CN108233182B - Optical fiber coupling system based on hollow total reflection prism compression light beam - Google Patents
Optical fiber coupling system based on hollow total reflection prism compression light beam Download PDFInfo
- Publication number
- CN108233182B CN108233182B CN201711421527.1A CN201711421527A CN108233182B CN 108233182 B CN108233182 B CN 108233182B CN 201711421527 A CN201711421527 A CN 201711421527A CN 108233182 B CN108233182 B CN 108233182B
- Authority
- CN
- China
- Prior art keywords
- mirror
- total reflection
- optical fiber
- reflection prism
- fiber coupling
- Prior art date
- 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.)
- Active
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 26
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 26
- 239000013307 optical fiber Substances 0.000 title claims abstract description 25
- 230000006835 compression Effects 0.000 title claims description 12
- 238000007906 compression Methods 0.000 title claims description 12
- 239000004065 semiconductor Substances 0.000 claims abstract description 26
- 230000010287 polarization Effects 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 2
- 239000010408 film Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WTDRDQBEARUVNC-LURJTMIESA-N L-DOPA Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C(O)=C1 WTDRDQBEARUVNC-LURJTMIESA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- 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
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
-
- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0916—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
- G02B27/0922—Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers the semiconductor light source comprising an array of light emitters
-
- 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
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/095—Refractive optical elements
- G02B27/0972—Prisms
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
本发明公开了一种基于空心全反射棱镜压缩光束的光纤耦合系统，包括3组分别由16个巴条组成的半导体激光堆栈，每组半导体激光堆栈出射端设置有快轴准直镜、慢轴准直镜、快轴准直镜、慢轴准直镜、前方的反射镜和用于实现偏振合束作用的合束镜；采用一镜式空心全反射棱镜在快轴方向压缩光宽；每组半导体激光器波长相同，不同组半导体激光器波长不同，二向色镜用于将3组不同波长的激光堆栈进行波长合束；一对平行平板平衡快慢轴光束质量，一组扩束镜进行慢轴方向的扩束处理，聚焦镜将光束耦合进目标光纤中。所述系统采用一镜式压缩光宽，简单易调，实现了紧凑高效的光纤耦合。
The invention discloses an optical fiber coupling system based on a hollow total reflection prism for compressing beams, comprising three groups of semiconductor laser stacks respectively composed of 16 bars, each group of semiconductor laser stacks is provided with a fast-axis collimating mirror and a slow-axis Collimating mirror, fast-axis collimating mirror, slow-axis collimating mirror, front reflector and beam combiner for realizing polarization beam combining; a one-mirror hollow total reflection prism is used to compress the light width in the fast axis direction; The wavelengths of the semiconductor lasers in the groups are the same, and the wavelengths of the semiconductor lasers in different groups are different. The dichroic mirror is used to combine the three groups of lasers with different wavelengths for wavelength combination; The directional beam expander is processed, and the focusing mirror couples the beam into the target fiber. The system adopts a mirror-type compressed light width, which is simple and easy to adjust, and realizes compact and efficient optical fiber coupling.
Description
Technical Field
The invention relates to the field of semiconductor lasers, in particular to an optical fiber coupling system based on a hollow total reflection prism compression beam.
Background
The high-power semiconductor laser has the advantages of small volume, long service life, high electro-optical conversion efficiency and the like, and is widely applied to the fields of material processing, laser pumping, biological medical treatment and the like. In order to realize high power and high brightness output of the semiconductor laser, it is very important to develop an efficient optical fiber coupling module for the semiconductor laser.
At present, the high-power optical fiber coupling output of a semiconductor laser is mainly obtained by beam combination technology, and the output power can be improved under the condition of not deteriorating the quality of light beams by wavelength beam combination and polarization beam combination. For fiber coupling of semiconductor laser stacks, beam shaping to eliminate the dark space between bars is a necessary operation. At present, although some patents relate to the beam shaping of the dopa strips, a plurality of shaping prisms are needed, and the compressed light width is also composed of a plurality of prisms or reflectors, so that the system is relatively complex and difficult to adjust.
Disclosure of Invention
In order to solve the technical problems, the invention provides a simple, compact and conveniently-adjusted beam shaping system, which only uses one prism to realize the compression of a fast axis beam and combines a beam combining technology to obtain high-power optical fiber coupling output.
In order to achieve the purpose, the invention adopts the following technical scheme:
optical fiber coupling system based on hollow total reflection prism compression beam, it includes: 3 groups of semiconductor laser stacks respectively consisting of 16 bars, wherein the emergent end of each group of semiconductor laser stacks is provided with a fast axis collimating mirror, a slow axis collimating mirror, a reflecting mirror in front of the fast axis collimating mirror and the slow axis collimating mirror and a beam combining mirror for realizing polarization beam combining; a mirror type hollow total reflection prism is adopted to compress the light width in the fast axis direction; each group of semiconductor lasers have the same wavelength, different groups of semiconductor lasers have different wavelengths, and the first dichroic mirror and the second dichroic mirror are used for stacking 3 groups of laser with different wavelengths to perform wavelength beam combination; the beam expanding lens group performs beam expanding treatment in the slow axis direction, and the focusing lens couples the light beam into the target optical fiber.
As a preference, allThe bars are cm-bar or mini-bar, and 3 groups of semiconductor laser stack wavelengths are different and are respectively lambda1、λ2、λ3。
Preferably, the fast axis collimating lens is an aspheric micro-cylinder lens, and the slow axis collimating lens is a micro-cylinder lens array.
Preferably, the upper surface of the lower polarization beam combiner in the polarization beam combiner is plated with a film for passing the P-polarized light beam.
Preferably, the mirror type hollow total reflection prism is an isosceles trapezoid prism, wherein a square prism and two triangular prisms are dug symmetrically relative to the center, and the base angle of the trapezoid prism is 45 degrees.
Preferably, the first dichroic mirror is plated with a plating through λ1Wave band and reflection lambda2A band of thin films, the second dichroic mirror being coated with a transparent coating1、λ2Wave band and reflection lambda3A film of a wavelength band.
Preferably, the bottom angles of the parallel flat plates are all 45 degrees.
Preferably, the set of beam expanders is two plano-convex cylindrical lenses or one plano-concave and the other plano-convex cylindrical lens.
Preferably, the focusing lens is an aspheric lens, and focuses the shaped light beam into the target optical fiber.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention can realize the compact arrangement of the light beams in the fast axis direction by only using one prism, reduces the number of prisms, has simple and easily adjustable structure and high reliability, and can obtain high power output.
Drawings
Fig. 1 is an overall structural diagram of a fiber coupling system based on a hollow total reflection prism compression beam.
Fig. 2 is a schematic view of a compressed light width prism structure of a fiber coupling system based on a hollow total reflection prism compressed light beam.
Fig. 3 is a schematic diagram of a prism of a cutting beam of a fiber coupling system based on a hollow total reflection prism compression beam.
FIG. 4 is a schematic diagram of a slow axis beam expanding system of an optical fiber coupling system based on a hollow total reflection prism compressed light beam.
Detailed Description
In order that the advantages and features of the invention will be readily understood by those skilled in the art, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1, the embodiment of the beam compression and fiber coupling system of the integrated total reflection semiconductor laser according to this embodiment includes: 3 groups of semiconductor laser stacks 1, 2 and 3 respectively consisting of 16 bars, and a fast axis collimating mirror 4 and a slow axis collimating mirror 5 respectively arranged at the emergent end of the semiconductor laser stacks; the fast axis collimating mirror 4, the reflecting mirror 6 in front of the slow axis collimating mirror 5 and the beam combining mirror 7 for realizing the polarization beam combining function; a mirror type hollow total reflection prism 8 is adopted to compress the light width in the fast axis direction; each group of semiconductor lasers has the same wavelength, and different groups of semiconductor lasers have different wavelengths; the first dichroic mirror 9 and the second dichroic mirror 10 stack 3 groups of laser with different wavelengths to perform wavelength beam combination; then, the quality of the fast and slow axis light beams is balanced by a pair of parallel flat plates 11, a group of beam expanding lenses 12 are used for carrying out beam expanding processing in the slow axis direction, and finally the light beams are coupled into a target optical fiber 14 through a focusing lens 13.
In this embodiment, for each semiconductor laser bar, in order to improve the beam combining quality and the fiber coupling efficiency, the fast axis collimator 4 and the slow axis collimator 5 select a microlens and a microlens array to perform fast axis collimation and slow axis collimation, such as an aspheric cylindrical lens or a aspheric cylindrical lens array.
In this embodiment, the mirror-type hollow total reflection prism 8 opens a square prism and two triangular prisms that are symmetrical with respect to the center in an integral structure of a trapezoidal prism, as shown in fig. 2, and the structure allows the light beam to be totally internally reflected inside the prism so as to achieve uniform compression in the fast axis direction.
In this embodiment, the light beam incident surfaces of the lens and the prism are coated with antireflection films, and the light beam reflection surfaces are coated with antireflection films, so that energy loss is reduced, and light-light conversion efficiency is improved.
In this embodiment, as shown in fig. 3, the pair of parallel glass plates 11 cuts and rearranges the compressed light beams, the pair of parallel flat plates 11 divides the compressed light beams into two equal parts in the slow axis direction, the light beams on the left side are respectively cut downwards and then translated to the right side, so that the quality of the fast axis light beams is enlarged to 2 times of the original quality, and the quality of the slow axis light beams is reduced to 2 times of the original quality, so that the quality of the fast axis light beams and the slow axis light beams reaches a balanced state.
In this embodiment, as shown in fig. 4, the pair of beam expanding cylindrical lenses 12 expands the rearranged light beam in the slow axis direction, and shapes the light beam into an approximately square spot before focusing.
Finally, in this embodiment, the focusing lens 13 is an aspheric lens, and couples the shaped light beam into the optical fiber, thereby improving the optical fiber coupling efficiency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421527.1A CN108233182B (en) | 2017-12-25 | 2017-12-25 | Optical fiber coupling system based on hollow total reflection prism compression light beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711421527.1A CN108233182B (en) | 2017-12-25 | 2017-12-25 | Optical fiber coupling system based on hollow total reflection prism compression light beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108233182A CN108233182A (en) | 2018-06-29 |
| CN108233182B true CN108233182B (en) | 2020-04-10 |
Family
ID=62648736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711421527.1A Active CN108233182B (en) | 2017-12-25 | 2017-12-25 | Optical fiber coupling system based on hollow total reflection prism compression light beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108233182B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873128B (en) * | 2018-09-05 | 2024-02-23 | 四川新易盛通信技术有限公司 | Prism, method for using prism as light beam adjuster, prism set and light assembly |
| DE102020118421B4 (en) * | 2020-07-13 | 2023-08-03 | Focuslight Technologies Inc. | laser device |
| JPWO2022064938A1 (en) * | 2020-09-28 | 2022-03-31 | ||
| CN112769038A (en) * | 2021-01-21 | 2021-05-07 | 武汉锐科光纤激光技术股份有限公司 | Slow axis collimation and space beam combination prism and semiconductor laser |
| CN113376615B (en) * | 2021-04-27 | 2022-03-08 | 探维科技(北京)有限公司 | Transmitting system capable of remarkably reducing height of laser radar |
| CN114678772A (en) * | 2022-04-25 | 2022-06-28 | 海南师范大学 | A laser light source emitting device for ocean lighting |
| CN114678774B (en) * | 2022-05-24 | 2022-08-09 | 江苏镭创高科光电科技有限公司 | Laser array coupling system with light beam correction function |
| CN116093744A (en) * | 2023-01-06 | 2023-05-09 | 东莞方孺光电科技有限公司 | Dual-wavelength laser beam combining device based on wavelength beam combining and polarization beam combining |
| CN115967015A (en) * | 2023-01-06 | 2023-04-14 | 东莞方孺光电科技有限公司 | Dual-wavelength multi-single-beam semiconductor laser beam combining device based on wavelength beam combining technology |
| CN116191204A (en) * | 2023-02-15 | 2023-05-30 | 东莞方孺光电科技有限公司 | Semiconductor laser beam combining device based on prism compressed light beam |
| CN116540367A (en) * | 2023-05-12 | 2023-08-04 | 扬州大学 | A Fiber-Coupling System Based on Synchronous Fast-Axis Compression and Slow-Axis Self-Polarizing Prisms |
| CN116719133A (en) * | 2023-06-14 | 2023-09-08 | 扬州大学 | Optical fiber coupling system based on dislocation ladder prism |
| TWI864904B (en) * | 2023-07-25 | 2024-12-01 | 台達電子工業股份有限公司 | Laser light source module and projection apparatus having the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004093971A (en) * | 2002-08-30 | 2004-03-25 | Furukawa Electric Co Ltd:The | Semiconductor laser apparatus, semiconductor laser module, and optical transmitter |
| EP2061122A1 (en) * | 2007-11-16 | 2009-05-20 | Fraunhofer USA, Inc. | A High Power Laser Diode Array Comprising at least one High Power Diode Laser, Laser Light Source Comprising the same and Method for Production thereof |
| 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 |
| 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 |
| CN106887786A (en) * | 2017-04-20 | 2017-06-23 | 中国科学院半导体研究所 | A kind of semiconductor laser module based on asymmetric shaping |
-
2017
- 2017-12-25 CN CN201711421527.1A patent/CN108233182B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004093971A (en) * | 2002-08-30 | 2004-03-25 | Furukawa Electric Co Ltd:The | Semiconductor laser apparatus, semiconductor laser module, and optical transmitter |
| EP2061122A1 (en) * | 2007-11-16 | 2009-05-20 | Fraunhofer USA, Inc. | A High Power Laser Diode Array Comprising at least one High Power Diode Laser, Laser Light Source Comprising the same and Method for Production thereof |
| 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 |
| CN102082395B (en) * | 2010-12-17 | 2013-01-09 | 西安炬光科技有限公司 | Multi-wavelength high-power semiconductor laser coupling system and preparation 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 |
| CN106887786A (en) * | 2017-04-20 | 2017-06-23 | 中国科学院半导体研究所 | A kind of semiconductor laser module based on asymmetric shaping |
Non-Patent Citations (2)
| Title |
|---|
| 全反射棱镜式激光陀螺稳频技术研究_第三章全反射棱镜式激光陀螺稳频系统概述;刘建宁;《西安电子科技大学硕士论文集》;20100131;全文 * |
| 棱镜式激光谐振腔偏振态检测技术研究_第三章全反射棱镜式激光陀螺谐振腔偏振态检测实;魏飞;《西安电子科技大学硕士论文集》;20110131;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108233182A (en) | 2018-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108233182B (en) | Optical fiber coupling system based on hollow total reflection prism compression light beam | |
| CN106684702B (en) | It is a kind of to realize that lasing spectrum of semiconductor lasers closes the device of beam using double grating | |
| CN103941406B (en) | High-power semiconductor laser optical shaping method and device based on beam expanding | |
| US7230968B2 (en) | Semiconductor laser device and solid-state laser device using same | |
| CN102082395B (en) | Multi-wavelength high-power semiconductor laser coupling system and preparation method thereof | |
| CN214044331U (en) | A blue light multi-single tube parallel double grating external cavity feedback beam combining device | |
| CN205790934U (en) | A kind of semiconductor laser | |
| CN102931585A (en) | External-cavity-beam-combination semiconductor laser fiber coupling module | |
| CN105846311A (en) | Semiconductor laser | |
| RU2012148898A (en) | SOLID DISK-shaped LASER | |
| CN1975507A (en) | Shaping method of bar array high-power semiconductor laser added with guiding light | |
| CN207009893U (en) | Multi-tube beam combining device for single-tube semiconductor laser | |
| CN105261924A (en) | Solid-state laser generating green continuous laser and method thereof | |
| CN115954761A (en) | A multi-single-tube semiconductor laser beam combining device | |
| CN102868089B (en) | Device and method of using single-grating external cavity feedback to realize beam combination of multiple semiconductor lasers | |
| CN217087131U (en) | Blue laser based on right-angle prism space beam combination | |
| CN106785895A (en) | A kind of device that beam is closed based on photon crystal laser | |
| CN118011573A (en) | A fiber coupling system based on arcuate prism | |
| CN113783095A (en) | End-pumped solid laser | |
| CN116706689A (en) | Distributed multi-single-tube semiconductor laser beam combining device | |
| CN214411762U (en) | Grating external cavity space beam combination-based blue laser | |
| CN201903704U (en) | Coupling device for multi-wavelength and high-power semiconductor laser | |
| CN202840237U (en) | Device using single grating external cavity feedback to realize multiple semiconductor laser beam combining | |
| CN114597736B (en) | A high-energy 2940 nm pulsed disk laser based on Er | |
| CN115469463A (en) | A beam combining structure of two-dimensional laser array |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |