CN220820380U - High-power laser polarization beam combining device - Google Patents
High-power laser polarization beam combining device Download PDFInfo
- Publication number
- CN220820380U CN220820380U CN202322709276.4U CN202322709276U CN220820380U CN 220820380 U CN220820380 U CN 220820380U CN 202322709276 U CN202322709276 U CN 202322709276U CN 220820380 U CN220820380 U CN 220820380U
- Authority
- CN
- China
- Prior art keywords
- laser
- lens group
- group
- shaping
- wave plate
- 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
- 230000010287 polarization Effects 0.000 title claims abstract description 44
- 238000007493 shaping process Methods 0.000 claims abstract description 82
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000002457 bidirectional effect Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Abstract
The utility model discloses a high-power laser polarization beam combining device, which comprises a shell and a laser polarization beam combining mechanism, wherein the shell comprises a base and a cover body, and further comprises a plurality of groups of lasers, a first beam combining lens group, a lens shaping mechanism, a second beam combining lens group and a light adjusting lens group which are sequentially arranged on the base along the light path propagation direction of a laser source, and an integrally formed radiating fin is arranged below the base. The utility model combines two beams of laser with opposite polarization states by utilizing a wave plate and a polaroid, then collimates the directions of a fast axis and a slow axis of the laser beam by using a shaping lens group based on a bidirectional shaping technology, so that the divergence angle of the two directions is close to 0, and then deflects and reflects the beams by 90 degrees through a row of reflectors arranged at fixed intervals, so that a plurality of discrete narrow beams are arranged into a beam similar to one beam, the beams are almost completely overlapped, and the laser output energy is doubled under the condition of not increasing the light spot size.
Description
Technical Field
The utility model relates to the field of laser beam combining devices, in particular to a high-power laser polarization beam combining device.
Background
The existing 40W desktop level laser beam shaping technology mainly comprises the following steps:
Fac+sac scheme: the two convex cylindrical lenses with the vertical main axes are used for carrying out bidirectional shaping on laser beams, the convex cylindrical lenses with the collimation fast axes are FAC, and the convex cylindrical lenses with the collimation slow axes are SAC, so that the collimation of light diverged in the two vertical directions can be realized. However, the FAC needs TO be closely attached TO the laser light emitting chip TO achieve a better effect, however, in the TO package of the laser diode, the light emitting chip is protected inside by the protection window, so that the protection window needs TO be removed TO closely attach the FAC TO the light outlet of the light emitting chip. The operation of dismantling the protection window has extremely high risk of light source failure, the requirements of the laser diode light emitting chip on the packaging environment and packaging measures are very strict, and the laser adopting the shaping technology has extremely high technical threshold of preparation and high production cost.
The hybrid light combining technology comprises the steps of spatial light combining and then superposition of polarized light combining: the space light combination of the 40W laser is to reflect a plurality of laser beams with two groups of 4 shaped beams to be closely arranged, so that the parallel beams output by the laser are similar to one laser beam, and the output power of the laser is in direct proportion to the number of laser diode light sources. However, in this technology, the two groups of light beams with good spatial light combination are combined, and the polarization state of one group is changed by using a wave plate, so that the original 8 narrow light beam light outputs are compressed into 4 narrow light beam light outputs, the light beams are not completely overlapped, and the light spot size is larger. In addition, the mode of spatial light combination and then polarization light combination is overlapped, so that the light spot energy density can be maximized, but if the space control of the light beams is not good, the polarization light combination is not ideal, and more than 4 narrow light beams emit light.
Disclosure of utility model
Based on this, the utility model aims to provide a high-power laser polarization beam combining device, which combines two lasers with opposite polarization states by using a wave plate and a polaroid, then collimates the fast axis and the slow axis directions of the laser beams by using a shaping lens group based on a bidirectional shaping technology, so that the divergence angles of the two directions are close to 0, and then deflects and reflects the beams by 90 degrees by a row of reflecting mirrors arranged at fixed intervals, so that a plurality of discrete narrow beams are arranged to be similar to one beam, the almost complete superposition of the beams is realized, and the output energy of the laser is doubled under the condition that the spot size is not increased.
The aim of the utility model is achieved by the following technical scheme:
The high-power laser polarization beam combining device comprises a shell and a laser polarization beam combining mechanism, wherein the shell comprises a base and a cover body, and the laser polarization beam combining mechanism comprises a laser source, a first beam combining lens group, a lens shaping mechanism, a second beam combining lens group and a light adjusting lens group;
The laser source comprises a first laser group, a second laser group, a third laser group and a fourth laser group,
The first light combining lens group comprises a first half-wave plate, a first polaroid, a second half-wave plate, a second polaroid, a third half-wave plate, a third polaroid, a fourth half-wave plate and a fourth polaroid;
The lens shaping mechanism comprises a first shaping lens group, a second shaping lens group, a third shaping lens group and a fourth shaping lens group;
the second light combining lens group comprises a first reflecting mirror, a second reflecting mirror, a third reflecting mirror and a fourth reflecting mirror;
The first half wave plate, the first polaroid, the first shaping lens group and the first reflecting mirror are sequentially arranged on the base along the light path propagation direction of the first laser group,
The second half wave plate, the second polaroid, the second shaping lens group and the second reflecting mirror are sequentially arranged on the base along the light path propagation direction of the second laser group;
the third half wave plate, the third polaroid, the third shaping lens group and the third reflecting mirror are sequentially arranged on the base along the light path propagation direction of the third laser group;
The fourth half wave plate, the fourth polarizing plate, the fourth shaping lens group and the fourth reflecting mirror are sequentially arranged on the base along the light path propagation direction of the fourth laser group;
and an integrally formed radiating fin is further arranged below the base.
Further, the first laser group is composed of a first laser and a second laser which are vertically arranged, the second laser group is composed of a third laser and a fourth laser which are vertically arranged, the third laser group is composed of a fifth laser and a sixth laser which are vertically arranged, the fourth laser group is composed of a seventh laser and an eighth laser which are vertically arranged, the first laser, the third laser, the fifth laser and the seventh laser are mounted on the side wall of the base, and the second laser, the fourth laser, the sixth laser and the eighth laser are mounted on the bottom of the base.
Further, the first polaroid and the first laser and the second laser are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the second laser and correspond to the light path propagation direction of the first laser; the second polaroid and the third laser and the fourth laser are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the fourth laser and correspond to the light path propagation direction of the third laser; the third polaroid and the fifth laser and the sixth laser are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the sixth laser and correspond to the light path propagation direction of the fifth laser; the fourth polaroid, the seventh laser and the eighth laser are arranged at an oblique angle of 45 degrees at the same time, and are arranged in front of the light emitting side of the eighth laser and correspond to the light path propagation direction of the seventh laser.
Further, the first half-wave plate is disposed directly in front of the second laser, the second half-wave plate is disposed directly in front of the fourth laser, the third half-wave plate is disposed directly in front of the sixth laser, and the fourth half-wave plate is disposed directly in front of the eighth laser.
Further, the method comprises the steps of,
The first shaping lens group, the second shaping lens group, the third shaping lens group and the fourth shaping lens group are sequentially composed of a first plano-convex cylindrical lens, a first plano-concave cylindrical lens, a second plano-concave cylindrical lens and a second plano-convex cylindrical lens.
Further, the method comprises the steps of,
The first reflecting mirror is obliquely projected in front of the light emitting side of the first shaping lens group,
The second reflecting mirror is obliquely shot in front of the light emitting side of the second shaping lens group,
The third reflecting mirror is obliquely shot in front of the light emitting side of the third shaping lens group,
The fourth reflecting mirror is obliquely shot in front of the light emitting side of the fourth shaping lens group.
Further, the dimming mirror group comprises a fifth reflecting mirror and a sixth reflecting mirror which are arranged in parallel.
Further, the laser device also comprises a lens which is arranged on the shell along the light path propagation direction of the laser source.
Further, the base and the cover are fixed through screws.
Further, the first light combining lens group, the lens shaping mechanism, the second light combining lens group and the dimming lens group are sequentially arranged on the base along the light path propagation direction of the laser source.
The beneficial effects of the utility model are as follows:
In the utility model, the first laser and the second laser are placed for polarization beam combination, the polarization state of the second laser is changed by the first half wave plate, so that the polarization states of the first laser and the second laser are opposite, the polarizer is adjusted to a 45-degree position, and the two perpendicular lasers are combined at the polarizer. And the third laser, the fourth laser, the fifth laser, the sixth laser, the seventh laser and the eighth laser are polarized and combined in pairs, the fast axis and the slow axis of the laser beams are collimated by a shaping lens group based on a bidirectional shaping technology, so that the divergence angles of the two directions are close to 0, 4 discrete narrow beams are arranged to be approximate to one beam through 90-degree deflection reflection of a row of reflectors arranged at fixed intervals, the light emitting positions of the two reflectors are adjusted, and finally the shaped and combined laser is converged into one point through a focusing lens. The utility model can realize almost complete superposition of light beams and double the output energy of laser without increasing the size of light spots.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;
FIG. 3 is a schematic view of the internal structure of the present utility model;
FIG. 4 is a schematic diagram of the optical path shaping principle of the present utility model;
FIG. 5 is a schematic diagram of a laser polarization beam combining mechanism according to the present utility model;
Reference numerals: 1-base, 2-cover, 3-laser polarization beam combining mechanism, 4-lens, 11-heat dissipating fin, 31-laser source, 32-first combining lens group, 33-lens shaping mechanism, 34-second combining lens group, 35-dimming lens group, LD 1-first laser, LD 2-second laser, LD 3-third laser, LD 4-fourth laser, LD 5-fifth laser, LD 6-sixth laser, LD 7-seventh laser, LD 8-eighth laser, 321-first polarizer, 322-second polarizer, 323-third polarizer, 324-fourth polarizer, 331-first shaping lens group, 332-second shaping lens group, 333-third shaping lens group, 334-fourth shaping lens group, 341-first mirror, 342-second mirror, 343-third mirror, 344-fourth mirror; 351-fifth mirror, 352-sixth mirror.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, and are constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected via an intermediary, or connected by communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Please refer to fig. 1-2:
The utility model relates to a high-power laser polarization beam combining device, which comprises a shell, a laser polarization beam combining mechanism 3 and a lens 4, wherein the shell comprises a base 1 and a cover body 2, the base 1 and the cover body 2 are fixed through screws, the laser polarization beam combining mechanism 3 is arranged on the base 1, and the lens 4 is arranged on the shell.
Please refer to fig. 1-5:
The laser polarization beam combining mechanism 3 comprises a laser source 31, a first light combining lens set 32, a lens shaping mechanism 33, a second light combining lens set 34 and a light adjusting lens set 35, wherein the first light combining lens set 32, the lens shaping mechanism 33, the second light combining lens set 34 and the light adjusting lens set 35 are sequentially arranged on a base 1 along the light path transmission direction of the laser source 31, and an integrally formed radiating fin 11 is further arranged below the base 1.
In the present utility model, the laser source 31 includes a first laser group, a second laser group, a third laser group, and a fourth laser group; the first light combining lens group 32 includes a first half-wave plate and a first polarizer 321, a second half-wave plate and a second polarizer 322, a third half-wave plate and a third polarizer 323, a fourth half-wave plate and a fourth polarizer 324; the lens shaping mechanism 33 includes a first shaping lens group 331, a second shaping lens group 332, a third shaping lens group 333, and a fourth shaping lens group 334; the second light combining mirror group 34 includes a first mirror 341, a second mirror 342, a third mirror 343, and a fourth mirror 344; the light adjusting group 35 includes a fifth mirror 351 and a sixth mirror 352 disposed in parallel.
In the utility model, a first half-wave plate, a first polaroid 321, a first shaping lens group 331 and a first reflecting lens 341 are sequentially arranged on a base 1 along the light path propagation direction of a first laser group, and a second half-wave plate, a second polaroid 322, a second shaping lens group 332 and a second reflecting lens 342 are sequentially arranged on the base 1 along the light path propagation direction of a second laser group; the third half-wave plate, the third polarizing plate 323, the third shaping mirror group 333, and the third reflecting mirror 343 are sequentially disposed on the base 1 along the optical path propagation direction of the third laser group; the fourth half-wave plate, the fourth polarizer 324, the fourth shaping mirror set 334, and the fourth mirror 344 are disposed on the base 1 in order along the optical path propagation direction of the fourth laser set.
In the utility model, a first laser group consists of a first laser LD1 and a second laser which are vertically arranged, a second laser group consists of a third laser LD3 and a fourth laser which are vertically arranged, a third laser group consists of a fifth laser LD5 and a sixth laser LD6 which are vertically arranged, a fourth laser group consists of a seventh laser LD7 and an eighth laser LD8 which are vertically arranged, the first laser LD1, the third laser LD3, the fifth laser LD5 and the seventh laser LD7 are arranged on the side wall of the base 1, and the second laser LD2, the fourth laser LD4, the sixth laser LD6 and the eighth laser LD8 are arranged on the bottom of the base 1.
In the utility model, the first laser LD1, the second laser LD2, the third laser LD3, the fourth laser LD4, the fifth laser LD5, the sixth laser LD6, the seventh laser LD7 and the eighth laser LD8 are all semiconductor laser diodes, and an aspheric collimating mirror is arranged in the semiconductor laser diodes.
In the utility model, a first half wave plate is arranged right in front of a second laser LD2, and a first polaroid 321, the first laser LD1 and the second laser LD2 are arranged at an oblique angle of 45 degrees at the same time, and are arranged in front of the light emitting side of the second laser LD2 and correspond to the light path propagation direction of the first laser LD 1; the second half-wave plate is arranged right in front of the fourth laser LD4, and the second polarizing plate 322, the third laser LD3 and the fourth laser LD4 are arranged at an oblique angle of 45 degrees at the same time, and are arranged in front of the light emitting side of the fourth laser LD4 and correspond to the light path propagation direction of the third laser LD 3; the third half-wave plate is arranged right in front of the sixth laser LD6, and the third polarizing plate 323, the fifth laser LD5 and the sixth laser LD6 are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the sixth laser LD6 and correspond to the light path propagation direction of the fifth laser LD 5; the fourth half-wave plate is disposed right in front of the eighth laser LD8, and the fourth polarizing plate 324, the seventh laser LD7 and the eighth laser LD8 are simultaneously disposed at an oblique angle of 45 ° in front of the light emitting side of the eighth laser LD8 and correspond to the propagation direction of the optical path of the seventh laser LD 7. The first half-wave plate, the second half-wave plate, the third half-wave plate and the fourth half-wave plate are arranged right in front of the laser, and therefore are not shown in the figure.
Wherein,
The half-wave plate has optical rotation function, and converts the laser from the P polarization state to the S polarization state or from the S polarization state to the P polarization state, and the polarizer performs polarization beam combination on the light beams of each laser group.
The first half-wave plate and the first polarizer 321 are used for synthesizing the two laser beams projected by the first laser LD1 and the second laser LD2 into a first laser beam by polarization synthesis, so that the spot size is unchanged, and the laser energy is doubled.
The second half-wave plate and the second polarizer 322 are used for carrying out polarization combination on the two laser beams projected by the third laser LD3 and the fourth laser LD4 to synthesize a second laser beam, so that the spot size is unchanged, and the laser energy is doubled.
The third half-wave plate and the third polarizing plate 323 are used for synthesizing the two laser beams projected by the fifth laser LD5 and the sixth laser LD6 into a third laser beam by polarization synthesis, so that the spot size is unchanged, and the laser energy is doubled.
The fourth half-wave plate and the fourth polarizer 324 are used for performing polarization combination on the two laser beams projected by the seventh laser LD7 and the eighth laser LD8 to synthesize a fourth laser beam, so that the spot size is unchanged, and the laser energy is doubled.
In the present utility model, the first shaping lens set 331, the second shaping lens set 332, the third shaping lens set 333 and the fourth shaping lens set 334 are each composed of a first plano-convex cylindrical lens, a first plano-concave cylindrical lens, a second plano-concave cylindrical lens and a second plano-convex cylindrical lens in sequence, and shape the laser beam after polarization light combination. The first plano-convex cylindrical lens and the second plano-concave cylindrical lens are matched to shape the polarized and combined laser beam into a beam collimated by a fast axis, specifically, the beam is shaped in the fast axis direction (namely the X direction of the beam), and the wide beam is narrowed into a fine collimated beam; the first plano-concave cylindrical lens and the second plano-convex cylindrical lens are matched to shape the polarized and combined laser beam into a slow-axis collimated beam, specifically, the slow-axis direction (namely, the beam Y direction) is shaped, and the divergent beam is shaped into a collimated beam.
Namely:
the first shaping lens group 331 is configured to shape the first laser beam into light spots with the same divergence angle and the same fast and slow axes;
the second shaping lens group 332 is configured to shape the second laser beam into a light spot with the same divergence angle and the same fast and slow axes;
The third shaping lens group 333 is configured to shape the third laser beam into a light spot with the same divergence angle and the same fast and slow axes;
the fourth shaping lens group 334 is used for shaping the fourth laser beam into light spots with the same divergence angle and the same fast and slow axes.
In the present utility model, the first reflecting mirror 341 is obliquely projected in front of the light emitting side of the first shaping lens group 331, i.e. the first reflecting mirror 341 is obliquely projected in front of the light emitting side of the second plano-convex cylindrical lens in the first shaping lens group 331; the second reflector 342 is obliquely projected in front of the light emitting side of the second shaping lens set 332, that is, the second reflector 342 is obliquely projected in front of the light emitting side of the second plano-convex cylindrical lens in the second shaping lens set 332; the third reflecting mirror 343 is obliquely reflected in front of the light emitting side of the third shaping lens group 333, i.e. the third reflecting mirror 343 is obliquely reflected in front of the light emitting side of the second plano-convex cylindrical lens in the third shaping lens group 333; the fourth reflector 344 is obliquely incident in front of the light emitting side of the fourth shaping lens set 334, i.e. the fourth reflector 344 is obliquely incident in front of the light emitting side of the second plano-convex cylindrical lens in the fourth shaping lens set 334.
Wherein the first reflecting mirror 341 performs the first reflection, horizontally deflects the shaped first laser beam by 90 degrees, reflects the shaped first laser beam to the fifth reflecting mirror 351,
The second mirror 342 performs the first reflection, horizontally deflects the shaped second laser beam by 90 degrees, and reflects the shaped second laser beam to the fifth mirror 351;
the third mirror 343 performs the first reflection, horizontally deflects the shaped third laser beam by 90 degrees, and reflects the shaped third laser beam to the fifth mirror 351;
The fourth mirror 344 performs the first reflection, and deflects the shaped fourth laser beam horizontally by 90 degrees, and reflects it to the fifth mirror 351;
The first mirror 341, the second mirror 342, the third mirror 343 and the fourth mirror 34490 are arranged with a fixed gap to deflect and reflect, so that 4 discrete narrow beams are arranged to be approximately one beam, the second reflection is performed on the fifth mirror 351, the beam is reflected to the sixth mirror 352, the beam is emitted to the lens 4 by the sixth mirror 352, and the laser light emitting position can be adjusted by adjusting the positions of the fifth mirror 351 and the sixth mirror 352. The lens 4 converges the shaped beam collimated laser into a fine light spot, so that the laser energy density reaches the maximum value.
The base 1 is made of aluminum materials, and other materials with high heat conductivity coefficient can be selected to have the functions of heat dissipation and element installation. The laser diode and the optical element are mounted in specified positions. When the laser diode works, a large amount of released heat can be conducted into the base, and the heat dissipation fins 11 are arranged below the base 1 and can timely dissipate the heat.
The foregoing description of the preferred embodiments of the utility model has been presented only in a specific and detailed description, and is not to be construed as limiting the scope of the utility model. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the utility model, and the utility model is intended to encompass such modifications and improvements.
Claims (10)
1. The utility model provides a high-power laser polarization beam combining device, includes casing, its characterized in that: the laser polarization beam combining mechanism comprises a laser source, a first beam combining lens group, a lens shaping mechanism, a second beam combining lens group and a light adjusting lens group;
The laser source comprises a first laser group, a second laser group, a third laser group and a fourth laser group,
The first light combining lens group comprises a first half-wave plate, a first polaroid, a second half-wave plate, a second polaroid, a third half-wave plate, a third polaroid, a fourth half-wave plate and a fourth polaroid;
The lens shaping mechanism comprises a first shaping lens group, a second shaping lens group, a third shaping lens group and a fourth shaping lens group;
the second light combining lens group comprises a first reflecting mirror, a second reflecting mirror, a third reflecting mirror and a fourth reflecting mirror;
The first half wave plate, the first polaroid, the first shaping lens group and the first reflecting mirror are sequentially arranged on the base along the light path propagation direction of the first laser group,
The second half wave plate, the second polaroid, the second shaping lens group and the second reflecting mirror are sequentially arranged on the base along the light path propagation direction of the second laser group;
the third half wave plate, the third polaroid, the third shaping lens group and the third reflecting mirror are sequentially arranged on the base along the light path propagation direction of the third laser group;
The fourth half wave plate, the fourth polarizing plate, the fourth shaping lens group and the fourth reflecting mirror are sequentially arranged on the base along the light path propagation direction of the fourth laser group;
and an integrally formed radiating fin is further arranged below the base.
2. The high power laser polarization beam combining device according to claim 1, wherein:
the first laser group consists of a first laser and a second laser which are vertically arranged,
The second laser group consists of a third laser and a fourth laser which are vertically arranged,
The third laser group consists of a fifth laser and a sixth laser which are vertically arranged,
The fourth laser group consists of a seventh laser and an eighth laser which are vertically arranged,
The first laser, the third laser, the fifth laser and the seventh laser are arranged on the side wall of the base, and the second laser, the fourth laser, the sixth laser and the eighth laser are arranged on the bottom of the base.
3. The high power laser polarization beam combining device according to claim 2, wherein:
The first polaroid and the first laser and the second laser are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the second laser and correspond to the light path propagation direction of the first laser;
The second polaroid and the third laser and the fourth laser are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the fourth laser and correspond to the light path propagation direction of the third laser;
The third polaroid and the fifth laser and the sixth laser are arranged at an oblique angle of 45 degrees at the same time, are arranged in front of the light emitting side of the sixth laser and correspond to the light path propagation direction of the fifth laser;
The fourth polaroid, the seventh laser and the eighth laser are arranged at an oblique angle of 45 degrees at the same time, and are arranged in front of the light emitting side of the eighth laser and correspond to the light path propagation direction of the seventh laser.
4. The high power laser polarization beam combining device according to claim 2, wherein:
The first half-wave plate is arranged directly in front of the second laser,
The second half-wave plate is arranged directly in front of the fourth laser,
The third half-wave plate is arranged directly in front of the sixth laser,
The fourth half-wave plate is disposed directly in front of the eighth laser.
5. The high power laser polarization beam combining device according to claim 1, wherein: the first shaping lens group, the second shaping lens group, the third shaping lens group and the fourth shaping lens group are sequentially composed of a first plano-convex cylindrical lens, a first plano-concave cylindrical lens, a second plano-concave cylindrical lens and a second plano-convex cylindrical lens.
6. The high power laser polarization beam combining device according to claim 1, wherein:
the first reflecting mirror is obliquely projected in front of the light emitting side of the first shaping lens group,
The second reflecting mirror is obliquely shot in front of the light emitting side of the second shaping lens group,
The third reflecting mirror is obliquely shot in front of the light emitting side of the third shaping lens group,
The fourth reflecting mirror is obliquely shot in front of the light emitting side of the fourth shaping lens group.
7. The high power laser polarization beam combining device according to claim 1, wherein: the dimming mirror group comprises a fifth reflecting mirror and a sixth reflecting mirror which are arranged in parallel.
8. The high power laser polarization beam combining device according to claim 1, wherein: the laser device also comprises a lens which is arranged on the shell along the light path propagation direction of the laser source.
9. The high power laser polarization beam combining device according to claim 1, wherein: the base and the cover body are fixed through screws.
10. The high power laser polarization beam combining device according to any one of claims 1 to 9, wherein: the first light combining lens group, the lens shaping mechanism, the second light combining lens group and the dimming lens group are sequentially arranged on the base along the light path propagation direction of the laser source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322709276.4U CN220820380U (en) | 2023-10-09 | 2023-10-09 | High-power laser polarization beam combining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322709276.4U CN220820380U (en) | 2023-10-09 | 2023-10-09 | High-power laser polarization beam combining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220820380U true CN220820380U (en) | 2024-04-19 |
Family
ID=90709472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322709276.4U Active CN220820380U (en) | 2023-10-09 | 2023-10-09 | High-power laser polarization beam combining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220820380U (en) |
-
2023
- 2023-10-09 CN CN202322709276.4U patent/CN220820380U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10530131B2 (en) | Light source system and laser light source | |
| US9455552B1 (en) | Laser diode apparatus utilizing out of plane combination | |
| WO2021129501A1 (en) | Package structure for improving light spot shape | |
| CN116169563A (en) | Laser device combining polarization beam combination and bidirectional shaping | |
| WO2024098826A1 (en) | Optical shaping module and device and lidar system | |
| CN115954761A (en) | Multi-single-tube semiconductor laser beam combining device | |
| CN220820380U (en) | High-power laser polarization beam combining device | |
| CN211786401U (en) | Packaging structure for improving shape of light spot | |
| CN217545225U (en) | Semiconductor laser of multi-chip package | |
| CN112803238A (en) | Optical fiber coupling laser system | |
| CN114976876A (en) | Semiconductor laser of multi-chip package | |
| CN112904581A (en) | Laser module, device, optical space conversion method and medium-intensity light spot forming method | |
| CN221080627U (en) | Laser beam combining device based on bidirectional beam shaping | |
| CN221080626U (en) | Laser device combining polarization beam combination and bidirectional shaping | |
| CN214069084U (en) | High-performance linear laser | |
| CN112103768B (en) | Semiconductor laser | |
| CN115469463A (en) | Two-dimensional laser array's structure of restrainting that closes | |
| CN115173219B (en) | High-brightness semiconductor laser module | |
| CN111029906A (en) | Correcting system of laser, light source system and projection device | |
| CN115693382A (en) | Optical fiber beam combining element for multi-tube-core coupling device and using method thereof | |
| CN112821194A (en) | High-performance linear laser | |
| CN219456487U (en) | Space beam combining device and laser radar transmitting system | |
| CN113206449A (en) | Semiconductor laser based on optics ladder distribution | |
| CN112310800A (en) | Compact optical fiber coupling output semiconductor laser | |
| CN216251614U (en) | Semiconductor laser system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |