CN103744186A - Light beam shaping system for laser diode linear array/area array - Google Patents
Light beam shaping system for laser diode linear array/area array Download PDFInfo
- Publication number
- CN103744186A CN103744186A CN201410014563.6A CN201410014563A CN103744186A CN 103744186 A CN103744186 A CN 103744186A CN 201410014563 A CN201410014563 A CN 201410014563A CN 103744186 A CN103744186 A CN 103744186A
- Authority
- CN
- China
- Prior art keywords
- light beam
- beam shaping
- light
- quartz
- integrator
- 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.)
- Granted
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The embodiment of the invention provides a light beam shaping system for a laser diode linear array/area array. The light beam shaping system can realize the efficient coupling output of the high-power laser diode linear array/area array, the structure is simple, and the production is easy. The light beam shaping system comprises a collimating lens, a light beam shaping device, a light beam integrator and a coupling optical fiber, wherein the collimating lens is positioned at the light output end of the laser diode linear array/area array, the light beam shaping device is positioned at the light output end of the collimating lens, the light beam integrator is connected with the light output end of the light beam shaping device, the coupling optical fiber is connected with the light output end of the light beam integrator, the collimating lens is used for carrying out fast axis collimation on the linear array/area array, the light beam shaping device is used for shaping and rearranging the collimated light beams, the light beam integrator is used for focusing the light beams subjected to the shaping and rearranging, and the coupling optical fiber is used for outputting the focusing light beams. The light beam shaping system is used for the coupling output of the high-power laser diode linear array/area array.
Description
Technical field
The present invention relates to optical communication field, relate in particular to a kind of beam shaping system of laser diode linear array/face battle array.
Background technology
High power laser diode linear array/face battle array has developed into a relatively ripe stage, can be widely used in the every field such as optical communication, semiconductor laser, solid state laser, fiber laser, material processed, medical and beauty treatment, Aero-Space, military affairs; Rely on high, the line width of its electro-optical efficiency, stable and reliable for performance, volume is little, quality is light, easily modulate, the advantage such as easy of integration, attracting people's concern all the time.
But, based on the special construction of laser diode linear array/face battle array, the angle of divergence that makes its output beam is very large, and (quick shaft direction is about 40 °, slow-axis direction is about 10 °), astigmatism is serious, and the beam quality in fast and slow axis direction is widely different, be difficult to be focused into the little hot spot of justifying by common beam shaping system; The characteristic of this output beam has determined that nearly all application all must first carry out shaping, focusing to its output beam.
For the problems referred to above, various beam shaping technology emerge in an endless stream.The beam shaping system of main flow is divided three classes at present:
The first kind, micro optical array device transmission-type beam shaping system and micro optical array device reflected light beams orthopedic systems; These two kinds of orthopedic systems are all that the output beam of laser diode linear array/face battle array is cut apart, and then will cut apart the inferior Beam rotation of formation and rearrange, beam parameter product in fast and slow axis direction is reached unanimity, to improve fill factor, curve factor and the beam quality of output beam.
Equations of The Second Kind, diffractive-optical element beam shaping system; This orthopedic systems utilizes binary optical elements or microgratings array, and light beam is carried out to diffraction shaping and conversion.
The 3rd class, non-image-forming component beam shaping system; This orthopedic systems, by the conduit of Diameter Gradual Change form, directly, by light beam integration focusing, intercouples the light beam in fast and slow axis direction, to reach the object of shaping output.
Front two class beam shaping systems need to design complicated optical system, and very high to the making accuracy requirement of optical element.For the 3rd class, utilize non-image-forming component to carry out beam shaping focusing, simple and practical, focal beam spot, generally in millimeter magnitude, is relatively applicable to the pumping of solid state laser.But in manufacturing process, need to carry out surface treatment with optical grinding and polishing lathe, thereby increase the difficulty of making and the cost of whole beam shaping system.
Summary of the invention
Embodiments of the invention provide a kind of beam shaping system of laser diode linear array/face battle array, can realize high power laser diode linear array/face battle array efficient coupling output, simple in structure, be easy to produce.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of beam shaping system of laser diode linear array/face battle array is provided, described beam shaping system comprise the light output end that is positioned at laser diode linear array/face battle array collimation lens, be positioned at the beam shaping of the light output end of described collimation lens, the light beam integrator being connected with the light output end of described beam shaping and the coupled fiber being connected with the light output end of described light beam integrator; Wherein, described collimation lens is for carrying out fast axis collimation by the laser of linear array/face battle array; Described beam shaping is for resetting the beam shaping after collimation; Described light beam integrator focuses on for the light beam after shaping is reset; Described coupled fiber is for exporting the light beam after focusing on.
Optionally, described beam shaping is quartz cone array beams reshaper; Described quartz cone array beams reshaper comprises multiple taper quartz pushrods; Two bottom surfaces of each described taper quartz pushrod are disc, and the area of the first bottom surface of close described collimation lens is greater than the area near the second bottom surface of described light beam integrator; Wherein, the first bottom surface of all described taper quartz pushrods is along " one " font close-packed arrays, and the pattern that the second bottom surface of all described taper quartz pushrods forms is circle symmetrical pattern.
Further alternative, described quartz cone array beams reshaper comprises 7 taper quartz pushrods; Wherein, the pattern that the second bottom surface of described 7 taper quartz pushrods forms is symmetrical " quincunx " pattern of compact arranged circle.
Further, the length of described taper quartz pushrod is 100-200mm; The diameter of the first bottom surface of described taper quartz pushrod is 1-2mm, and the diameter of the second bottom surface of described taper quartz pushrod is 0.3-0.33mm.
Optionally, along the light output direction of described collimation lens, the projection of the first bottom surface of all described taper quartz pushrods covers the projection of described collimation lens completely.
Further, the spacing between light input end and the light output end of described collimation lens of described quartz cone array beams reshaper is 0.1-1mm.
Optionally, described light beam integrator is quartz cone light beam integrator; Two bottom surfaces of described quartz cone light beam integrator are disc, and the area of the 3rd bottom surface of close described beam shaping is greater than the area near the 4th bottom surface of described coupled fiber; Wherein, the 3rd bottom surface of described quartz cone light beam integrator fits tightly and mutually mates with the light output end of described beam shaping.
Further alternative, the length of described quartz cone light beam integrator is 100-200mm; The diameter of the 3rd bottom surface of described quartz cone light beam integrator is 0.9-1mm, and the diameter of the 4th bottom surface of described quartz cone light beam integrator is 0.125-0.2mm.
Optionally, described coupled fiber is pure silica fibre; Wherein, described pure silica fibre and described light beam integrator are welded together; The light output end of the light input end of described pure silica fibre and described light beam integrator matches.
Further alternative, the diameter of described pure silica fibre is 0.125-0.2mm.
The embodiment of the present invention provides a kind of beam shaping system of laser diode linear array/face battle array, described beam shaping system comprise the light output end that is positioned at laser diode linear array/face battle array collimation lens, be positioned at the beam shaping of the light output end of described collimation lens, the light beam integrator being connected with the light output end of described beam shaping and the coupled fiber being connected with the light output end of described light beam integrator; Wherein, described collimation lens is for carrying out fast axis collimation by the laser of linear array/face battle array; Described beam shaping is for resetting the beam shaping after collimation; Described light beam integrator focuses on for the light beam after shaping is reset; Described coupled fiber is for exporting the light beam after focusing on.
Like this, the laser of multi beam linear array/face battle array of described laser diode linear array/face battle array output can form the laser beam of strip after the major axis collimation of described collimation lens, the laser beam of this strip can be integrated into the laser beam of cluster circle after the shaping of described beam shaping is reset, the laser beam of this cluster circle just can be coupled into optical fiber after the focusing of described light beam integrator, thereby forms single beam laser.Because described single beam laser is to carry out shaping by the laser of the multi beam array arrangement to described laser diode linear array/face battle array output to obtain, therefore its brightness is very high; That is to say, through above-mentioned beam shaping system, just can realize the laser coupled of linear array/face battle array of described laser diode linear array/face battle array output is powerful single beam laser, and this beam shaping system not only has higher optical output power, and simple in structure, be easy to produce.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic diagram of the beam shaping system of a kind of laser diode linear array/face battle array that Fig. 1 provides for the embodiment of the present invention;
A kind of quartz that Fig. 2 (a) and 2 (b) provide for the embodiment of the present invention is bored the structural representation of array beams reshaper;
The structural representation of a kind of quartz pushrod that Fig. 3 (a) and 3 (b) provide for the embodiment of the present invention.
Reference numeral:
10-laser diode linear array/face battle array; 20-collimation lens; 30-(quartz cone array) beam shaping; 300-taper quartz pushrod; 301-the first bottom surface; 302-the second bottom surface; 40-(quartz cone) light beam integrator; 50-coupled fiber/pure silica fibre.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of beam shaping system of laser diode linear array/face battle array, as shown in Figure 1, described beam shaping system comprise the light output end that is positioned at laser diode linear array/face battle array 10 collimation lens 20, be positioned at the beam shaping 30 of the light output end of described collimation lens 20, the light beam integrator 40 being connected with the light output end of described beam shaping 30 and the coupled fiber 50 being connected with the light output end of described light beam integrator 40; Wherein, described collimation lens 20 is for carrying out fast axis collimation by the laser of linear array/face battle array; Described beam shaping 30 is for resetting the beam shaping after collimation; Described light beam integrator 40 focuses on for the light beam after shaping is reset; Described coupled fiber 50 is for exporting the light beam after focusing on.
It should be noted that, first, described beam shaping system is for carrying out shaping to the output beam of described laser diode linear array/face battle array 10, so that the laser of multi beam linear array/face battle array that described laser diode linear array/face battle array 10 is exported is by after this beam shaping system, can be coupled and becomes powerful single beam laser.Here, the type of described laser diode linear array/face battle array 10 is not done to concrete restriction.
Wherein, when described beam shaping system is used for the output beam of described laser diode linear array 10 to carry out shaping, the light input end of described collimation lens 20 is corresponding with the multiple laser being arranged in array, for the described multiple laser being arranged in array is carried out to fast axis collimation; When described beam shaping system is used for the output beam of described laser diode face battle array 10 to carry out shaping, the light input end of described collimation lens 20 is with to be the multiple laser that matrix arranges corresponding, for being the multiple laser that matrix arranges and carrying out fast axis collimation described.
Second, described collimation lens 20 is near the light output end setting of described laser diode linear array/face battle array 10, for the laser of linear array/face battle array is carried out to fast axis collimation, therefore, the light input end of described collimation lens 20 should be corresponding with the light output end of described laser diode linear array/face battle array 10; ; described collimation lens 20 is arranged in the light path of output beam of described laser diode linear array/face battle array 10; and along the direction of output beam, the projected area of the light input end of described collimation lens 20 needs the projected area of the light output end that can cover described laser diode linear array/face battle array 10 completely.
Here, the shape of described collimation lens 20 can be semi-cylindrical, and described half-terete surface can consist of relative rectangle plane and arc surface.Wherein, the optical input surface of described collimation lens 20 is rectangle plane, and the light gasing surface of described collimation lens 20 is arc surface; Or the optical input surface of described collimation lens 20 is arc surface, the light gasing surface of described collimation lens 20 is rectangle plane; In these cases, the minor face of described rectangle plane is parallel with the quick shaft direction of described laser diode linear array 10.
Certainly, described collimation lens 20 can also be cylindric, and now the optical input surface of described collimation lens 20 and light gasing surface are arc surface.
What no matter the form of described collimation lens 20 was above-mentioned situation is any, the focal position of the luminous point that all needs to guarantee described laser diode in described collimation lens 20, thus can carry out fast axis collimation to the laser beam of described linear array/face battle array.
The 3rd, described beam shaping 30 is for the beam shaping after collimation is reset, passing the circular light beam of strip laser beam merging of described collimation lens 20; That is to say, the shape of the light input end of described laser shaping device 30 need match with described strip light beam, and the shape of the light output end of described laser shaping device 30 need match with described circular light beam.
The 4th, described light beam integrator 40 focuses on for the light beam after above-mentioned shaping is reset, therefore, described light beam integrator 40 need be arranged in the light path of the light beam after this shaping is reset, and the light output end of the light input end of described light beam integrator 40 and described beam shaping 30 closely attaches.Further, the light input end of the light output end of described light beam integrator 40 and described coupled fiber 50 also needs tight attaching.
The 5th, for fear of unnecessary energy loss, described beam shaping 30, described light beam integrator 40 and described coupled fiber 30 preferably adopt identical material.The sharp light wavelength of sending due to laser diode is conventionally in 900nm left and right, just be positioned at quartzy transparent window (, can do not absorbed by quartz), therefore, described beam shaping 30, described light beam integrator 40 and described coupled fiber 30 preferably adopt quartzy material, thereby can prevent from being absorbed because of laser the decay that produces brightness.
The embodiment of the present invention provides a kind of beam shaping system of laser diode linear array/face battle array, described beam shaping system comprise the light output end that is positioned at laser diode linear array/face battle array 10 collimation lens 20, be positioned at the beam shaping 30 of the light output end of described collimation lens 20, the light beam integrator 40 being connected with the light output end of described beam shaping 30 and the coupled fiber 50 being connected with the light output end of described light beam integrator 40; Wherein, described collimation lens 20 is for carrying out fast axis collimation by the laser of linear array/face battle array; Described beam shaping 30 is for resetting the beam shaping after collimation; Described light beam integrator 40 focuses on for the light beam after shaping is reset; Described coupled fiber 50 is for exporting the light beam after focusing on.
Like this, the laser of multi beam linear array/face battle array that described laser diode linear array/face battle array 10 is exported can form the laser beam of strip after the major axis collimation of described collimation lens 20, the laser beam of this strip can be integrated into the laser beam of cluster circle after the shaping of described beam shaping 30 is reset, the laser beam of this cluster circle just can be coupled into optical fiber after the focusing of described light beam integrator 40, thereby forms single beam laser.Because the described single beam laser laser that is the multi beam array arrangement by described laser diode linear array/face battle array 10 is exported carries out shaping, obtain, therefore its brightness is very high; That is to say, through above-mentioned beam shaping system, the laser coupled that just can realize linear array/face battle array that described laser diode linear array/face battle array 10 is exported is powerful single beam laser, and this beam shaping system not only has higher optical output power, and simple in structure, be easy to produce.
In embodiments of the present invention, will be specifically described as an example of laser diode linear array example.
Optionally, described beam shaping 30 is quartz cone array beams reshaper 30; As shown in Fig. 2 (a) and 2 (b), described quartz cone array beams reshaper 30 comprises multiple taper quartz pushrods 300; As shown in Fig. 3 (a) and 3 (b), two bottom surfaces of each described taper quartz pushrod 300 are disc, and the area of the first bottom surface 301 of close described collimation lens 20 is greater than the area near the second bottom surface 302 of described light beam integrator 40; Wherein, the first bottom surface 301 of all described taper quartz pushrods 300 is along " one " font close-packed arrays, and the pattern that the second bottom surface 302 of all described taper quartz pushrods 300 forms is circle symmetrical pattern.
Wherein, described taper quartz pushrod 300 can be prepared by chemical corrosion method.
Here, the concrete number of the taper quartz pushrod 300 that forms described quartz cone array beams reshaper 30 is not limited.
It should be noted that, because one end of described quartz cone array beams reshaper 30 is connected with described collimation lens 20, the other end is connected with described beam shaping 40, the laser beam of the strip through major axis collimation can be integrated into the laser beam of cluster circle; Therefore, form preferably edge " one " font close-packed arrays of the first bottom surface 301 of the multiple described taper quartz pushrod 300 of described quartz cone array beams reshaper 30, so that receive the laser beam of described strip, the second bottom surface 302 that forms the multiple described taper quartz pushrod 300 of described quartz cone array beams reshaper 30 preferably forms circle symmetrical pattern, so that form the laser beam of described circle.
In order to guarantee to receive the laser beam through the described strip of fast axis collimation completely, optionally, along the light output direction of described collimation lens 20, the projection of the first bottom surface 301 of all described taper quartz pushrods 300 should cover the projection of described collimation lens 20 completely.
Like this, along the light output direction of described collimation lens 20, the area of the light input end of described quartz cone array beams reshaper 30 just can be greater than the area of the light output end of described collimation lens 20, thereby can receive the laser beam of described strip completely.
On this basis, further, the spacing between light input end and the light output end of described collimation lens 20 of described quartz cone array beams reshaper 30 can be 0.1-1mm.
By the distance between described quartz cone array beams reshaper 30 and described collimation lens 20 is reasonably set, just can make the laser beam of the described strip collimating through major axis enter fully described quartz cone array beams reshaper 30, thereby can avoid unnecessary energy loss.
Preferably, shown in figure 2 (b), described quartz cone array beams reshaper 30 comprises 7 taper quartz pushrods 300; Wherein, the pattern that the second bottom surface 302 of described 7 taper quartz pushrods 300 forms is symmetrical " quincunx " pattern of compact arranged circle.
Wherein, symmetrical " quincunx " pattern of described circle is to form by being positioned at a rounded bottom surface at center and six rounded bottom surfaces of arranging symmetrically along it around, and the center of circle of these six rounded bottom surfaces forms is shaped as regular hexagon.
When the number of described taper quartz pushrod 300 is 7, symmetrical " quincunx " pattern of circle that the second bottom surface 302 of these 7 taper quartz pushrods 300 forms is a kind of shape of solid matter; Like this, when the laser beam of described strip resets through shaping the laser beam that forms described circle, homogeneity and the closeness of its light are best.
On this basis, further preferred, the length of described taper quartz pushrod 300 can be 100-200mm; The diameter of the first bottom surface 301 of described taper quartz pushrod 300 is 1-2mm, and the diameter of the second bottom surface 302 of described taper quartz pushrod 300 is 0.3-0.33mm.
Known according to foregoing description, the center of circle of six rounded bottom surfaces of around arranging in symmetrical " quincunx " pattern of described circle forms is shaped as regular hexagon, along these orthohexagonal three principal diagonal directions, three rounded bottom surfaces of all arranging; Based on this, example, when the diameter of the second bottom surface 302 of described taper quartz pushrod 300 is 0.3mm, the pattern that the second bottom surface 302 of all described taper quartz pushrods 300 forms can be considered as the circular pattern that diameter is about 0.9mm; That is to say, the pattern of the light output end of described quartz cone array beams reshaper 30 is circular patterns that a diameter is about 0.9mm.
Hence one can see that, the light input end of described quartz cone array beams reshaper 30 is by forming along the first bottom surface 301 of 7 taper quartz pushrods 300 of " one " font close-packed arrays, and the light output end of described quartz cone array beams reshaper 30 is comprised of the second bottom surface 302 of 7 taper quartz pushrods 300 that form symmetrical " quincunx " pattern of compact arranged circle.
Described quartz cone array beams reshaper 30 structures based on above-mentioned, when the laser beam of linear array is after the fast axis collimation of described collimation lens 20, just can enter the light input end of described quartz cone array beams reshaper 30 completely, and carry out shaping rearrangement in described quartz cone array beams reshaper 30 inside, by the laser beam of strip, change conglobate laser beam, then export from the light output end of described quartz cone array beams reshaper 30; Like this, the laser beam of process fast axis collimation, when exporting from described quartz cone array beams reshaper 30, has been transformed into circular laser beam, so that enter described light beam integrator 40 completely, focuses on.
Certainly, the pattern that the second bottom surface 302 of multiple described taper quartz pushrods 300 forms can also be for other pattern, but this pattern should have good symmetry and be closely arranged in the circle of second bottom surface 302 that can be coated all described taper quartz pushrods 300; Wherein, this circle should have minimum radius.
Optionally, described light beam integrator 40 is quartz cone light beam integrator 40; Two bottom surfaces of described quartz cone light beam integrator 40 are disc, and the area of the 3rd bottom surface of close described beam shaping 30 is greater than the area near the 4th bottom surface of described coupled fiber 50; Wherein, the 3rd bottom surface of described quartz cone light beam integrator 40 fits tightly and mutually mates with the light output end of described beam shaping 30.
Here, described quartz cone light beam integrator 40 can be prepared by chemical corrosion method.
In addition can described beam shaping 30 and described quartz cone light beam integrator 40 be fixed by optical adjusting bracket, so that the 3rd bottom surface of described quartz cone light beam integrator 40 and the light output end of described beam shaping 30 closely attach.
Further, for the light output end of described quartz cone array beams reshaper 30 and the light input end of described quartz cone light beam integrator 40 are matched, optional, the length of described quartz cone light beam integrator 40 is 100-200mm; The diameter of the 3rd bottom surface of described quartz cone light beam integrator 40 is 0.9-1mm, and the diameter of the 4th bottom surface of described quartz cone light beam integrator 40 is 0.125-0.2mm.That is, the laser beam of the described circle of resetting through shaping focuses in the inside of described quartz cone light beam integrator 40, thereby can form the single beam laser that a beam diameter is 0.125-0.2mm.
Known based on foregoing description, when described beam shaping 30, described light beam integrator 40 all adopt quartzy material, can prevent in beam shaping process because laser is absorbed the decay that produces brightness; On this basis, preferred, described coupled fiber 50 is pure silica fibre 50; Wherein, described pure silica fibre 50 is welded together with described light beam integrator 40; The light output end of the light input end of described pure silica fibre 50 and described light beam integrator 40 matches.
In the case, the diameter of described pure silica fibre 50 can be 0.125-0.2mm.So just, can make the light output end of described light beam integrator 40 and the light input end of described coupled fiber 50 match, when above-mentioned circular laser beam completes after focusing through described light beam integrator 40, just can form powerful single beam laser, and be coupled into optical fiber.
Provide a specific embodiment to describe described beam shaping system below.
Concrete, described beam shaping system comprises the collimation lens 20, quartz cone array beams reshaper 30, quartz cone light beam integrator 40 and the pure silica fibre 50 that are arranged in order, for the output beam of described laser diode linear array 10 is carried out to shaping.
Described collimation lens 20 is positioned at the light-emitting area front end of described laser diode linear array 10, and the luminous point of described laser diode linear array 10 is positioned at the focal position of described collimation lens 20; Described collimation lens 20 is semi-cylindrical, and its optical input surface is rectangle plane, and light gasing surface is arc surface, and the minor face of the optical input surface of described collimation lens 20 is parallel with the quick shaft direction of described laser diode linear array 10.
Described quartz cone array beams reshaper 30 is positioned at the light output end of described collimation lens 20,7 taper quartz pushrods 300, consists of; The length of described taper quartz pushrod 300 is 100mm, and the diameter of the first bottom surface 301 of described taper quartz pushrod 300 is 1.5mm, and the diameter of the second bottom surface 302 of described taper quartz pushrod 300 is 0.3mm; The first bottom surface 301 of described 7 taper quartz pushrods 300 is along " one " font close-packed arrays, and the second bottom surface 302 of described 7 taper quartz pushrods 300 forms symmetrical " quincunx " pattern of circle; Along the light output direction of described collimation lens 20, the projection of the first bottom surface 301 of described 7 taper quartz pushrods 300 covers the projection of described collimation lens 20 completely.
Spacing between light input end and the light output end of described collimation lens 20 of described quartz cone array beams reshaper 30 is preferably as 0.5mm.
Described quartz cone light beam integrator 40 is positioned at the light output end of described quartz cone array beams reshaper 30, and fits tightly and mutually mate with the light output end of described quartz cone array beams reshaper 30; Wherein, the length of described quartz cone light beam integrator 40 is 150mm, and the diameter of the 3rd bottom surface of described quartz cone light beam integrator 40 is 0.9mm, and the diameter of the 4th bottom surface of described quartz cone light beam integrator 40 is 0.2mm.
The fibre diameter of described pure silica fibre 50 is 0.2mm; Wherein, described pure silica fibre 50 is welded together with described quartz cone light beam integrator 40.
By above-mentioned syndeton, just formed the beam shaping system of described laser diode linear array.
The laser of the multi beam array that described laser diode linear array 10 is exported can form the laser beam of strip after the major axis collimation of described collimation lens 20; The laser beam of this strip can be integrated into the laser beam of cluster circle after the shaping of described quartz cone array beams reshaper 30 is reset, and the diameter of the laser beam of described circle is about 0.9mm; The laser beam of this cluster circle forms the single beam laser that diameter is 0.2mm after the focusing of described quartz cone light beam integrator 40; This single beam laser is coupled into the pure silica fibre 50 that diameter is 0.2mm, thereby completes the coupling output of high power laser diode linear array 10.
Because the described single beam laser of the coupling output laser that is the multi beam array arrangement by described laser diode linear array 10 is exported carries out shaping, obtain, therefore its brightness is very high; That is to say, through above-mentioned beam shaping system, the laser coupled that just can realize the array arrangement that described laser diode linear array 10 is exported is powerful single beam laser, and this beam shaping system not only has higher optical output power, and simple in structure, be easy to produce.
It should be noted that, although the embodiment of the present invention is specifically described with the example that is shaped as of laser diode linear array output beam, the present invention is equally applicable to the shaping of laser diode face battle array output beam, does not repeat them here.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. the beam shaping system of laser diode linear array/face battle array, it is characterized in that, described beam shaping system comprise the light output end that is positioned at laser diode linear array/face battle array collimation lens, be positioned at the beam shaping of the light output end of described collimation lens, the light beam integrator being connected with the light output end of described beam shaping and the coupled fiber being connected with the light output end of described light beam integrator;
Wherein, described collimation lens is for carrying out fast axis collimation by the laser of linear array/face battle array;
Described beam shaping is for resetting the beam shaping after collimation;
Described light beam integrator focuses on for the light beam after shaping is reset;
Described coupled fiber is for exporting the light beam after focusing on.
2. beam shaping system according to claim 1, is characterized in that, described beam shaping is quartz cone array beams reshaper;
Described quartz cone array beams reshaper comprises multiple taper quartz pushrods; Two bottom surfaces of each described taper quartz pushrod are disc, and the area of the first bottom surface of close described collimation lens is greater than the area near the second bottom surface of described light beam integrator;
Wherein, the first bottom surface of all described taper quartz pushrods is along " one " font close-packed arrays, and the pattern that the second bottom surface of all described taper quartz pushrods forms is circle symmetrical pattern.
3. beam shaping system according to claim 2, is characterized in that, described quartz cone array beams reshaper comprises 7 taper quartz pushrods;
Wherein, the pattern that the second bottom surface of described 7 taper quartz pushrods forms is symmetrical " quincunx " pattern of compact arranged circle.
4. beam shaping system according to claim 3, is characterized in that, the length of described taper quartz pushrod is 100-200mm;
The diameter of the first bottom surface of described taper quartz pushrod is 1-2mm, and the diameter of the second bottom surface of described taper quartz pushrod is 0.3-0.33mm.
5. beam shaping system according to claim 2, is characterized in that, along the light output direction of described collimation lens, the projection of the first bottom surface of all described taper quartz pushrods covers the projection of described collimation lens completely.
6. beam shaping system according to claim 2, is characterized in that, the spacing between light input end and the light output end of described collimation lens of described quartz cone array beams reshaper is 0.1-1mm.
7. beam shaping system according to claim 1, is characterized in that, described light beam integrator is quartz cone light beam integrator;
Two bottom surfaces of described quartz cone light beam integrator are disc, and the area of the 3rd bottom surface of close described beam shaping is greater than the area near the 4th bottom surface of described coupled fiber;
Wherein, the 3rd bottom surface of described quartz cone light beam integrator fits tightly and mutually mates with the light output end of described beam shaping.
8. beam shaping system according to claim 7, is characterized in that, the length of described quartz cone light beam integrator is 100-200mm;
The diameter of the 3rd bottom surface of described quartz cone light beam integrator is 0.9-1mm, and the diameter of the 4th bottom surface of described quartz cone light beam integrator is 0.125-0.2mm.
9. beam shaping system according to claim 1, is characterized in that, described coupled fiber is pure silica fibre;
Wherein, described pure silica fibre and described light beam integrator are welded together;
The light output end of the light input end of described pure silica fibre and described light beam integrator matches.
10. beam shaping system according to claim 9, is characterized in that, the diameter of described pure silica fibre is 0.125-0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014563.6A CN103744186B (en) | 2014-01-13 | 2014-01-13 | A kind of beam shaping system of laser diode linear array/area array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014563.6A CN103744186B (en) | 2014-01-13 | 2014-01-13 | A kind of beam shaping system of laser diode linear array/area array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103744186A true CN103744186A (en) | 2014-04-23 |
| CN103744186B CN103744186B (en) | 2016-03-30 |
Family
ID=50501218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410014563.6A Active CN103744186B (en) | 2014-01-13 | 2014-01-13 | A kind of beam shaping system of laser diode linear array/area array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103744186B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707259A (en) * | 2016-12-06 | 2017-05-24 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN107526177A (en) * | 2017-09-25 | 2017-12-29 | 深圳市皓龙激光设备有限公司 | A kind of laser facula apparatus for shaping and laser lamp with shaping optical fiber |
| CN112445005A (en) * | 2019-08-29 | 2021-03-05 | 深圳市中光工业技术研究院 | Laser light source and laser light source system |
| CN112666196A (en) * | 2019-10-16 | 2021-04-16 | 北航（四川）西部国际创新港科技有限公司 | Ray integration device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016964A (en) * | 1989-10-04 | 1991-05-21 | Spectranetics Corporation | Optical fiber coupler with linear input |
| US6044096A (en) * | 1997-11-03 | 2000-03-28 | Sdl, Inc. | Packaged laser diode array system and method with reduced asymmetry |
| US6700709B1 (en) * | 2002-03-01 | 2004-03-02 | Boston Laser Inc. | Configuration of and method for optical beam shaping of diode laser bars |
| CN1511268A (en) * | 2001-05-25 | 2004-07-07 | 微阳有限公司 | Lensed tapered optical waveguide |
| CN201035230Y (en) * | 2007-04-20 | 2008-03-12 | 中国科学院上海光学精密机械研究所 | Laser beam space shaping device |
| CN101435918A (en) * | 2008-11-26 | 2009-05-20 | 北京交通大学 | Tail fiber coupling output device of laser diode array / surface array |
| CN102809822A (en) * | 2012-08-22 | 2012-12-05 | 温州泛波激光有限公司 | Beam coupling and focusing device for laser diode array |
| CN103064190A (en) * | 2012-12-28 | 2013-04-24 | 西北核技术研究所 | Flaky light beam smoothing and reshaping device |
-
2014
- 2014-01-13 CN CN201410014563.6A patent/CN103744186B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5016964A (en) * | 1989-10-04 | 1991-05-21 | Spectranetics Corporation | Optical fiber coupler with linear input |
| US6044096A (en) * | 1997-11-03 | 2000-03-28 | Sdl, Inc. | Packaged laser diode array system and method with reduced asymmetry |
| CN1511268A (en) * | 2001-05-25 | 2004-07-07 | 微阳有限公司 | Lensed tapered optical waveguide |
| US6700709B1 (en) * | 2002-03-01 | 2004-03-02 | Boston Laser Inc. | Configuration of and method for optical beam shaping of diode laser bars |
| CN201035230Y (en) * | 2007-04-20 | 2008-03-12 | 中国科学院上海光学精密机械研究所 | Laser beam space shaping device |
| CN101435918A (en) * | 2008-11-26 | 2009-05-20 | 北京交通大学 | Tail fiber coupling output device of laser diode array / surface array |
| CN102809822A (en) * | 2012-08-22 | 2012-12-05 | 温州泛波激光有限公司 | Beam coupling and focusing device for laser diode array |
| CN103064190A (en) * | 2012-12-28 | 2013-04-24 | 西北核技术研究所 | Flaky light beam smoothing and reshaping device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707259A (en) * | 2016-12-06 | 2017-05-24 | 深圳市速腾聚创科技有限公司 | Laser radar and laser radar control method |
| CN107526177A (en) * | 2017-09-25 | 2017-12-29 | 深圳市皓龙激光设备有限公司 | A kind of laser facula apparatus for shaping and laser lamp with shaping optical fiber |
| CN112445005A (en) * | 2019-08-29 | 2021-03-05 | 深圳市中光工业技术研究院 | Laser light source and laser light source system |
| CN112445005B (en) * | 2019-08-29 | 2023-08-11 | 深圳市中光工业技术研究院 | Laser light source and laser light source system |
| CN112666196A (en) * | 2019-10-16 | 2021-04-16 | 北航（四川）西部国际创新港科技有限公司 | Ray integration device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103744186B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204885804U (en) | Multi -wavelength raman laser who restraints module and have this module is closed to narrow linewidth | |
| CN107615601B (en) | Laser module and laser processing device | |
| CN103299232B (en) | For the profile of laser emission to be converted into the equipment of the laser emission with rotational symmetric intensity distributions | |
| CN105759411B (en) | Fiber coupled laser, fiber coupled laser system and its optimization method | |
| CN104956555A (en) | Semiconductor laser device | |
| CN104868362A (en) | Light source system and laser light source | |
| CN102208753A (en) | External cavity semiconductor laser with multi-wavelength combination | |
| CN105340140B (en) | Laser aid | |
| CN103913937A (en) | Lighting device and relative projection system thereof | |
| CN103744186B (en) | A kind of beam shaping system of laser diode linear array/area array | |
| US10048576B2 (en) | Laser light source and projection display device | |
| US11061244B2 (en) | Collimated light generating apparatus | |
| CN103346474A (en) | Beam combining device of semiconductor laser unit tube cores | |
| CN101435918A (en) | Tail fiber coupling output device of laser diode array / surface array | |
| CN204067850U (en) | A kind of beam merging apparatus of semiconductor laser tube core | |
| CN104678557A (en) | Stabilization of high-power wavelength beam combining system | |
| CN204215068U (en) | A kind of multiwavelength laser coupled optical device | |
| KR102198779B1 (en) | Device for generating laser radiation having a linear intensity distribution | |
| CN204631362U (en) | Semiconductor laser beam collimator apparatus | |
| CN104600566A (en) | High beam quality of semiconductor laser array beam combination device | |
| CN103499882A (en) | Rectangular spot shaping device using light cone | |
| CN103424868A (en) | Laser coupling unit, laser coupling module and laser light source module | |
| CN103326237B (en) | Method for designing two-dimensional stack of high power semiconductor laser device with symmetrical light beam quality | |
| CN102208740A (en) | Nanosecond pulse fiber laser with circle structure | |
| WO2021208996A1 (en) | Laser light source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |