises oxide glass or nonoxide glass.
The component of described glass solid bar comprises rare earth ion, and the doping content of described rare earth ion is 2000～8000ppm, and described rare earth ion comprises erbium ion, ytterbium ion, thulium ion, praseodymium ion, holmium ion or neodymium ion.
Described oxide glass comprises silicate glass, phosphate glass, tellurate glass, and described nonoxide glass comprises fluoride glass.
The diameter in the hole of described glass hollow bar, arrangement, quantity are determined by the designed fibre core defective of photonic crystal fiber.
Photonic crystal fiber of the present invention makes by above-mentioned photonic crystal fiber preparation method.
According to the design requirements of conventional photonic crystal fiber, the diameter of described glass preform can be 10mm～50mm, and the diameter in described hole can be 1mm～12mm, and quantity can be 1～40, and arrangement mode can be regular hexagon, square, circle.
The present invention compared with prior art has following advantage and beneficial effect:
(1) output rating height, ranges of indices of refraction is wide, photonic crystal fiber of the present invention, the doping content of its fiber cores district rare earth ion, than high 1～2 order of magnitude in quartzy photonic crystal fiber, can effectively improve the active output rating of optical fiber, and different rare earth ions can be realized different wavelength of laser output, the wavelength region of the laser output of photonic crystal fiber of the present invention can cover can see near infrared region, and specific refractory power can be adjusted variation continuously in 1.45～2.50 scope.
(2) preparation method is simple, and optical fiber quality is good, relatively three stringy methods of Southampton, Britain university employing, photonic crystal fiber preparation method of the present invention is a prefabricated rods single module combined method, only need twice wire drawing, reduce the possibility that repeatedly thermal treatment produces textural defect, simple and reliable.
(3) applied range, the characteristic of photonic crystal fiber of the present invention makes it can use in a lot of scopes, comprise and be used as high-power fiber amplifier and high-capacity optical fiber laser, mix and to realize more multiwave active output behind the different rare earth ions, great application prospect is arranged at aspects such as laser processing, laser medicine, laser communications.
Description of drawings
Fig. 1 is a kind of cross sectional representation of prefabricated rods single module of the present invention.
Fig. 2 is a kind of cross sectional representation of photonic crystal fiber of the present invention.
Fig. 3 is second kind of cross sectional representation of prefabricated rods single module of the present invention.
Fig. 4 is second kind of cross sectional representation of photonic crystal fiber of the present invention.
Fig. 5 is the third cross sectional representation of prefabricated rods single module of the present invention.
Fig. 6 is the third cross sectional representation of photonic crystal fiber of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment one
The cross section of prefabricated rods single module adopts shape shown in Figure 1, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 30mm glass preform is axially used 7 of ultrasonic drillings along it, and the diameter in hole is 3mm, and the substrate material of glass preform is a silicate glass, and its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O;
Second step: this glass preform is polished into prefabricated rods module 1, and as shown in Figure 1, the shape of prefabricated rods module 1 is a regular hexagon, the length of side is 15mm, and the diameter in hole 2 is 3mm, and one is positioned at the module centers position, all the other six uniform distribution are around it, and spacing 3 is 6mm;
The 3rd step: this prefabricated rods module 1 is drawn into the thin rod that the length of side is 0.5mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 99 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is silicate glass, its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O, in the hollow glass tube of diameter 12.5mm, it is silicate glass that substrate material is adopted in its central zone, its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2The glass hollow bar of O replaces, and it has only a diameter is the centre hole of 0.6mm, forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 2, aperture 4 diameters that are drawn into photonic crystal fiber are 1 μ m, and pitch of holes 5 is 2 μ m, and the big bore portion in center is the fiber cores district, and macropore 6 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.
Embodiment two
The cross section of prefabricated rods single module adopts shape shown in Figure 1, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 30mm glass preform is axially used 7 of machine drillings along it, and the diameter in hole is 3mm, and the substrate material of glass preform is a silicate glass, and its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O;
Second step: this glass preform is polished into prefabricated rods module 1, and as shown in Figure 1, the shape of prefabricated rods module 1 is a regular hexagon, the length of side is 15mm, and the diameter in hole 2 is 3mm, and one is positioned at the module centers position, all the other six uniform distribution are around it, and spacing 3 is 6mm;
The 3rd step: this prefabricated rods module 1 is drawn into the thin rod that the length of side is 0.5mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 99 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is silicate glass, its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O, in the hollow glass tube of diameter 12.5mm, it is silicate glass that substrate material is adopted in its central zone, its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O, the doping content of neodymium ion is that the glass solid bar of 2000ppm replaces, and forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 2, aperture 4 diameters that are drawn into photonic crystal fiber are 1 μ m, and pitch of holes 5 is 2 μ m, and fiber cores district 6 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.
Embodiment three
The cross section of prefabricated rods single module adopts shape shown in Figure 3, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 45mm glass preform is axially used 5 of ultrasonic drillings along it, and the diameter in hole is 3mm, and the substrate material of glass preform is a phosphate glass, and its composition is: 62P 2O 5-16K 2O-12BaO-8Al 2O 3-2La 2O 3
Second step: this glass preform is polished into prefabricated rods module 7, as shown in Figure 3, the shape of prefabricated rods module 7 is squares, the length of side is 30mm, the diameter in hole 8 is 3mm, and 1 is positioned at the module centers position, and all the other 4 uniform distribution are around it, straight flange spacing 9 is 12mm, and side opposite the angle spacing 10 is 7.61mm;
The 3rd step: this prefabricated rods module 7 is drawn into the thin rod that the length of side is 1mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 96 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is phosphate glass, its composition is: 62P 2O 5-16K 2O-12BaO-8Al 2O 3-2La 2O 3, in the Glass tubing of diameter 12.5mm, it is phosphate glass that substrate material is adopted in its central zone, its composition is: 62P 2O 5-16K 2O-12BaO-8Al 2O 3-2La 2O 3, the doping content of ytterbium ion is that the glass solid bar of 5000ppm replaces, and forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 4, aperture 11 diameters that are drawn into photonic crystal fiber are 1 μ m, and hole straight flange spacing 12 is 4 μ m, and side opposite the angle spacing 13 is 2.54 μ m, and fiber cores district 14 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.
Implement four
The cross section of prefabricated rods single module adopts shape shown in Figure 3, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 45mm glass preform is axially used 5 of ultrasonic drillings along it, and the diameter in hole is 3mm, and the substrate material of glass preform is a silicate glass, and its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O;
Second step: this glass preform is polished into prefabricated rods module 7, as shown in Figure 3, the shape of prefabricated rods module 7 is squares, the length of side is 30mm, the diameter in hole 8 is 3mm, and 1 is positioned at the module centers position, and all the other 4 uniform distribution are around it, straight flange spacing 9 is 12mm, and side opposite the angle spacing 10 is 7.61mm;
The 3rd step: this prefabricated rods module 7 is drawn into the thin rod that the length of side is 1mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 96 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is silicate glass, its composition is: 69SiO 2-11B 2O 3-3BaO-6.5K 2O-10.5Na 2O, in the Glass tubing of diameter 12.5mm, it is phosphate glass that substrate material is adopted in its central zone, its composition is: 62P 2O 5-16K 2O-12BaO-8Al 2O 3-2La 2O 3, the doping content of erbium ion is that the glass solid bar of 6000ppm replaces, and forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 4, aperture 11 diameters that are drawn into photonic crystal fiber are 1 μ m, and hole straight flange spacing 12 is 4 μ m, and side opposite the angle spacing 13 is 2.54 μ m, and fiber cores district 14 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.
Embodiment five
The cross section of prefabricated rods single module adopts shape shown in Figure 5, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 30mm glass preform is axially used 9 of ultrasonic drillings along it, and bore dia is 3mm, and the substrate material of glass preform is a tellurate glass, and its composition is: 65TeO 2-5GeO 2-10Nb 2O 5-10Li 2O-10Na 2O;
Second step: this glass preform is polished into prefabricated rods module 15, and as shown in Figure 5, the shape of prefabricated rods module 15 is circular, the diameter in hole 16 is 3mm, and 1 is positioned at the module centers position, and all the other 8 uniform distribution are around it, radial spacing 17 is 7.5mm, and circumferentially spacing 18 is 5.04mm;
The 3rd step: this prefabricated rods module 15 is drawn into the thin rod that diameter is 1mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 99 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is tellurate glass, its composition is: 65TeO 2-5GeO 2-10Nb 2O 5-10Li 2O-10Na 2O, in the Glass tubing of diameter 12.5mm, it is tellurate glass that substrate material is adopted in its central zone, its composition is: 65TeO 2-5GeO 2-10Nb 2O 5-10Li 2O-10Na 2O, the doping content of thulium ion is that the glass solid bar of 7000ppm replaces, and forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 6, aperture 19 diameters that are drawn into photonic crystal fiber are 1 μ m, and the aperture is 2.5 μ m to spacing 20, and circumferentially spacing 21 is 1.68 μ m, and fiber cores district 22 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.
Embodiment six
The cross section of prefabricated rods single module adopts shape shown in Figure 5, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 30mm glass preform is axially used 9 of ultrasonic drillings along it, and bore dia is 3mm, and the substrate material of glass preform is a tellurate glass, and its composition is: 65TeO 2-5GeO 2-10Nb 2O 5-10Li 2O-10Na 2O;
Second step: this glass preform is polished into prefabricated rods module 15, and as shown in Figure 5, the shape of prefabricated rods module 15 is circular, the diameter in hole 16 is 3mm, and 1 is positioned at the module centers position, and all the other 8 uniform distribution are around it, radial spacing 17 is 7.5mm, and circumferentially spacing 18 is 5.04mm;
The 3rd step: this prefabricated rods module 15 is drawn into the thin rod that diameter is 1mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 99 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is tellurate glass, its composition is: 65TeO 2-5GeO 2-10Nb 2O 5-10Li 2O-10Na 2O, in the Glass tubing of diameter 12.5mm, it is tellurate glass that substrate material is adopted in its central zone, its composition is: 65TeO 2-5GeO 2-10Nb 2O 5-10Li 2O-10Na 2O, the doping content of holmium ion is that the glass solid bar of 8000ppm replaces, and forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 6, aperture 19 diameters that are drawn into photonic crystal fiber are 1 μ m, and the aperture is 2.5 μ m to spacing 20, and circumferentially spacing 21 is 1.68 μ m, and fiber cores district 22 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.
Embodiment seven
The cross section of prefabricated rods single module adopts shape shown in Figure 5, and this photonic crystal fiber preparation method comprises the steps and processing condition:
The first step: a diameter 30mm glass preform is axially used 9 of ultrasonic drillings along it, and bore dia is 3mm, and the substrate material of glass preform is a fluoride glass, and its composition is: 53ZrF 4-20BaF 2-4LaF 3-5AlF 3-18NaF;
Second step: this glass preform is polished into prefabricated rods module 15, and as shown in Figure 5, the shape of prefabricated rods module 15 is circular, the diameter in hole 16 is 3mm, and 1 is positioned at the module centers position, and all the other 8 uniform distribution are around it, radial spacing 17 is 7.5mm, and circumferentially spacing 18 is 5.04mm;
The 3rd step: this prefabricated rods module is drawn into the thin rod that diameter is 1mm in fiber drawing tower, and cuts into the thin rod that length is 100mm;
The 4th step: 99 thin rods are arranged accumulation by design requirements, and it is placed in substrate material is fluoride glass, its composition is: 53ZrF 4-20BaF 2-4LaF 3-5AlF 3-18NaF, in the Glass tubing of diameter 12.5mm, it is fluoride glass that substrate material is adopted in its central zone, its composition is: 53ZrF 4-20BaF 2-4LaF 3-5AlF 3-18NaF, the doping content of praseodymium ion is that the glass solid bar of 8000ppm replaces, and forms the fiber cores district.
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter 125 μ m with the thin rod wire drawing once more that above-mentioned arrangement is piled up.As shown in Figure 6, aperture 19 diameters that are drawn into photonic crystal fiber are 1 μ m, and the aperture is 2.5 μ m to spacing 20, and circumferentially spacing 21 is 1.68 μ m, and fiber cores district 22 diameters are 6 μ m.
As stated above, can make this photonic crystal fiber.

Claims (6)

1, the preparation method of this photonic crystal fiber is characterized in that comprising the steps and processing condition:
The first step: along its axial drilling, the substrate material of described glass preform comprises oxide glass or nonoxide glass with glass preform;
Second step: this glass stick is polished into the prefabricated rods single module, and the shape of described prefabricated rods single module comprises regular hexagon, square, circle;
The 3rd step: this prefabricated rods single module is drawn into thin rod and cuts into equal length in fiber drawing tower;
The 4th goes on foot: the thin rod after many undercuts are cut is arranged accumulation, and it is placed in the identical Glass tubing of substrate material, and careful rod replaced during adopted its central zone, formed the fiber cores district;
The 5th step:, promptly be drawn into the photonic crystal fiber of normal diameter with the wire drawing once more of the thin rod of described accumulation.
2, by the described photonic crystal fiber preparation method of claim 1, it is characterized in that: described bore mode is ultrasonic drilling, machine drilling.
3, by the described photonic crystal fiber preparation method of claim 1, it is characterized in that: careful rod comprises glass hollow bar or glass solid bar in described, and its substrate material comprises oxide glass or nonoxide glass.
4, by the described photonic crystal fiber preparation method of claim 3, it is characterized in that: the component of described glass solid bar comprises rare earth ion, the doping content of described rare earth ion is 2000～8000ppm, and described rare earth ion comprises erbium ion, ytterbium ion, thulium ion, praseodymium ion, holmium ion or neodymium ion.
5, by claim 1 or 3 described photonic crystal fiber preparation methods, it is characterized in that: described oxide glass comprises silicate glass, phosphate glass, tellurate glass, and described nonoxide glass comprises fluoride glass.
6, a kind of photonic crystal fiber, described photonic crystal fiber preparation method makes by claim 1.
CN 200510032662 2005-01-04 2005-01-04 Photonic crystal fiber and its preparation method Pending CN1654387A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999380B (en) * 2006-12-27 2010-09-29 南京邮电大学 Photon crystal optical fiber premade rod made by calculating holographic method and its making method
CN101694534B (en) * 2009-10-22 2011-02-16 北京交通大学 Single-core multiple rare-earth-doped ion region double-clad optical fiber and manufacturing method thereof
CN103487879A (en) * 2013-09-23 2014-01-01 北京工业大学 Seven-core photonic crystal fiber for restraining high-order super-mode output
CN109081576A (en) * 2017-06-14 2018-12-25 中天科技精密材料有限公司 Preform and its manufacturing method
CN109839693A (en) * 2018-12-12 2019-06-04 桂林电子科技大学 A kind of periodic structure deformation type fiber bragg grating device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100999380B (en) * 2006-12-27 2010-09-29 南京邮电大学 Photon crystal optical fiber premade rod made by calculating holographic method and its making method
CN101694534B (en) * 2009-10-22 2011-02-16 北京交通大学 Single-core multiple rare-earth-doped ion region double-clad optical fiber and manufacturing method thereof
CN103487879A (en) * 2013-09-23 2014-01-01 北京工业大学 Seven-core photonic crystal fiber for restraining high-order super-mode output
CN103487879B (en) * 2013-09-23 2015-08-05 北京工业大学 A kind of seven core photonic crystal fibers suppressing high-order super model to export
CN109081576A (en) * 2017-06-14 2018-12-25 中天科技精密材料有限公司 Preform and its manufacturing method
CN109081576B (en) * 2017-06-14 2021-05-14 中天科技精密材料有限公司 Optical fiber preform and method for manufacturing the same
CN109839693A (en) * 2018-12-12 2019-06-04 桂林电子科技大学 A kind of periodic structure deformation type fiber bragg grating device

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