CN205581344U - Optic fibre end cap laser fusion bonding device - Google Patents
Optic fibre end cap laser fusion bonding device Download PDFInfo
- Publication number
- CN205581344U CN205581344U CN201521033790.XU CN201521033790U CN205581344U CN 205581344 U CN205581344 U CN 205581344U CN 201521033790 U CN201521033790 U CN 201521033790U CN 205581344 U CN205581344 U CN 205581344U
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- China
- Prior art keywords
- internal reflection
- end cap
- mirror
- laser
- optical fiber
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Abstract
The utility model discloses an optic fibre end cap laser fusion bonding device has solved the problem that current welding device structure is complicated, the suitability is poor, butt fusion efficiency remains further improvement. Technical scheme includes the CO2 laser instrument, has arranged focusing lens, rotatory reflection mirror and internal reflection focusing mirror on the laser beam that edge CO2 laser instrument jetted out in proper order, wherein, the rotatory reflection mirror is rotatory by motor drive, and its mirror surface normal line has the contained angle with rotation axis, the internal reflection focusing mirror has annular internal reflection mirror surface, the internal reflection mirror surface is the cambered surface, the incident focus of internal reflection focusing mirror circle with rotatory reflection mirror reflection laser beam's meeting focus point circle coincidence, the coke discharging that penetrates of internal reflection focusing mirror puts the butt fusion position that lies in optic fibre and quartzy end cap. The utility model discloses the butt fusion that simple structure, compact, butt fusion be efficient, can realize more large diameter quartzy end cap and optic fibre.
Description
Technical field
This utility model relates to a kind of fusion splicing devices for optical fiber, specifically a kind of optical fiber end
Cap laser welding device.
Background technology
Along with high power solid-state laser, the development of optical-fiber laser, and high-power semiconductor laser
The continuous improvement of beam quality, the demand of high power energy-transmission optic fibre will increase day by day, high power
Pass and can there is the problem that end face power density is high, loss is big and clamping is inconvenient by bare fibre, solve
Certainly the method for the problems referred to above is at optical fiber two ends welding major diameter quartz end cap, and at end cap two ends
Carry out coating film treatment.
The welding process of existing conventional optical fiber and end cap is mainly flame, electrode discharge and filament
Deng welding process, said method is all to utilize the radiation of heat and transmission to carry out entering welding position
Row heating.Current most fused fiber splice uses the mode of electrode discharge, electrode discharge
Method mostly for the communication optical fiber of normal diameter, it is impossible to for optical fiber and major diameter quartz
Welding between end cap, the asymmetric welding of size this with end cap welding to optical fiber is difficult to locate especially
Reason.Such as model is that rattan storehouse FSM-100 series maximum can welding a diameter of 500～1000um
Optical fiber, and current business-like carbon dioxide heat sealing machine temporarily only have model be Teng Cang
The heat sealing machine of LZM-100, the mode of heating of this heat sealing machine is antenna with side radiation direction heating, and maximum can
The optical fiber processed or end cap diameter also only have 2mm.
Summary of the invention
The invention aims to solve above-mentioned technical problem, it is provided that a kind of simple in construction, body
Long-pending compact, fusion efficiency is high, can realize larger-diameter quartz end cap and the optical fiber of fused fiber splice
End cap laser welding device.
Technical scheme includes CO2Laser instrument, along CO2On the laser optical path of laser instrument injection successively
It is disposed with condenser lens, rotating mirror and internal reflection focus lamp；Wherein, described rotary reflection
Mirror is driven by motor and rotates, and its minute surface normal and rotation axis have angle；Described internal reflection gathers
Burnt mirror has the internal reflection minute surface of annular, and described internal reflection minute surface is cambered surface, and described internal reflection gathers
Entrance focus circle and the described rotating mirror of burnt mirror reflects the converging focal point circle weight of laser beam
Closing, the injection focus of described internal reflection focus lamp is positioned at optical fiber and the welding position of quartz end cap.
Described CO2First is there also is provided guide-lighting on laser optical path between laser instrument and condenser lens
Reflecting mirror.
Is there also is provided on laser optical path between described rotating mirror and internal reflection focus lamp
Two guide light reflection mirrors.
The hole passed for optical fiber is had on described second guide light reflection mirror.
The axis of described optical fiber has angle with the central axis of internal reflection focus lamp.
Optical fiber be mainly composed of silicon dioxide, to CO2The wave band absorbance of laser 10.6um is very
Height, CO2Laser welding mode then make use of the optical fiber absorption characteristic to this wave band of laser, inhaling
The laser energy received becomes heat.CO2Laser instrument does welding thermal source advantage and is to be able to ensure that thermal source
Cleaning, it is ensured that around optical fiber fusion welding point, naked fine part does not have any attachment pollutant, fusion point
Will not occur burning phenomenon because part surface temperature is too high under high-power operation.
In this utility model, described CO2Laser instrument, can be as welding source, it is provided that needed for welding
The laser wanted；Described condenser lens can be by CO2The laser that laser instrument sends is focused, and makes to swash
Light becomes the light beam assembled；Described rotating mirror can reflect the laser beam of convergence, and it is at electricity
Under the driving of machine, can rotate around rotary shaft, due to minute surface normal and the rotation of rotating mirror
Axis has angle so that the converging focal point of the convergent laser bundle reflected is along with rotating mirror
Rotation and move accordingly, its space tracking is a circle, referred to as converging focal point circle；In described
Reflection focus lamp has the internal reflection minute surface of annular, and described internal reflection minute surface is cambered surface, described interior
The entrance focus circle of reflection focus lamp focuses on the meeting of described rotating mirror reflection laser beam
Null circle overlaps, and the injection focus of described internal reflection focus lamp is positioned at optical fiber and the welding of quartz end cap
Position, in this manner it is possible in the future the laser beam of spinning reflecting mirror reflect and focus on optical fiber with
The welding position of quartz end cap；Described first guide light reflection mirror and the second guide light reflection mirror can be used
The transmission direction changing light path makes fusion splicing devices overall structure more compact.Wherein, for welding
Time optical fiber putting position needs, can offer on the second guide light reflection mirror and to pass for optical fiber
Hole, the axis of described optical fiber has angle, in order to avoid blocking with the central axis of internal reflection focus lamp
Laser beam.
Beneficial effect:
(1) CO is used2Laser can ensure that the cleaning of pad as welding source, due to laser
Light beam has converging action, and this utility model can be applied not only to standard compared to prior art
The communication optical fiber of diameter, is also applied for the welding between optical fiber and major diameter quartz end cap；
2) reflecting laser beam due to whole device many employings reflecting mirror, relatively lens are compared,
Laser Transmission efficiency is high, can be effectively improved weld job efficiency；
3) this utility model compact equipment, good operation stability, reliability are high, raw
Produce cost and operating cost is low.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the principle of reflection figure of rotating mirror.
Fig. 3 is the principle of reflection figure of internal reflection focus lamp.
Wherein, 1-CO2Laser instrument, 2-the first guide light reflection mirror, 3-condenser lens, 4-rotates
Reflecting mirror, 5-converging focal point circle, 6-the first guide light reflection mirror, 6.1-hole, 7-internal reflection focus on
Mirror, 7.1-internal reflection minute surface, 8-optical fiber, 9-quartz end cap, 10-entrance focus circle, 11-
Injection focus.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further explained explanation:
See Fig. 1, along CO2Focusing it has been sequentially arranged thoroughly on the laser optical path of laser instrument 1 injection
Mirror, the first guide light reflection mirror 2, rotating mirror the 4, second guide light reflection mirror 6 and internal reflection
Focus lamp 7；Wherein, described rotating mirror 4 is driven by motor (not shown) and rotates,
Its minute surface normal and rotation axis have angle；Seeing Fig. 3, described internal reflection focus lamp 7 has
Having the internal reflection minute surface 7.1 of annular, described internal reflection minute surface 7.1 is cambered surface, described internal reflection
Entrance focus circle 10 and the described rotating mirror 4 of focus lamp 7 reflect the convergence of laser beam
Focal circle 5 overlaps, and the injection focus 11 of described internal reflection focus lamp 7 is positioned at optical fiber 8 and stone
The welding position of English end cap 9.Have on described second guide light reflection mirror 6 and supply optical fiber 8 to pass
Hole 6.1.The axis of described optical fiber 8 and the central axis of internal reflection focus lamp 7 have angle.
Above-mentioned each parts can be installed by fine adjustment frame, and the regulation dimension of described fine adjustment frame comprises
Angular adjustment and displacement regulation, this is prior art, does not make enumeration at this.Described optical fiber 8
Industrial camera (not shown) can be used to be monitored with the alignment case of quartz end cap 8.
Operation principle:
By the end of optical fiber 8 through the hole 6.1 on the second guide light reflection mirror 6 and internal reflection
Focus lamp 7, makes the end of optical fiber 8 contact with quartz end cap 8, and regulates both weld portion
Position is at the injection focus 11 of internal reflection focus lamp 7；Open CO2Laser instrument 1, CO2Swash
The 10.6um wave band of laser light beam of light device 1 radiation is first rolled over after the first guide light reflection mirror 2 reflection
It turn 90 degrees angle, then focused on by described the most burnt poly-mirror 3 and become the laser beam of convergence, this laser beam
Reflected by described rotating mirror 4 and focus on, owing to described rotating mirror 4 is driven by motor
Dynamic rotation, the laser beam of described convergence becomes a meeting focusing at the scanning track of laser focusing point
Null circle 5 (seeing Fig. 2 and Fig. 1), and this converging focal point circle 5 just focuses on described internal reflection
Entrance focus circle 10 (seeing Fig. 3 and Fig. 1) of mirror 7 overlaps so that described rotating mirror
4 laser beams reflected folding after the second guide light reflection mirror 6 reflection turn 90 degrees just incident
On the internal reflection minute surface 7.1 of internal reflection focus lamp 7, focus on through internal reflection focus lamp 7 reflection
In injection focus 11, the welding position of optical fiber 8 and quartz end cap 9 is placed exactly in injection Jiao
At point 11, thus laser beam realizes optical fiber 8 and the welding of quartz end cap 9.Quartz end
Cap 9 has an angle with the axis of optical fiber 8 with the central axis of internal reflection focus lamp 7, with
Optical fiber 8 is avoided to block the laser beam of incidence.
Claims (5)
1. an optical fiber end cap laser welding device, including CO2Laser instrument, it is characterised in that along CO2Condenser lens, rotating mirror and internal reflection focus lamp have been sequentially arranged it on the laser optical path of laser instrument injection；Wherein, described rotating mirror is driven by motor and rotates, and its minute surface normal and rotation axis have angle；Described internal reflection focus lamp has the internal reflection minute surface of annular, described internal reflection minute surface is cambered surface, the entrance focus circle of described internal reflection focus lamp overlaps with the converging focal point circle of described rotating mirror reflection laser beam, and the injection focus of described internal reflection focus lamp is positioned at optical fiber and the welding position of quartz end cap.
2. optical fiber end cap laser welding device as claimed in claim 1, it is characterised in that described CO2The first guide light reflection mirror is there also is provided on laser optical path between laser instrument and condenser lens.
3. optical fiber end cap laser welding device as claimed in claim 1 or 2, it is characterised in that there also is provided the second guide light reflection mirror on the laser optical path between described rotating mirror and internal reflection focus lamp.
4. optical fiber end cap laser welding device as claimed in claim 3, it is characterised in that have the hole passed for optical fiber on described second guide light reflection mirror.
5. optical fiber end cap laser welding device as claimed in claim 4, it is characterised in that the axis of described optical fiber has angle with the central axis of internal reflection focus lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033790.XU CN205581344U (en) | 2015-12-11 | 2015-12-11 | Optic fibre end cap laser fusion bonding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033790.XU CN205581344U (en) | 2015-12-11 | 2015-12-11 | Optic fibre end cap laser fusion bonding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205581344U true CN205581344U (en) | 2016-09-14 |
Family
ID=56881857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521033790.XU Expired - Fee Related CN205581344U (en) | 2015-12-11 | 2015-12-11 | Optic fibre end cap laser fusion bonding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205581344U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998031A (en) * | 2017-05-17 | 2017-08-01 | 中国兵器装备研究院 | A kind of manufacture method of the quartzy end cap of high power |
| CN109001863A (en) * | 2018-09-07 | 2018-12-14 | 广东国志激光技术有限公司 | A kind of devices and methods therefor of ring-shaped light spot welding optic fibre end cap |
| CN111628397A (en) * | 2020-06-09 | 2020-09-04 | 相位光粒(北京)科技有限公司 | High-power fiber laser based on quartz waveguide coupling |
| CN112099144A (en) * | 2020-10-13 | 2020-12-18 | 中国科学院上海光学精密机械研究所 | Device and method for realizing alignment of optical fiber and quartz end cap |
-
2015
- 2015-12-11 CN CN201521033790.XU patent/CN205581344U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106998031A (en) * | 2017-05-17 | 2017-08-01 | 中国兵器装备研究院 | A kind of manufacture method of the quartzy end cap of high power |
| CN109001863A (en) * | 2018-09-07 | 2018-12-14 | 广东国志激光技术有限公司 | A kind of devices and methods therefor of ring-shaped light spot welding optic fibre end cap |
| CN111628397A (en) * | 2020-06-09 | 2020-09-04 | 相位光粒(北京)科技有限公司 | High-power fiber laser based on quartz waveguide coupling |
| CN111628397B (en) * | 2020-06-09 | 2021-12-28 | 相位光粒(北京)科技有限公司 | High-power fiber laser based on quartz waveguide coupling |
| CN112099144A (en) * | 2020-10-13 | 2020-12-18 | 中国科学院上海光学精密机械研究所 | Device and method for realizing alignment of optical fiber and quartz end cap |
| CN112099144B (en) * | 2020-10-13 | 2022-10-11 | 中国科学院上海光学精密机械研究所 | Device and method for realizing alignment of optical fiber and quartz end cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20211211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |