CN110208953A - Reversely (N+1) * 1 optical-fiber bundling device optical module - Google Patents
Reversely (N+1) * 1 optical-fiber bundling device optical module Download PDFInfo
- Publication number
- CN110208953A CN110208953A CN201910521362.8A CN201910521362A CN110208953A CN 110208953 A CN110208953 A CN 110208953A CN 201910521362 A CN201910521362 A CN 201910521362A CN 110208953 A CN110208953 A CN 110208953A
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- Prior art keywords
- reversed
- optical
- module
- fiber
- bundling device
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 78
- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- 238000010276 construction Methods 0.000 claims abstract description 44
- 238000005086 pumping Methods 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005459 micromachining Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
-
- 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
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2552—Splicing of light guides, e.g. by fusion or bonding reshaping or reforming of light guides for coupling using thermal heating, e.g. tapering, forming of a lens on light guide ends
-
- 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
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2553—Splicing machines, e.g. optical fibre fusion splicer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
- H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
A kind of reversed (N+1) * 1 optical-fiber bundling device optical module comprising reverse input end construction module and inverse output terminal construction module；Reverse input end construction module includes N root one end by drawing the reversed input pumping light fibre and a reversed input signal optical fiber bored；Inverse output terminal construction module is to carry out micro Process to the end surface of reversed output signal optical fiber using femtosecond laser, make the end from the inside to the outside deformed area and transition region and as input terminal, inverse output terminal construction module is thus made；The input terminal of the output end of reverse input end construction module and inverse output terminal construction module is welded together and can be made into reversed (N+1) * 1 optical-fiber bundling device optical module.The invention has the advantages that the optical module structure cleaning formed, is conducive to attenuating impurity and is lost to optical module bring.Using full laser development technology, it is suitble to ultra high power optical fiber laser of the transmission pumping laser general power in 2kW-100kW, high reliablity.
Description
Technical field
The invention belongs to reverse optical fiber bundling device technical field, more particularly to a kind of reversed (N+1) * 1 optical-fiber bundling device are (anti-
To pump signal optical-fiber bundling device) optical module.
Background technique
Inverted pump signal optical-fiber bundling device is the core component of double-ended pump high-capacity optical fiber laser, height both domestic and external
Power fibre lasers manufacturer is as indispensable former component.But for inverted pump signal optical-fiber bundling device
Speech, it is very crucial how to improve its reliability, and especially under ultra high power service condition, mould field matching and high energy light echo are systems
The about stumbling-block that advances of inverted pump signal optical-fiber bundling device.The defeated condition of pumping laser is reversely inputted in high power
Under, inverted pump signal optical-fiber bundling device can generate certain reversed input pumping laser light echo, this part reversely inputs pumping
Laser light echo can make inverted pump signal optical-fiber bundling device structure generate amount of localized heat, gather reversed input with amount of localized heat
Pump signal optical-fiber bundling device cone structure can generate optical parameter variation, lead to inverted pump signal optical-fiber bundling device optical module
It burns.In order to avoid the generation of above-mentioned local energy clustering phenomena, it is necessary to inverted pump signal optical-fiber bundling device optical module
Architectural concept distils, the constraint of positive high power pump signal optical fibre bundling device optical module structure before breaking through, using new
The optical module structure of concept.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of reversed (N+1) * 1 optical-fiber bundling device optical modules.
In order to achieve the above object, reversed (N+1) * 1 optical-fiber bundling device optical module provided by the invention includes reversed input
End structure module and inverse output terminal construction module；Wherein, the reverse input end construction module includes N root one end by drawing
The reversed input pumping light fibre and a reversed input signal optical fiber of cone；N root is by drawing the outer of the reversed input pumping light bored fibre
Circumferential surface spacing distance is melting adhered on the outer circumference surface of reversed input signal optical fiber, and reversed input pumping light fibre and reversed
Reverse input end construction module is consequently formed in parallel in the axial of input signal optical fiber, wherein the drawing on reversed input pumping light fibre
Tapering position is located at the output end of reverse input end construction module；It is anti-since there is no deformation for reversed input signal optical fiber
The single-mode laser exported to the opposite direction of optical-fiber bundling device will not generate loss in the position；
Inverse output terminal construction module is to carry out micro- add using end surface of the femtosecond laser to reversed output signal optical fiber
Work, so that the end is formed deformed area and tubular transition region in cone shape from the inside to the outside and as input terminal, so as to
Leak out reversed input pumping laser light echo, and make transition region face size and reverse input end construction module output end most
Major diameter is consistent, forms mould field with reversed input pumping laser and matches, inverse output terminal construction module is thus made；
Finally by the input terminal welding of the output end of reverse input end construction module and inverse output terminal construction module one
It rises and can be made into described reversed (N+1) the * 1 optical-fiber bundling device optical module.
The drawing cone of the reversed input pumping light fibre uses one direction CO2Laser draws cone machine to carry out.
It is melting adhered using three direction CO between the fine and reversed input signal optical fiber of the reversed input pumping light2Laser
Melting method.
The reversed output signal optical fiber uses the passive doubly clad optical fiber of big core diameter or big core diameter active double clad light
It is fine.
End is used between the output end of the reverse input end construction module and the input terminal of inverse output terminal construction module
Face-pumping coupling process carries out welding.
Reversed (N+1) * 1 optical-fiber bundling device optical module provided by the invention has the advantage that
1) the reversed input signal optical fiber of reverse input end construction module passes through what drawing was bored melting adhered in this optical module
It is undeformed during reversed input pumping light is fine, then for the sharp of the high light beam quality of reverse optical fiber bundling device opposite direction output
The reliability of device can be improved in the position without corresponding loss and heat superposition in light.
2) reverse input end construction module uses three direction laser to carry out melting adhered, the optical module of formation in this optical module
Structure cleaning is conducive to attenuating impurity and is lost to optical module bring.In addition, due at melting adhered position, center signal
Cross section of optic fibre diameter is greater than pumping optical fiber cross-sectional diameter, can make integral adhesive using the progress of three direction laser is melting adhered
Region is uniformly heated.
3) inverse output terminal construction module uses the passive doubly clad optical fiber of the big core diameter of femtosecond laser parallel micromachining in this optical module
Or active double clad fiber, deformed area and transition region is consequently formed.Deformed area and transition region are integral structure, and reversed
The fibre core of output signal optical fiber is undeformed, forms mould field with reversed input signal optical fiber and matches, therefore is formed after can reducing welding
Loss.It is lost in addition, deformed area and transition region advantageously reduce reversed input pumping laser light echo to optical module bring, it can
Reversed input pumping laser light echo is filtered out by deformed area and transition region.In addition, if input and output signal fiber count
It is variant to be worth aperture, can also the fibre core to signal optical fibre expand rear welding, form mould field matching type inverted pump signal
Optical-fiber bundling device.
4) this optical module uses full laser development technology, is suitble to transmission pumping laser general power in the superelevation of 2kW-100kW
Power fibre lasers, high reliablity.
Detailed description of the invention
Fig. 1 is reverse input end construction module signal in reversed (N+1) * 1 optical-fiber bundling device optical module provided by the invention
Figure.
Fig. 2 is inverse output terminal construction module signal in reversed (N+1) * 1 optical-fiber bundling device optical module provided by the invention
Figure.
Fig. 3 is schematic diagram before reversed (N+1) * 1 optical-fiber bundling device optical module welding provided by the invention.
Fig. 4 is schematic diagram after reversed (N+1) * 1 optical-fiber bundling device optical module welding provided by the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
As shown in Figures 1 to 4, reversed (N+1) * 1 optical-fiber bundling device optical module 6 provided by the invention includes reverse input end
Construction module 7 and inverse output terminal construction module 8；Wherein, the reverse input end construction module 7 passes through including N root one end
Draw the reversed input pumping light fibre 1 and a reversed input signal optical fiber 2 of cone；N root is by drawing the reversed input pumping light fibre 1 bored
Outer peripheral surface spacing distance it is melting adhered on the outer circumference surface of reversed input signal optical fiber 2, and reversed input pumping light fibre 1
It is axial parallel with reversed input signal optical fiber 2, reverse input end construction module 7 is consequently formed, wherein reversed input pumping light
Draw tapering position positioned at the output end of reverse input end construction module 7 on fibre 1；Due to reversed input signal optical fiber 2 there is no
Deformation, therefore the single-mode laser of the opposite direction output of reverse optical fiber bundling device will not generate loss in the position；
Inverse output terminal construction module 8 is micro- using end surface progress of the femtosecond laser to reversed output signal optical fiber 3
Processing, make the end is formed from the inside to the outside be in cone shape deformed area 4 and tubular transition region 5 and as input terminal,
To leak out reversed input pumping laser light echo, and make the defeated of the face size of transition region 5 and reverse input end construction module 7
Outlet maximum gauge is consistent, forms mould field with reversed input pumping laser and matches, inverse output terminal construction module is thus made
8；
Finally the input terminal welding of the output end of reverse input end construction module 7 and inverse output terminal construction module 8 is existed
It can be made into described reversed (N+1) the * 1 optical-fiber bundling device optical module 6 together.
The drawing cone of the reversed input pumping light fibre 1 uses one direction CO2Laser draws cone machine to carry out.
It is melting adhered using three direction CO between the reversed input pumping light fibre 1 and reversed input signal optical fiber 22Swash
Light melting method.
The reversed output signal optical fiber 3 uses the passive doubly clad optical fiber of big core diameter or big core diameter active double clad light
It is fine.
It is used between the output end of the reverse input end construction module 7 and the input terminal of inverse output terminal construction module 8
End pumping coupling process carries out welding.
Now the working principle of reversed (N+1) * 1 optical-fiber bundling device optical module 6 provided by the invention is described below:
Due to this reversed (N+1) * 1 optical-fiber bundling device can the single-mode lasers that are largely formed by concussion of opposite direction output,
So the signal optical fibre fibre core of reversed output input cannot deform, otherwise will form signal optical fibre core model field unbalance and
Splice loss, splice attenuation is caused, burns optical module in the environment of the operation of high power single-mode laser.In addition, reversely the application of input pumping laser is anti-
Leakage processing is carried out to (N+1) * 1 optical-fiber bundling device optical module inverse output terminal construction module, then by encapsulating structure part and is followed
The heat derives that ring water-cooling system generates loss.
Claims (5)
1. a kind of reversed (N+1) * 1 optical-fiber bundling device optical module, it is characterised in that: reversed (N+1) * 1 optical-fiber bundling device
Optical module (6) includes reverse input end construction module (7) and inverse output terminal construction module (8)；Wherein, the reversed input
End structure module (7) includes N root one end by drawing the reversed input pumping light bored fine (1) and a reversed input signal optical fiber
(2)；N root is melting adhered in reversed input signal light by drawing the outer peripheral surface spacing distance of the reversed input pumping light fine (1) of cone
On the outer circumference surface of fine (2), and reversed input pumping light fine (1) is axial parallel with reversed input signal optical fiber (2), thus
It is formed reverse input end construction module (7), wherein the drawing tapering position on reversed input pumping light fibre (1) is located at reverse input end knot
The output end of structure module (7)；Since reversed input signal optical fiber (2) is there is no deformation, reverse optical fiber bundling device it is anti-
The single-mode laser of direction output will not generate loss in the position；
Inverse output terminal construction module (8) is micro- using end surface progress of the femtosecond laser to reversed output signal optical fiber (3)
Processing, make the end is formed from the inside to the outside be in cone shape deformed area (4) and tubular transition region (5) and as input
End to leak out reversed input pumping laser light echo, and makes the face size and reverse input end construction module of transition region (5)
(7) output end maximum gauge is consistent, forms mould field with reversed input pumping laser and matches, inverse output terminal knot is thus made
Structure module (8)；
Finally the input terminal welding of the output end of reverse input end construction module (7) and inverse output terminal construction module (8) is existed
It can be made into described reversed (N+1) the * 1 optical-fiber bundling device optical module (6) together.
2. reversed (N+1) * 1 optical-fiber bundling device optical module according to claim 1, it is characterised in that: described is reversed defeated
Enter the drawing cone of pumping optical fiber (1) using one direction CO2Laser draws cone machine to carry out.
3. reversed (N+1) * 1 optical-fiber bundling device optical module according to claim 1, it is characterised in that: described is reversed defeated
Enter melting adhered using three direction CO between pumping optical fiber (1) and reversed input signal optical fiber (2)2Laser melting method.
4. reversed (N+1) * 1 optical-fiber bundling device optical module according to claim 1, it is characterised in that: described is reversed defeated
Signal optical fibre (3) uses the passive doubly clad optical fiber of big core diameter or big core diameter active double clad fiber out.
5. reversed (N+1) * 1 optical-fiber bundling device optical module according to claim 1, it is characterised in that: described is reversed defeated
Enter between the output end of end structure module (7) and the input terminal of inverse output terminal construction module (8) using end pumping coupling process
Carry out welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521362.8A CN110208953A (en) | 2019-06-17 | 2019-06-17 | Reversely (N+1) * 1 optical-fiber bundling device optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910521362.8A CN110208953A (en) | 2019-06-17 | 2019-06-17 | Reversely (N+1) * 1 optical-fiber bundling device optical module |
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| Publication Number | Publication Date |
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| CN110208953A true CN110208953A (en) | 2019-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910521362.8A Pending CN110208953A (en) | 2019-06-17 | 2019-06-17 | Reversely (N+1) * 1 optical-fiber bundling device optical module |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405635A (en) * | 2006-02-07 | 2009-04-08 | Itf实验室 | Multimode fiber outer cladding coupler for multi-clad fibers |
| CN105633778A (en) * | 2016-03-28 | 2016-06-01 | 中国人民解放军国防科学技术大学 | High-order-mode filtering optical fiber end surface pumping coupler and manufacture method thereof |
| CN210038348U (en) * | 2019-06-17 | 2020-02-07 | 天津欧泰激光科技有限公司 | Reverse (N +1) × 1 optical fiber beam combiner optical module |
-
2019
- 2019-06-17 CN CN201910521362.8A patent/CN110208953A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405635A (en) * | 2006-02-07 | 2009-04-08 | Itf实验室 | Multimode fiber outer cladding coupler for multi-clad fibers |
| CN105204118A (en) * | 2006-02-07 | 2015-12-30 | Itf科技公司 | Multimode Fiber Outer Cladding Coupler For Multi-Clad Fibers |
| CN105633778A (en) * | 2016-03-28 | 2016-06-01 | 中国人民解放军国防科学技术大学 | High-order-mode filtering optical fiber end surface pumping coupler and manufacture method thereof |
| CN210038348U (en) * | 2019-06-17 | 2020-02-07 | 天津欧泰激光科技有限公司 | Reverse (N +1) × 1 optical fiber beam combiner optical module |
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Application publication date: 20190906 |