CN108023270A - A kind of multikilowatt semiconductor laser optical fiber coupling device based on short-term battle array bar laser - Google Patents
A kind of multikilowatt semiconductor laser optical fiber coupling device based on short-term battle array bar laser Download PDFInfo
- Publication number
- CN108023270A CN108023270A CN201711266885.XA CN201711266885A CN108023270A CN 108023270 A CN108023270 A CN 108023270A CN 201711266885 A CN201711266885 A CN 201711266885A CN 108023270 A CN108023270 A CN 108023270A
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- CN
- China
- Prior art keywords
- laser
- semiconductor laser
- coupling device
- fiber coupling
- battle array
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- H01S5/00—Semiconductor lasers
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
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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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- 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
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4012—Beam combining, e.g. by the use of fibres, gratings, polarisers, prisms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optical Couplings Of Light Guides (AREA)
- Laser Surgery Devices (AREA)
Abstract
A kind of high-power semiconductor laser fiber coupling device, belongs to laser technology field.The field known technology is difficult to the beam quality and output power for being effectively improved fiber coupled laser diode, the application of high power semiconductor lasers is very limited.The present invention uses three laser stacking array modules, respectively by closing beam, expanding, focus on, obtain the laser output of high power, high light beam quality, overlapping conjunction beam is realized through 45 degree of reflections using the output beam of laser stacking array, adjusted by convergence of the cylindrical lens on slow-axis direction, the focusing of combined beam light beam is set to girdle the waist in fast, slow-axis direction position consistency, coupling optical path is turned back by two speculums, makes the compact arrangement of whole light channel structure.
Description
Technical field
The present invention relates to a kind of high-power semiconductor laser fiber coupling device, belong to laser technology field.
Background technology
Semiconductor laser possesses the advantages that small, efficient, easy of integration, is widely used in the neck such as communication, medical treatment, military affairs
Domain.Due to the intrinsic structure of semiconductor laser, there is very big astigmatism in its output beam, its energy point in speed direction of principal axis
Cloth is uneven and asymmetric, improves its beam quality using fiber-optic coupling method under normal conditions.
The content of the invention
It is an object of the invention to provide a kind of high-power semiconductor laser fiber coupling output device, the present apparatus simplifies
Laser output coupling system, a kind of feasible program is provided for the encapsulation of high-power semiconductor laser fiber coupling.
To achieve these goals, semiconductor laser optical fiber coupling device of the present invention, using three laser stacking arrays
Module, respectively by closing beam, expanding, focus on, obtains the laser output of high power, high light beam quality.
Semiconductor laser fiber coupling device folds battle array, fast axis collimation lens array, slow axis standard by three semiconductor lasers
Straight mirror, speculum group, beam-expanding system, cylindrical lens, condenser lens and optical fiber are formed.
Three collimator lens array are respectively placed in three semiconductor lasers and fold battle array front portion, carry out fast axle, the light of slow-axis direction
Beam is collimated to reduce beam divergence angle.
Three semiconductor lasers fold battle array and stack composition by multiple identical short-term battle array bar lasers.
First semiconductor laser folds the light direction of battle array and the second semiconductor laser folds battle array, the 3rd semiconductor laser is folded battle array and gone out
Light direction is vertical；Second semiconductor laser fold battle array folded with the 3rd semiconductor laser battle array light direction it is parallel.
First speculum group is formed with the second speculum group by multiple rectangular mirrors, the bore of each rectangular mirror
Determined by the output beam size of corresponding each short-term battle array bar laser, and with light direction into 45 degree of angles.
After second semiconductor laser folds battle array, the 3rd semiconductor laser folds gust output beam collimation, respectively by speculum group
Realize that beam direction folding is turn 90 degrees, the output beam after battle array collimation is folded with the first semiconductor laser and realizes conjunction beam.
Beam-expanding system is made of negative lens, positive lens, realizes that light beam is consistent in fast, slow-axis direction size.
Cylindrical lens adjust the laser beam after expanding in the enterprising line convergence of slow-axis direction, make light beam fast, slow-axis direction
Focus on position consistency with a tight waist.
The light path after beam is closed to turn back by the first speculum, 90 degree of the second speculum progress respectively, then by aplanasia gather
In focus lens coupled into optical fibres, the compact arrangement of whole light channel structure is realized.
Brief description of the drawings
Fig. 1 is high-power semiconductor laser fiber coupling device structure diagram.1 folds battle array for the first semiconductor laser, and 2
Battle array is folded for the second semiconductor laser, 3 fold battle array for the 3rd semiconductor laser, and 4 be the first collimator lens array, and 5 is saturating for the second collimation
Lens array, 6 be the 3rd collimator lens array, and 7 be the first speculum group, and 8 be the second speculum group, and 9 be negative in beam-expanding system
Lens, 10 be the positive lens in beam-expanding system, and 11 be the first speculum, and 12 be the second speculum, and 13 be cylindrical lens, and 14 be the ball that disappears
Poor condenser lens, 15 be multimode fibre.
Embodiment
In order to become apparent from the purpose of this programme and advantage, it is further detailed below in conjunction with attached drawing.
With reference to Fig. 1, high-power semiconductor laser fiber coupling device in the present embodiment, the device includes：First semiconductor
Laser stacking array 1, the second semiconductor laser fold battle array 2, and the 3rd semiconductor laser folds battle array 3, the first collimator lens array 4, the second collimation
Lens array 5, the 3rd collimator lens array 6, the first speculum group 7, the second speculum group 8, negative lens 9, positive lens 10, first
Speculum 11, the second speculum 12, cylindrical lens 13, aplanasia condenser lens 14, multimode fibre 15.
In the present embodiment, the laser emission wavelength that three semiconductor lasers fold battle array is unanimously 915nm.Semiconductor
For laser stacking array by 10 layers of short-term battle array bar laser constitution, the lamination cycle is 1.8 millimeters.The laser that each semiconductor laser folds battle array is defeated
Go out power for 500 watts.
First semiconductor laser folds battle array 1, the second semiconductor laser folds battle array 2, the 3rd semiconductor laser fold battle array 3 laser it is defeated
Go out, carry out beam collimation by the first collimator lens array 4, the second collimator lens array 5, the 3rd collimator lens array 6 respectively.
Second semiconductor laser folds battle array 2, the 3rd semiconductor laser folds the laser output after battle array 3 collimates, respectively by first
Speculum group 7, the second speculum group 8 reflection after, with the first semiconductor laser fold battle array 1 laser output realize close beam.Then,
The beam-expanding system formed by negative lens 9, positive lens 10 realizes that the beam sizes on fast, slow-axis direction are consistent.
It is above-mentioned expand after light beam, after cylindrical lens 13 carry out collimation adjustment to the light beam of slow-axis direction, by aplanasia
Condenser lens 14 is assembled and is coupled into the multimode fibre 15 of 400 microns of core diameters.The first speculum 11, the second speculum in light path
12 realize that 90 degree of light path are turned back respectively.The laser output coupling that three above semiconductor laser folds battle array is more into 400 microns of core diameters
The laser power of mode fiber is up to 1200 watts.
Claims (4)
1. a kind of high-power semiconductor laser fiber coupling device, it is characterised in that using three laser stacking array modules, lead to respectively
Conjunction beam is crossed, expands, focus on, obtains the laser output of high power, high light beam quality.
2. the high-power semiconductor laser fiber coupling device according to claim 1, it is characterised in that close binding structure and adopt
With the output beam of laser stacking array overlapping conjunction beam is realized through 45 degree of reflections.
3. the high-power semiconductor laser fiber coupling device according to claim 1, it is characterised in that combined beam light beam leads to
Convergence adjustment of the cylindrical lens on slow-axis direction is crossed, the focusing of combined beam light beam is girdled the waist in fast, slow-axis direction position consistency.
4. the high-power semiconductor laser fiber coupling device according to claim 1, it is characterised in that coupling optical path passes through
Turning back for two speculums is crossed, realizes the compact arrangement of whole light channel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266885.XA CN108023270A (en) | 2017-12-05 | 2017-12-05 | A kind of multikilowatt semiconductor laser optical fiber coupling device based on short-term battle array bar laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266885.XA CN108023270A (en) | 2017-12-05 | 2017-12-05 | A kind of multikilowatt semiconductor laser optical fiber coupling device based on short-term battle array bar laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108023270A true CN108023270A (en) | 2018-05-11 |
Family
ID=62078360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711266885.XA Pending CN108023270A (en) | 2017-12-05 | 2017-12-05 | A kind of multikilowatt semiconductor laser optical fiber coupling device based on short-term battle array bar laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108023270A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146682A (en) * | 2019-12-04 | 2020-05-12 | 中电科天之星激光技术（上海）有限公司 | Optical fiber coupling semiconductor laser module and semiconductor laser |
| CN112162366A (en) * | 2020-09-01 | 2021-01-01 | 联合微电子中心有限责任公司 | End face coupling device of optical fiber and waveguide chip |
| CN116365364A (en) * | 2023-02-06 | 2023-06-30 | 无锡亮源激光技术有限公司 | Multi-wavelength laser beam combining device |
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| CN101499615A (en) * | 2009-02-24 | 2009-08-05 | 福州高意通讯有限公司 | High power semiconductor pump laser and amplifier |
| CN102082395A (en) * | 2010-12-17 | 2011-06-01 | 西安炬光科技有限公司 | Multi-wavelength high-power semiconductor laser coupling system and preparation method thereof |
| CN104037616A (en) * | 2014-06-27 | 2014-09-10 | 中国工程物理研究院应用电子学研究所 | High-brightness optical fiber coupling output device and method of semiconductor laser device |
| CN104979749A (en) * | 2015-06-25 | 2015-10-14 | 鞍山伟光力激光科技有限公司 | High-power semiconductor fiber-coupled laser and coupling method thereof |
| CN105759411A (en) * | 2016-04-15 | 2016-07-13 | 武汉凌云光电科技有限责任公司 | Optical fiber coupled laser, optical fiber coupled laser system and optimization method thereof |
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2017
- 2017-12-05 CN CN201711266885.XA patent/CN108023270A/en active Pending
Patent Citations (7)
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| CN101499615A (en) * | 2009-02-24 | 2009-08-05 | 福州高意通讯有限公司 | High power semiconductor pump laser and amplifier |
| CN102082395A (en) * | 2010-12-17 | 2011-06-01 | 西安炬光科技有限公司 | Multi-wavelength high-power semiconductor laser coupling system and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111146682A (en) * | 2019-12-04 | 2020-05-12 | 中电科天之星激光技术（上海）有限公司 | Optical fiber coupling semiconductor laser module and semiconductor laser |
| CN112162366A (en) * | 2020-09-01 | 2021-01-01 | 联合微电子中心有限责任公司 | End face coupling device of optical fiber and waveguide chip |
| CN116365364A (en) * | 2023-02-06 | 2023-06-30 | 无锡亮源激光技术有限公司 | Multi-wavelength laser beam combining device |
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