CN106990475A - New wavelength Double Cladding Ytterbium Doped Fiber and preparation method - Google Patents
New wavelength Double Cladding Ytterbium Doped Fiber and preparation method Download PDFInfo
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- CN106990475A CN106990475A CN201710354230.1A CN201710354230A CN106990475A CN 106990475 A CN106990475 A CN 106990475A CN 201710354230 A CN201710354230 A CN 201710354230A CN 106990475 A CN106990475 A CN 106990475A
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- sandwich layer
- doped fiber
- double cladding
- new wavelength
- ytterbium doped
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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
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
-
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
-
- 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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
-
- 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
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/48—Coating with two or more coatings having different compositions
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
- G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
- G02B6/03688—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 5 or more layers
Abstract
The invention discloses a kind of new wavelength Double Cladding Ytterbium Doped Fiber and preparation method, it is related to special optical fiber and plug manufacture field.This method comprises the following steps：Using MCVD, raw material is passed through, in quartz reaction inside pipe wall deposition first layer SiO2Weaker zone；Using solution infusion method, progress is rare earth ion doped, and by liquid injection pipe, solution is poured into crystal reaction tube to the region for having loose Rotating fields；Rotated after crystal reaction tube is erect, solution immersion a period of time；Stop the rotation, minimally invasive cutting is carried out below crystal reaction tube, is let the liquid out；High pure nitrogen is passed through, is rotated, dehydration；SiO after solution is soaked2Weaker zone is sintered, deposition second layer SiO2Weaker zone, repeats above-mentioned liquid phase doping, sintering step once；By crystal reaction tube collapsing into solid bar, plug, then wire drawing are obtained, new wavelength Double Cladding Ytterbium Doped Fiber is obtained.High power, high stable can be realized directly output wavelength is 1018nm laser to the present invention.
Description
Technical field
The present invention relates to special optical fiber and plug manufacture field, be specifically related to a kind of new wavelength Double Cladding Ytterbium Doped Fiber and
Preparation method.
Background technology
In recent years, pursue optical fiber laser it is high-power during, fuel factor be increasingly becoming one greatly restriction because
Element, except improve pumping light coupled modes with reduce coupling thermal losses in addition to, the heat problem brought by the loss of optical fiber in itself,
Equally have influence on the steady running of laser.Use the pumping using wavelength as 1018nm as pumping source, excitation wavelength is
1070nm laser, this technology is referred to as with band pumping.Compared to pumping of the wavelength for 975nm pumping, wavelength is
When 1018nm pumping pump wavelength is 1070nm laser, Excited state is small, there is great advantage in terms of heat management.Same band
Pumping pumping can reduce the Excited state of optical fiber laser, so as to reduce the influence of fuel factor.
Because the Excited state rate of laser is η=1- (h v1/h v2) (h is Planck's constant, v1For laser frequency,
v2For pumping frequency).The laser that the pumping pump wavelength for being 975nm with wavelength is 1070nm, its Excited state rate is 9%：And
During the pumping pumping for being 1018nm with wavelength, Excited state rate is less than 5%, and low quantum number defect can efficiently reduce heat and ask
Topic.In addition, can effectively suppress high-order mode gain with band pumping, single mode laser is contributed to export.
Conceptual phase is still within present with band pump technology, and one of the difficult point of research is that it is 1018nm's to lack wavelength
High power pump is as pumping source, and wavelength is also placed on device power for most of 1018nm research of high power pump and put
In big structure, the research for gain media is extremely deficient.When existing optical fiber wants the laser that output wavelength is 1018nm, need
Will be by a series of devices such as grating, bundling device, it is impossible to realize the laser that direct output wavelength is 1018nm.
The content of the invention
The invention aims to overcome the shortcomings of above-mentioned background technology, there is provided a kind of new wavelength Double Cladding Ytterbium Doped Fiber
And preparation method, directly output wavelength is 1018nm laser with can realizing high power, high stable.
The present invention provides a kind of preparation method of new wavelength Double Cladding Ytterbium Doped Fiber, comprises the following steps：
The optical fiber include be arranged in order from the inside to the outside the first sandwich layer, the second sandwich layer, the 3rd sandwich layer, the 4th sandwich layer, covering,
Undercoating, external coating；
First sandwich layer and the 3rd sandwich layer are when preform prepares silica weaker zone, and raw material is silicon tetrachloride, four
Germanium chloride, POCl3 and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is 80
~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 100~200ml/
Min, oxygen flow is 800~1000sccm/min；
Second sandwich layer and the 4th sandwich layer are when preform prepares silica weaker zone, and raw material is silicon tetrachloride, four
Germanium chloride, vanadium oxytrichloride and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is 80
~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 80~150ml/
Min, oxygen flow is 800~1000sccm/min；
Using the chemical vapour deposition technique MCVD of improvement, raw material is passed through, first layer dioxy is deposited in quartz reaction inside pipe wall
SiClx SiO2Weaker zone；Solution infusion method is used again, progress is rare earth ion doped, by liquid injection pipe, solution is poured into quartzy anti-
Ying Guanzhong has the region of loose Rotating fields, and liquid level need to submerge non-densified regions；After crystal reaction tube is erect, rotated, solution
Immersion a period of time；Stop the rotation, minimally invasive cutting is carried out below crystal reaction tube, is let the liquid out；High pure nitrogen is passed through, and
Rotation is opened, dewater treatment is carried out；Silica SiO after solution is soaked using MCVD devices2Weaker zone is sintered, redeposited
Second layer silica SiO2Weaker zone, repeats above-mentioned liquid phase doping, sintering step once；Using MCVD devices by quartz reaction
Pipe collapsing obtains new wavelength Double Cladding Ytterbium Doped Fiber plug into solid bar, then by new wavelength Double Cladding Ytterbium Doped Fiber plug wire drawing,
Obtain new wavelength Double Cladding Ytterbium Doped Fiber.
On the basis of above-mentioned technical proposal, first sandwich layer, the second sandwich layer, the 3rd sandwich layer, the 4th sandwich layer are in rare earth
In ion doping technique, ytterbium ion Yb is contained in the solution of injection3+, aluminium ion Al3+, ytterbium ion Yb3+Concentration for 0.1~
0.3mol/L, aluminium ion Al3+Concentration be 0.2~0.4mol/L.
On the basis of above-mentioned technical proposal, the time of the solution immersion is 60~120min.
On the basis of above-mentioned technical proposal, the cross section of the covering is in octagon.
On the basis of above-mentioned technical proposal, first sandwich layer, the second sandwich layer, the 3rd sandwich layer, the 4th sandwich layer, interior painting
Layer, external coating cross section it is rounded.
The present invention also provides a kind of new wavelength Double Cladding Ytterbium Doped Fiber, and the optical fiber includes first be arranged in order from the inside to the outside
Sandwich layer, the second sandwich layer, the 3rd sandwich layer, the 4th sandwich layer, covering, undercoating, external coating；
First sandwich layer and the 3rd sandwich layer are when preform prepares silica weaker zone, and raw material is silicon tetrachloride, four
Germanium chloride, POCl3 and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is 80
~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 100~200ml/
Min, oxygen flow is 800~1000sccm/min；
Second sandwich layer and the 4th sandwich layer are when preform prepares silica weaker zone, and raw material is silicon tetrachloride, four
Germanium chloride, vanadium oxytrichloride and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is 80
~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 80~150ml/
Min, oxygen flow is 800~1000sccm/min；
Using the chemical vapour deposition technique MCVD of improvement, raw material is passed through, first layer dioxy is deposited in quartz reaction inside pipe wall
SiClx SiO2Weaker zone；Solution infusion method is used again, progress is rare earth ion doped, by liquid injection pipe, solution is poured into quartzy anti-
Ying Guanzhong has the region of loose Rotating fields, and liquid level need to submerge non-densified regions；After crystal reaction tube is erect, rotated, solution
Immersion a period of time；Stop the rotation, minimally invasive cutting is carried out below crystal reaction tube, is let the liquid out；High pure nitrogen is passed through, and
Rotation is opened, dewater treatment is carried out；Silica SiO after solution is soaked using MCVD devices2Weaker zone is sintered, redeposited
Second layer silica SiO2Weaker zone, repeats above-mentioned liquid phase doping, sintering step once；Using MCVD devices by quartz reaction
Pipe collapsing obtains new wavelength Double Cladding Ytterbium Doped Fiber plug into solid bar, then by new wavelength Double Cladding Ytterbium Doped Fiber plug wire drawing,
Obtain new wavelength Double Cladding Ytterbium Doped Fiber.
On the basis of above-mentioned technical proposal, first sandwich layer, the second sandwich layer, the 3rd sandwich layer, the 4th sandwich layer are in rare earth
In ion doping technique, ytterbium ion Yb is contained in the solution of injection3+, aluminium ion Al3+, ytterbium ion Yb3+Concentration for 0.1~
0.3mol/L, aluminium ion Al3+Concentration be 0.2~0.4mol/L.
On the basis of above-mentioned technical proposal, the time of the solution immersion is 60~120min.
On the basis of above-mentioned technical proposal, the cross section of the covering is in octagon.
On the basis of above-mentioned technical proposal, first sandwich layer, the second sandwich layer, the 3rd sandwich layer, the 4th sandwich layer, interior painting
Layer, external coating cross section it is rounded.
Compared with prior art, advantages of the present invention is as follows：
The present invention is during Yb dosed optical fiber prefabricated rods are prepared, by MCVD (Modified Chemical Vapor
Deposition, the chemical vapour deposition technique of improvement) and gas doping technique be combined, by the design of doping component, mixing
In the ring-type fibre core of ytterbium optical fiber, incorporation P elements (P), v element (V), aluminium ion (Al3+), and adjust and match somebody with somebody with rare earth ion
Than making ytterbium ion (Yb3+) surrounding environment symmetry reduction, widen phonon, increase emission cross section, so as to change fluorescence peak
Position, makes the fluorescence secondary peak blue shift of optical fiber output drawn out, can under conditions of using wavelength for 915nm LD pumpings
Directly output wavelength is 1018nm laser with realizing high power, high stable, effectively the Excited state of reduction laser, improves effect
Rate, reduces heat problem.
Brief description of the drawings
Fig. 1 is that the fiber end face diagram of new wavelength Double Cladding Ytterbium Doped Fiber in the embodiment of the present invention is intended to.
Fig. 2 is the schematic diagram of the output wavelength test of new wavelength Double Cladding Ytterbium Doped Fiber in the embodiment of the present invention.
Fig. 3 is the spectrogram of new wavelength Double Cladding Ytterbium Doped Fiber output laser in the embodiment of the present invention.
Reference：The sandwich layers of 1- first, the sandwich layers of 2- second, the sandwich layers of 3- the 3rd, the sandwich layers of 4- the 4th, 5- coverings, 6- undercoating,
7- external coatings, 8-LD pumping sources, 9- bundling devices, the high anti-fiber gratings of 10-, 11- Double Cladding Ytterbium Doped Fibers to be measured, 12- covering work(
Rate stripper, 13- spectrometers.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Shown in Figure 1, the embodiment of the present invention provides a kind of new wavelength Double Cladding Ytterbium Doped Fiber, the optical fiber include by it is interior extremely
The first sandwich layer 1, the second sandwich layer 2, the 3rd sandwich layer 3, the 4th sandwich layer 4, covering 5, undercoating 6, the external coating 7 being arranged in order outside.
The embodiment of the present invention also provides the preparation method of the optical fiber, comprises the following steps：
First sandwich layer 1 and the 3rd sandwich layer 3 when preform prepares silica weaker zone, raw material be silicon tetrachloride,
Germanium tetrachloride, POCl3 and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is
80~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 100~200ml/
Min, oxygen flow is 800~1000sccm/min；
Second sandwich layer 2 and the 4th sandwich layer 4 when preform prepares silica weaker zone, raw material be silicon tetrachloride,
Germanium tetrachloride, vanadium oxytrichloride and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is
80~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 80~150ml/
Min, oxygen flow is 800~1000sccm/min；
Using the chemical vapour deposition technique MCVD of improvement, raw material is passed through, first layer dioxy is deposited in quartz reaction inside pipe wall
SiClx SiO2Weaker zone；Solution infusion method is used again, progress is rare earth ion doped, by liquid injection pipe, solution is poured into quartzy anti-
Ying Guanzhong has the region of loose Rotating fields, and liquid level need to submerge non-densified regions；After crystal reaction tube is erect, rotated, solution
Immersion a period of time；Stop the rotation, minimally invasive cutting is carried out below crystal reaction tube, is let the liquid out；High pure nitrogen is passed through, and
Rotation is opened, dewater treatment is carried out；Silica weaker zone sintering after solution is soaked using MCVD devices, redeposition second
Layer silica weaker zone, repeats above-mentioned liquid phase doping, sintering step once；Using MCVD devices by crystal reaction tube collapsing into
Solid bar, obtains new wavelength Double Cladding Ytterbium Doped Fiber plug, then by new wavelength Double Cladding Ytterbium Doped Fiber plug wire drawing, obtain new ripple
Long Double Cladding Ytterbium Doped Fiber.
First sandwich layer 1, the second sandwich layer 2, the 3rd sandwich layer 3, the 4th sandwich layer 4 in rare earth ion doped technique, injection it is molten
Contain ytterbium ion (Yb in liquid3+), aluminium ion (Al3+), ytterbium ion (Yb3+) concentration be 0.1~0.3mol/L, aluminium ion (Al3+)
Concentration be 0.2~0.4mol/L, solution immersion time be 60~120min.
The cross section of covering 5 is in octagon, the first sandwich layer 1, the second sandwich layer 2, the 3rd sandwich layer 3, the 4th sandwich layer 4, interior painting
Layer 6, the cross section of external coating 7 are rounded.
Test platform as shown in Figure 2 is built, the new wavelength Double Cladding Ytterbium Doped Fiber prepared to the embodiment of the present invention
Output wavelength test is carried out, shown in Figure 2, Double Cladding Ytterbium Doped Fiber output wavelength test device includes the LD pumps being sequentially connected
Pu source 8, bundling device 9, high anti-fiber grating 10, Double Cladding Ytterbium Doped Fiber to be measured 11, Cladding Power Stripper 12, spectrometer 13.
Multigroup output wavelength test is carried out, the spectrogram of the output laser shown in Fig. 3 is obtained.
The result of wherein three groups output wavelength tests is listed below：
(1) LD pumping wavelengths are 975nm, core diameter 10um, cladding diameter 130um, and fibre core adulterates for ring-type, and laser is defeated
Go out wavelength for 1018.3nm.
(2) LD pumping wavelengths are 975nm, core diameter 20um, cladding diameter 130um, and fibre core adulterates for ring-type, and laser is defeated
Go out wavelength for 1018.6nm.
(3) LD pumping wavelengths are 975nm, core diameter 30um, cladding diameter 250um, and fibre core adulterates for ring-type, and laser is defeated
Go out wavelength for 1019.1nm.
The present invention is during Yb dosed optical fiber prefabricated rods are prepared, by MCVD (Modified Chemical Vapor
Deposition, the chemical vapour deposition technique of improvement) and gas doping technique be combined, by the design of doping component, mixing
In the ring-type fibre core of ytterbium optical fiber, incorporation P elements (P), v element (V), aluminium ion (Al3+), and adjust and match somebody with somebody with rare earth ion
Than making ytterbium ion (Yb3+) surrounding environment symmetry reduction, widen phonon, increase emission cross section, so as to change fluorescence peak
Position, makes the fluorescence secondary peak blue shift of optical fiber output drawn out, can under conditions of using wavelength for 915nm LD pumpings
Directly output wavelength is 1018nm laser with realizing high power, high stable, effectively the Excited state of reduction laser, improves effect
Rate, reduces heat problem.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these modifications and change
Type is within the scope of the claims in the present invention and its equivalent technologies, then these modifications and variations are also in protection scope of the present invention
Within.
The prior art that the content not being described in detail in specification is known to the skilled person.
Claims (10)
1. a kind of preparation method of new wavelength Double Cladding Ytterbium Doped Fiber, it is characterised in that comprise the following steps：
The optical fiber includes the first sandwich layer (1), the second sandwich layer (2), the 3rd sandwich layer (3), the 4th sandwich layer being arranged in order from the inside to the outside
(4), covering (5), undercoating (6), external coating (7)；
First sandwich layer (1) and the 3rd sandwich layer (3) when preform prepares silica weaker zone, raw material be silicon tetrachloride,
Germanium tetrachloride, POCl3 and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is
80~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 100~200ml/
Min, oxygen flow is 800~1000sccm/min；
Second sandwich layer (2) and the 4th sandwich layer (4) when preform prepares silica weaker zone, raw material be silicon tetrachloride,
Germanium tetrachloride, vanadium oxytrichloride and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is
80~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 80~150ml/
Min, oxygen flow is 800~1000sccm/min；
Using the chemical vapour deposition technique MCVD of improvement, raw material is passed through, first layer silica is deposited in quartz reaction inside pipe wall
SiO2Weaker zone；Solution infusion method is used again, and progress is rare earth ion doped, and by liquid injection pipe, solution is poured into crystal reaction tube
In have the regions of loose Rotating fields, liquid level need to submerge non-densified regions；After crystal reaction tube is erect, rotated, solution immersion
For a period of time；Stop the rotation, minimally invasive cutting is carried out below crystal reaction tube, is let the liquid out；High pure nitrogen is passed through, and is opened
Rotation, carries out dewater treatment；Silica SiO after solution is soaked using MCVD devices2Weaker zone is sintered, redeposition second
Layer silica SiO2Weaker zone, repeats above-mentioned liquid phase doping, sintering step once；Crystal reaction tube is melted using MCVD devices
Shorten solid bar into, obtain new wavelength Double Cladding Ytterbium Doped Fiber plug, then by new wavelength Double Cladding Ytterbium Doped Fiber plug wire drawing, obtain
New wavelength Double Cladding Ytterbium Doped Fiber.
2. the preparation method of new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 1, it is characterised in that：First sandwich layer
(1), the second sandwich layer (2), the 3rd sandwich layer (3), the 4th sandwich layer (4) contain in rare earth ion doped technique in the solution of injection
Ytterbium ion (Yb3+), aluminium ion (Al3+), ytterbium ion (Yb3+) concentration be 0.1~0.3mol/L, aluminium ion (Al3+) concentration be
0.2~0.4mol/L.
3. the preparation method of new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 2, it is characterised in that：The solution immersion
Time be 60~120min.
4. the preparation method of new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 1, it is characterised in that：The covering (5)
Cross section be in octagon.
5. the preparation method of new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 1, it is characterised in that：First sandwich layer
(1), the second sandwich layer (2), the 3rd sandwich layer (3), the 4th sandwich layer (4), undercoating (6), external coating (7) cross section it is rounded.
6. a kind of new wavelength Double Cladding Ytterbium Doped Fiber, it is characterised in that：The optical fiber includes the first core being arranged in order from the inside to the outside
Layer (1), the second sandwich layer (2), the 3rd sandwich layer (3), the 4th sandwich layer (4), covering (5), undercoating (6), external coating (7)；
First sandwich layer (1) and the 3rd sandwich layer (3) when preform prepares silica weaker zone, raw material be silicon tetrachloride,
Germanium tetrachloride, POCl3 and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is
80~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 100~200ml/
Min, oxygen flow is 800~1000sccm/min；
Second sandwich layer (2) and the 4th sandwich layer (4) when preform prepares silica weaker zone, raw material be silicon tetrachloride,
Germanium tetrachloride, vanadium oxytrichloride and oxygen, wherein silicon tetrachloride and germanium tetrachloride are set out by oxygen, and silicon tetrachloride carrier gas flux is
80~100sccm/min, germanium tetrachloride carrier gas flux is 5~10sccm/min, and POCl3 carrier flow is 80~150ml/
Min, oxygen flow is 800~1000sccm/min；
Using the chemical vapour deposition technique MCVD of improvement, raw material is passed through, first layer silica is deposited in quartz reaction inside pipe wall
SiO2Weaker zone；Solution infusion method is used again, and progress is rare earth ion doped, and by liquid injection pipe, solution is poured into crystal reaction tube
In have the regions of loose Rotating fields, liquid level need to submerge non-densified regions；After crystal reaction tube is erect, rotated, solution immersion
For a period of time；Stop the rotation, minimally invasive cutting is carried out below crystal reaction tube, is let the liquid out；High pure nitrogen is passed through, and is opened
Rotation, carries out dewater treatment；Silica SiO after solution is soaked using MCVD devices2Weaker zone is sintered, redeposition second
Layer silica SiO2Weaker zone, repeats above-mentioned liquid phase doping, sintering step once；Crystal reaction tube is melted using MCVD devices
Shorten solid bar into, obtain new wavelength Double Cladding Ytterbium Doped Fiber plug, then by new wavelength Double Cladding Ytterbium Doped Fiber plug wire drawing, obtain
New wavelength Double Cladding Ytterbium Doped Fiber.
7. new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 6, it is characterised in that：First sandwich layer (1), the second core
Layer (2), the 3rd sandwich layer (3), the 4th sandwich layer (4) contain ytterbium ion (Yb in rare earth ion doped technique in the solution of injection3 +), aluminium ion (Al3+), ytterbium ion (Yb3+) concentration be 0.1~0.3mol/L, aluminium ion (Al3+) concentration for 0.2~
0.4mol/L。
8. new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 7, it is characterised in that：The time of the solution immersion is 60
~120min.
9. new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 6, it is characterised in that：The cross section of the covering (5) is in
Octagon.
10. new wavelength Double Cladding Ytterbium Doped Fiber as claimed in claim 6, it is characterised in that：First sandwich layer (1), second
Sandwich layer (2), the 3rd sandwich layer (3), the 4th sandwich layer (4), undercoating (6), external coating (7) cross section it is rounded.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354230.1A CN106990475A (en) | 2017-05-18 | 2017-05-18 | New wavelength Double Cladding Ytterbium Doped Fiber and preparation method |
| PCT/CN2017/111856 WO2018209916A1 (en) | 2017-05-18 | 2017-11-20 | New-wavelength double-cladding ytterbium-doped optical fiber and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354230.1A CN106990475A (en) | 2017-05-18 | 2017-05-18 | New wavelength Double Cladding Ytterbium Doped Fiber and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106990475A true CN106990475A (en) | 2017-07-28 |
Family
ID=59420257
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710354230.1A Pending CN106990475A (en) | 2017-05-18 | 2017-05-18 | New wavelength Double Cladding Ytterbium Doped Fiber and preparation method |
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|---|---|
| CN (1) | CN106990475A (en) |
| WO (1) | WO2018209916A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN108761631A (en) * | 2018-05-03 | 2018-11-06 | 烽火通信科技股份有限公司 | A kind of Yb dosed optical fiber and its manufacturing method |
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| CN108828711A (en) * | 2018-05-03 | 2018-11-16 | 烽火通信科技股份有限公司 | A kind of Yb dosed optical fiber |
| WO2018209916A1 (en) * | 2017-05-18 | 2018-11-22 | 烽火通信科技股份有限公司 | New-wavelength double-cladding ytterbium-doped optical fiber and preparation method therefor |
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| CN110028236A (en) * | 2019-04-22 | 2019-07-19 | 华中科技大学 | A kind of optical fiber and preparation method thereof of ion doping concentration longitudinal direction gradual change |
| CN110510864A (en) * | 2019-09-11 | 2019-11-29 | 烽火通信科技股份有限公司 | The preparation method and preform of highly doped rare-earth-doped fiber precast rod |
| CN112505827A (en) * | 2020-11-24 | 2021-03-16 | 法尔胜泓昇集团有限公司 | Active optical fiber for high-power laser and preparation method thereof |
| CN115072988A (en) * | 2022-08-22 | 2022-09-20 | 中国电子科技集团公司第四十六研究所 | Method for preparing rare earth ion-doped active optical fiber by punching and embedding method |
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| CN108802898B (en) * | 2018-08-29 | 2023-05-02 | 法尔胜泓昇集团有限公司 | Large-mode-field ytterbium-doped active optical fiber and preparation method thereof |
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| CN110028236A (en) * | 2019-04-22 | 2019-07-19 | 华中科技大学 | A kind of optical fiber and preparation method thereof of ion doping concentration longitudinal direction gradual change |
| CN110028236B (en) * | 2019-04-22 | 2020-08-18 | 华中科技大学 | Optical fiber with ion doping concentration gradually changing longitudinally and preparation method thereof |
| CN110510864A (en) * | 2019-09-11 | 2019-11-29 | 烽火通信科技股份有限公司 | The preparation method and preform of highly doped rare-earth-doped fiber precast rod |
| CN112505827A (en) * | 2020-11-24 | 2021-03-16 | 法尔胜泓昇集团有限公司 | Active optical fiber for high-power laser and preparation method thereof |
| CN115072988A (en) * | 2022-08-22 | 2022-09-20 | 中国电子科技集团公司第四十六研究所 | Method for preparing rare earth ion-doped active optical fiber by punching and embedding method |
| CN115072988B (en) * | 2022-08-22 | 2023-01-03 | 中国电子科技集团公司第四十六研究所 | Method for preparing rare earth ion-doped active optical fiber by punching and embedding method |
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