CN103490267A - Laser module - Google Patents
Laser module Download PDFInfo
- Publication number
- CN103490267A CN103490267A CN201310450024.2A CN201310450024A CN103490267A CN 103490267 A CN103490267 A CN 103490267A CN 201310450024 A CN201310450024 A CN 201310450024A CN 103490267 A CN103490267 A CN 103490267A
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- Prior art keywords
- laser
- lasers
- module according
- lens
- optical fiber
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Classifications
-
- 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
-
- 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
- G02B6/4286—Optical modules with optical power monitoring
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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
-
- 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
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02251—Out-coupling of light using optical fibres
-
- 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
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/023—Mount members, e.g. sub-mount members
- H01S5/02325—Mechanically integrated components on mount members or optical micro-benches
-
- 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)
- Semiconductor Lasers (AREA)
Abstract
The invention discloses a laser module. The laser module comprises a laser device base, a plurality of laser devices, a focus lens barrel and an optical fiber socket, wherein the laser devises can be installed in the laser device base, the heat dissipation requirement of the laser devices can be met, and collimating lenses can be installed in the laser device base; the laser devices can be semiconductor laser devices or solid laser devices, a focus lens set is located in the focus lens barrel, and an optical fiber plug can be an SMA or other optical fiber standard plug. Beams emitted by the laser devices are collimated parallel light through the collimating lenses, enter an optical fiber after being coupled through the focus lens barrel, and enter a laser display system after being transmitted through the optical fiber. The laser devices in the laser module are coupled into the same optical fiber through a multiple-piece or aspheric-surface coupling system, the structure is in modular design and relatively compact, processing cost of components and parts is low, installation processes are simple, and the laser module is suitable for large-scale production and meets the low-cost requirement of laser display.
Description
Technical field
The invention belongs to the LASER Light Source field, relate to a kind of laser module, particularly a kind of laser module for multi-laser coupling fiber output, target application is laser display light-source system used.
Background technology
Special parameter due to visible laser, red blue light is semiconductor laser, luminous power is only the go out luminous powers of hundred milliwatts to watt magnitude, green (light) laser is frequency double laser, going out luminous power is watt magnitude, the light source that three look lasers show as high brightness laser need to be brought together use by a plurality of lasers while using, and current technology is mainly that a plurality of red blue-green Laser are coupled in an optical fiber, then multifiber is combined into to a branch of follow-up optical projection system that enters.In the laser module of existing laser display light source, for semiconductor laser, difference due to the beam characteristics on the laser both direction, mostly adopted the mode of a plurality of cylindrical lenses to compress coupled light beam, the manufacturing cost of cylindrical lens is high, and assembly technology is complicated, location difficulty, is not suitable for standardization and produces.For diode pumped solid state laser, because single laser volume is larger, be difficult to make the laser coupled from a plurality of (being greater than 2) laser to enter among an optical fiber, limit the usage quantity of laser in laser display light source, thereby limited the maximum display brightness of laser display system.
Summary of the invention
The present inventor considers the above-mentioned situation of prior art and has made the present invention, main purpose of the present invention is to overcome shortcoming and the diode pumped solid state laser that in the amasthenic lens system of prior art, the eyeglass manufacturing cost is too high, assembly technology is complicated and is difficult to the defect that multichannel is coupled, and a kind of semiconductor laser and the shared laser module of diode pumped solid state laser are provided, it has simple in structure, with low cost, the simple advantage of manufacturing process.The field of main application is the visible light source system that laser display is used.
According to an aspect of the present invention, provide a kind of module of the laser for optical projection system, it comprises: laser base wherein is equipped with a plurality of lasers; The amasthenic lens system, be used for the Laser Focusing that described a plurality of lasers are sent from described laser base; Fiber-optical socket, it is connected between amasthenic lens system and optical fiber, for the laser coupled after focusing on via described amasthenic lens system, to optical fiber, and delivers to optical projection system via optical fiber transmission; And the Feedback of Power system, be used for the power of the laser from the output of amasthenic lens system is detected, and regulate the laser output power of described a plurality of lasers according to testing result.
Advantage beneficial effect major embodiment of the present invention is in the following areas: collimating lens and condenser lens that the laser module in the present invention is used all can be globe lens, the laser base of this form can meet the installation of semiconductor laser TO packaged type and diode pumped solid state laser simultaneously, after two kinds of lasers are arranged on base, follow-up focusing barrel can be general, improve the consistency of part, effectively reduce production cost.The all parts simple structure of this laser module, so its low processing cost on the whole, assembling are simple, highly versatile, the large-scale low-cost production of very applicable laser display light source.
The accompanying drawing explanation
The base scheme schematic diagram of the semiconductor laser that Fig. 1 is laser module according to an embodiment of the invention;
The base scheme schematic diagram of the semiconductor solid state laser that Fig. 2 is laser module according to an embodiment of the invention;
The structural representation of the amasthenic lens system that Fig. 3 is laser module according to an embodiment of the invention;
The structural representation of the Feedback of Power system that Fig. 4 is laser module according to an embodiment of the invention.
Embodiment
Below enumerate preferred embodiment of the present invention, and carry out by reference to the accompanying drawings the clearer the present invention that intactly illustrates.
The base scheme schematic diagram of the semiconductor laser that Fig. 1 is laser module according to an embodiment of the invention.As shown in Figure 1, the laser base in the present embodiment 1 comprises: semiconductor laser fixed structure 2; Collimating lens mounting structure 3; Be arranged on seven semiconductor lasers 4 in fixed structure 2; Collimating lens 5, it is globe lens, be placed in collimating lens mounting structure 3, it between the diameter of collimating lens mounting structure 3 and collimating lens, is unidimensional loose fit tolerance, collimating lens utilizes glue or Welding Structure to fix position, obtain seven bundle collimation output beams, described seven bundle collimation output beams are parallel to each other (outgoing in the same way), and the collimated light beam that seven bundles are parallel to each other can guarantee that light beam obtains the focal beam spot of a diameter minimum after the amasthenic lens system on projection surface.The distance be arranged between the laser in fixed structure is to set up model according to the luminous power of existing visible waveband laser and the coefficient of heat transfer of submount material, calculates simulation and draws concrete numerical value.This embodiment for visible laser be the visible laser that luminous power 1W, the manufactured materials of base is 6061 aluminium alloys, through modeling Simulation, calculate, phase mutual edge distance between laser in fixed structure 2 can be in 6.1 to 8.1mm scope, be preferably 7.1mm(with the laser center calculation), on the basis of determining this distance, focal length ratio between design collimating lens and amasthenic lens, go thereby the hot spot of 7 visible light semiconductor lasers can be focused in the Transmission Fibers of core diameter 400um.
The base scheme schematic diagram of the semiconductor solid state laser that Fig. 2 is laser module according to an embodiment of the invention.As shown in Figure 2, laser base 6 according to another embodiment of the present invention comprises diode pumped solid state laser fixed structure 7, six diode pumped solid state lasers 8 are installed in fixed structure 7, radiating requirements (bottom surface is radiating surface) due to large-power semiconductor ripple solid state laser, therefore need diode pumped solid state laser 8 to obtain the light beam output perpendicular to bottom surface by 45 ° of inner speculums, obtain six bundle collimation output beams, being limited in diameter 12mm or less circular scope of this six bundles collimated light beam, described six bundle collimation output beams are perpendicular to base the output that is parallel to each other, the collimated light beam that six bundles are parallel to each other can guarantee that light beam obtains a hot spot that focus coincides together after following amasthenic lens system on focus, thereby can be coupled in optical fiber.The technical scheme of this embodiment can be applicable to existing demonstration relatively high power green (light) laser.
The structural representation of the amasthenic lens system that Fig. 3 is laser module according to an embodiment of the invention.As shown in Figure 3, comprise lens barrel structure 9, the focus lens group formed by condenser lens 10 and 11 according to the amasthenic lens system in embodiments of the invention.Condenser lens 10 and 11 is installed in lens barrel structure 9, guarantee the concentricity of two lens by lens barrel structure 9, between two condenser lenses 10 and 11, utilize spacer ring to guarantee the phase mutual edge distance, this distance is carried out analog computation by softwares such as ZEMAX, thereby realize the basic function focused on, effectively eliminate the unfavorable factors such as spherical aberration, effectively improved coupling effect.This focus lens group can be also a slice lens or multi-disc lens more, is not limited only to two.
The structural representation of the Feedback of Power system that Fig. 4 is laser module according to an embodiment of the invention.As shown in Figure 4, the Feedback of Power system in the present embodiment is installed in lens barrel structure 9 inside, and it comprises light splitting piece 13, photodiode 14, control circuit 15.Light splitting piece 13 is fixed on lens barrel 9 inside by a base, with light direction angle at 45 °, the reflectivity of light splitting piece 13 choose the parameter that needs reference photodiode 14, measure threshold value and be as the criterion to be no more than.The installation site of photodiode 14 determined by light splitting piece 13, and light beam is with through inciding and be as the criterion on photodiode 14 after light splitting piece 13 reflections, and position accuracy demand is lower.Output beam is by light splitting piece 13 reflections, part light is exported on photodiode 14, photodiode 14 is electronic simulation signal (relevant to light intensity) by light energy conversion, be transferred to control circuit 15 by control circuit, the power stage of laser monitored or controls by control circuit 15 according to the electronic simulation signal obtained.In addition, transmission is coupled in optical fiber, enters follow-up optical projection system by the laser of light splitting piece 13.
By upper, laser base can be supported 7 semiconductor lasers or 6 diode pumped solid state lasers according to an embodiment of the invention, and this laser base can meet the heat radiation requirement of laser, and provides location for the installation of collimating lens.
Wherein, semiconductor laser output facula close-packed arrays, output beam forms arrangement mode the most closely according to hexagon, and semiconductor laser output beams collimates by non-spherical lens.
Wherein, diode pumped solid state laser output facula close-packed arrays, output beam forms arrangement mode the most closely according to hexagon.
Amasthenic lens comprises lens barrel, and multiple-piece Lens Coupling system or Aspheric lenses coupler system, can effectively reduce the unfavorable factors such as spherical aberration, distortion.
Fiber-optical socket accesses Transmission Fibers fast for the laser module, can be complementary according to different demands and various standard plug.
The Feedback of Power system, it comprises photodiode and supporting control circuit, for the power output of monitoring or control laser module, can obtain the Laser output of power invariability.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these execution modes.Therefore, protection scope of the present invention is limited by appended claims.
In sum, those skilled in the art will appreciate that and can make various modifications, modification and replace the above embodiment of the present invention, it all falls into the protection scope of the present invention limited as claims.
Claims (10)
1. the module of the laser for optical projection system, it comprises:
Laser base, wherein be equipped with a plurality of lasers;
The amasthenic lens system, be used for the Laser Focusing that described a plurality of lasers are sent from described laser base;
Fiber-optical socket, it is connected between amasthenic lens system and optical fiber, for the laser coupled after focusing on via described amasthenic lens system, to optical fiber, and delivers to optical projection system via optical fiber transmission; And
The Feedback of Power system, be used for the power of the laser from the output of amasthenic lens system is detected, and regulate the laser output power of described a plurality of lasers according to testing result.
2. laser module according to claim 1, wherein, described laser base also comprises laser fixed structure, collimating lens mounting structure and is arranged on the collimating lens in described collimating lens mounting structure, and described a plurality of lasers are installed in described laser fixed structure.
3. laser module according to claim 1, wherein, described collimating lens is globe lens, described amasthenic lens system is comprised of multiple-piece set of lenses or non-spherical lens.
4. laser module according to claim 1, wherein, described collimating lens is globe lens, described amasthenic lens system is comprised of globe lens.
5. laser module according to claim 1, wherein, described a plurality of lasers are arranged in the convergence shape along circular radius, the common center of circle of pointing to described circle of the laser sent from described a plurality of lasers,
Described laser base also comprises and described a plurality of lasers a plurality of speculums one to one, each self-reflection of laser that is used for sending from described a plurality of lasers, outputs in parallel with each other described amasthenic lens system.
6. laser module according to claim 5, wherein, described a plurality of laser is 6 diode pumped solid state lasers, and via 6 bundle laser vertical also outputs parallel to each other in the laser base bottom surface of described mirror reflects, the mutual spacing of described 6 bundle laser is less than 12 millimeters.
7. laser module according to claim 1, wherein, described a plurality of lasers are visible lasers of semiconductor laser, solid state laser or other types.
8. laser module according to claim 1, wherein, described Feedback of Power system comprises light splitting piece, photodiode and the control circuit of reflecting part laser,
And, described Feedback of Power system utilizes described photodiode to carry out power detection to the laser of described light splitting piece reflection, and the signal of telecommunication corresponding with laser power of described photodiode output is sent to described control circuit, thereby calculate the power of the laser that the amasthenic lens system exports.
9. laser module according to claim 1, wherein, described fiber-optical socket is SMA905 or FC standard plug.
10. laser module according to claim 2, wherein, described a plurality of laser is 7 semiconductor lasers that are arranged in described laser fixed structure, it between the diameter of described collimating lens mounting structure and collimating lens, is unidimensional loose fit tolerance, utilize glue or Welding Structure to fix the position of described collimating lens, from seven bundle laser of 7 semiconductor laser outputs, be parallel to each other, described 7 semiconductor lasers are fixed on orthohexagonal six summits and hexagonal center in described laser fixed structure, the described orthohexagonal length of side is 6.1 millimeters to 8.1 millimeters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450024.2A CN103490267A (en) | 2013-09-27 | 2013-09-27 | Laser module |
| PCT/CN2014/087674 WO2015043521A1 (en) | 2013-09-27 | 2014-09-28 | Laser module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450024.2A CN103490267A (en) | 2013-09-27 | 2013-09-27 | Laser module |
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| CN103490267A true CN103490267A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450024.2A Pending CN103490267A (en) | 2013-09-27 | 2013-09-27 | Laser module |
Country Status (2)
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| WO (1) | WO2015043521A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051951A (en) * | 2014-06-04 | 2014-09-17 | 西安电子科技大学 | Combined module type blue light semi-conductor laser |
| WO2015043521A1 (en) * | 2013-09-27 | 2015-04-02 | 深圳极光世纪科技有限公司 | Laser module |
| CN105896260A (en) * | 2015-11-19 | 2016-08-24 | 中国工程物理研究院应用电子学研究所 | Optical fiber laser beam combiner |
| CN108650444A (en) * | 2018-05-29 | 2018-10-12 | 努比亚技术有限公司 | Camera module and terminal |
| CN109560452A (en) * | 2017-09-26 | 2019-04-02 | 青岛海信激光显示股份有限公司 | A kind of laser array and laser light source |
| CN111458802A (en) * | 2020-05-06 | 2020-07-28 | 武汉锐科光纤激光技术股份有限公司 | Light beam coupling device and coupling method thereof |
| CN113125006A (en) * | 2021-04-16 | 2021-07-16 | 杭州中科极光科技有限公司 | Light source module optical power measurement system, optical power measurement method and device |
| CN113363802A (en) * | 2021-01-29 | 2021-09-07 | 安徽科技学院 | High-power semiconductor laser lens cooling system |
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| CN106769866A (en) * | 2016-12-28 | 2017-05-31 | 吉林大学 | A kind of biochip objective table |
| CN109884754A (en) * | 2019-04-23 | 2019-06-14 | 苏州海光芯创光电科技有限公司 | A kind of coupled structure and encapsulating structure of laser and silicon optical chip |
| CN110586939A (en) * | 2019-10-28 | 2019-12-20 | 华南理工大学 | Blue-green laser micro-melting forming method and device for high-reflection material |
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| CN103490267A (en) * | 2013-09-27 | 2014-01-01 | 深圳极光世纪科技有限公司 | Laser module |
| CN203553607U (en) * | 2013-09-27 | 2014-04-16 | 深圳极光世纪科技有限公司 | Laser module group |
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| CN101144876A (en) * | 2006-09-13 | 2008-03-19 | 中国科学院光电研究院 | Laser homogenizing coupler device for laser display |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015043521A1 (en) * | 2013-09-27 | 2015-04-02 | 深圳极光世纪科技有限公司 | Laser module |
| CN104051951A (en) * | 2014-06-04 | 2014-09-17 | 西安电子科技大学 | Combined module type blue light semi-conductor laser |
| CN105896260A (en) * | 2015-11-19 | 2016-08-24 | 中国工程物理研究院应用电子学研究所 | Optical fiber laser beam combiner |
| CN105896260B (en) * | 2015-11-19 | 2019-01-15 | 中国工程物理研究院应用电子学研究所 | Fiber laser combiner |
| CN109560452A (en) * | 2017-09-26 | 2019-04-02 | 青岛海信激光显示股份有限公司 | A kind of laser array and laser light source |
| CN108650444A (en) * | 2018-05-29 | 2018-10-12 | 努比亚技术有限公司 | Camera module and terminal |
| CN111458802A (en) * | 2020-05-06 | 2020-07-28 | 武汉锐科光纤激光技术股份有限公司 | Light beam coupling device and coupling method thereof |
| CN111458802B (en) * | 2020-05-06 | 2024-02-13 | 武汉锐科光纤激光技术股份有限公司 | Light beam coupling device and coupling method thereof |
| CN113363802A (en) * | 2021-01-29 | 2021-09-07 | 安徽科技学院 | High-power semiconductor laser lens cooling system |
| CN113363802B (en) * | 2021-01-29 | 2022-09-27 | 安徽科技学院 | High-power semiconductor laser lens cooling system |
| CN113125006A (en) * | 2021-04-16 | 2021-07-16 | 杭州中科极光科技有限公司 | Light source module optical power measurement system, optical power measurement method and device |
| CN113125006B (en) * | 2021-04-16 | 2024-05-14 | 杭州中科极光科技有限公司 | Light source module optical power measurement system, optical power measurement method and device |
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| Publication number | Publication date |
|---|---|
| WO2015043521A1 (en) | 2015-04-02 |
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