CN212380718U - Laser integrated system - Google Patents
Laser integrated system Download PDFInfo
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- CN212380718U CN212380718U CN202020931117.2U CN202020931117U CN212380718U CN 212380718 U CN212380718 U CN 212380718U CN 202020931117 U CN202020931117 U CN 202020931117U CN 212380718 U CN212380718 U CN 212380718U
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Abstract
The application discloses a laser integrated system, wherein a laser module of the laser integrated system comprises a first type laser module and a second type laser module, wherein the light-emitting area of a first type laser tube in the first type laser module is smaller than a preset value, and emergent rays of the first type laser tube can be collimated by a first type collimation unit; the light emitting area of a second type laser tube in the second type laser module is larger than or equal to a preset value, and emergent rays of the second type laser tube can be collimated by using a second type collimation unit, so that the purpose of setting suitable collimation units for laser tubes with different light emitting areas is achieved.
Description
Technical Field
The present application relates to the field of semiconductor technology, and more particularly, to a laser integrated system.
Background
The light source collimation system is an important component of most light source systems and is an important structure for forming a required light beam.
In a light source system using a laser tube as a main light source, suitable collimation systems for laser tubes with different parameters are different, and in order to meet different application requirements, the same light source system generally includes a plurality of laser tubes with different parameters, and how to set suitable collimation systems for the laser tubes with different parameters in the same light source system becomes one of the research directions of those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, the present application provides a laser integrated system, which achieves the purpose of setting suitable collimation units for laser tubes with different light-emitting areas by setting different types of collimation units (a first type of collimation unit and a second type of collimation unit) for a first type of laser tube and a second type of laser tube with different light-emitting areas.
In order to achieve the above purpose, the present application provides the following technical solutions:
a laser integration system, comprising:
the laser system comprises a plurality of laser modules, a plurality of light source modules and a plurality of control modules, wherein each laser module comprises a first laser module and a second laser module, each first laser module comprises a first light source unit, a focusing unit and an optical fiber interface, each second laser module comprises a second light source unit, a focusing unit and an optical fiber interface, each first light source unit comprises a first laser tube and a first collimation unit, and each second light source unit comprises a second laser tube and a second collimation unit; wherein the content of the first and second substances,
the first collimation unit is used for collimating the emergent rays of the first laser tube with the luminous area smaller than a preset value, and the second collimation unit is used for collimating the emergent rays of the second laser tube with the luminous area larger than or equal to the preset value;
the focusing unit is used for converging emergent rays into the optical fiber interface;
the input end of the beam combining module is respectively connected with the optical fiber interfaces of the laser modules through a plurality of first optical fibers; and the output end of the beam combining module is connected with the second optical fiber so as to output the laser light subjected to beam combining processing.
Optionally, the first laser module further includes:
the base is used for fixing the first type laser tube;
the heat sink is used for fixing the first laser tube on the base;
the second type laser module further comprises:
the base is used for fixing the second laser tube;
and the heat sink is used for fixing the second laser tube on the base.
Optionally, the emergent light of the first type laser tube is laser with a preset color;
the emergent light of the second type laser tube is laser with a preset color;
the preset color laser is any one of three primary colors laser or white laser.
Optionally, the heat sink is further configured to transfer heat emitted by the first type of laser tube or the second type of laser tube to the base, so as to keep the working temperature of the first type of laser tube or the second type of laser tube within a preset working range.
Optionally, the first type of collimating unit is an aspheric lens collimating system or a fast-slow axis collimating system;
the second type of collimation unit is a fast-slow axis collimation system.
Optionally, the fast and slow axis collimation system includes: the first collimating element and the second collimating element are oppositely arranged;
the first collimating element is used for collimating the fast axis divergence angle of the emergent ray of the light-emitting unit;
the second collimating element is used for collimating the slow-axis divergence angle of the emergent ray of the light-emitting unit.
Optionally, calibers of the first optical fiber and the second optical fiber are smaller than a preset calibre.
Optionally, the first type laser module further includes a mirror disposed between the first type collimating unit and the focusing unit;
the second type of module further comprises a mirror disposed between the second type of collimating unit and the focusing unit.
According to the technical scheme, the laser module of the laser integrated system comprises a first laser module and a second laser module, wherein the light emitting area of a first laser tube in the first laser module is smaller than a preset value, and the emergent light of the first laser tube can be collimated by a first collimation unit; the light emitting area of a second type laser tube in the second type laser module is larger than or equal to a preset value, and emergent rays of the second type laser tube can be collimated by using a second type collimation unit, so that the purpose of setting suitable collimation units for laser tubes with different light emitting areas is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a laser integrated system according to an embodiment of the present application;
fig. 2 to fig. 4 are schematic structural diagrams of a fast-slow axis collimation system according to an embodiment of the present application.
Detailed Description
As mentioned in the background, in the prior art, it is not possible to provide suitable collimation systems for laser tubes of different parameters in the same light source system.
Specifically, the inventors have found that, for a laser tube with a small light emitting area (for example, the light emitting area is on the order of tens of square microns), the aspheric lens collimation system can generally meet the collimation requirement of the laser tube with a small light emitting area, and for a laser tube with a large light emitting area (for example, the light emitting area is on the order of hundreds of square microns), the aspheric lens collimation system is difficult to collimate (or compress) the light beam to a small enough range to enter the small-aperture optical fiber, which limits the combination of the laser tubes with different light emitting areas in the small-aperture optical fiber, and is very disadvantageous for the application of RGB color light with high brightness in the light source system. Therefore, for a laser tube with a large light-emitting area, a fast-slow axis collimation system is usually adopted to collimate the emitted light, but the structure of the fast-slow axis collimation system is relatively complex, and if the fast-slow axis collimation system is also adopted for a laser tube with a small light-emitting area, the structural complexity and the cost of the light source system are increased. Therefore, it is not suitable to uniformly adopt the fast-axis and slow-axis collimation system in the light source system including multiple types of light emitting units.
In view of this, an embodiment of the present application provides a laser integrated system, including:
the laser system comprises a plurality of laser modules, a plurality of light source modules and a plurality of control modules, wherein each laser module comprises a first laser module and a second laser module, each first laser module comprises a first light source unit, a focusing unit and an optical fiber interface, each second laser module comprises a second light source unit, a focusing unit and an optical fiber interface, each first light source unit comprises a first laser tube and a first collimation unit, and each second light source unit comprises a second laser tube and a second collimation unit; wherein the content of the first and second substances,
the first collimation unit is used for collimating the emergent rays of the first laser tube with the luminous area smaller than a preset value, and the second collimation unit is used for collimating the emergent rays of the second laser tube with the luminous area larger than or equal to the preset value;
the focusing unit is used for converging emergent rays into the optical fiber interface;
the input end of the beam combining module is respectively connected with the optical fiber interfaces of the laser modules through a plurality of first optical fibers; and the output end of the beam combining module is connected with the second optical fiber so as to output the laser light subjected to beam combining processing.
The laser module of the laser integrated system comprises a first laser module and a second laser module, wherein the light-emitting area of a first laser tube in the first laser module is smaller than a preset value, and emergent rays of the first laser tube can be collimated by a first collimation unit; the light emitting area of a second type laser tube in the second type laser module is larger than or equal to a preset value, and emergent rays of the second type laser tube can be collimated by using a second type collimation unit, so that the purpose of setting suitable collimation units for laser tubes with different light emitting areas is achieved.
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An embodiment of the present application provides a laser integrated system, as shown in fig. 1, including:
the laser system comprises a plurality of laser modules, wherein each laser module comprises a first laser module and a second laser module, each first laser module comprises a first light source unit 10, a focusing unit 30 and an optical fiber interface 40, each second laser module comprises a second light source unit 20, a focusing unit 30 and an optical fiber interface 40, each first light source unit 10 comprises a first laser tube 11 and a first collimation unit 12, and each second light source unit 20 comprises a second laser tube 21 and a second collimation unit 22; wherein the content of the first and second substances,
the first collimation unit 12 is used for collimating the emergent light of the first laser tube 11 with the luminous area smaller than a preset value, and the second collimation unit 22 is used for collimating the emergent light of the second laser tube 21 with the luminous area larger than or equal to the preset value;
the focusing unit 30 is used for converging the emergent light rays into the optical fiber interface 40;
the input end of the beam combining module 60 is connected with the optical fiber interfaces 40 of the laser modules through a plurality of first optical fibers 50; the output end of the beam combining module 60 is connected to the second optical fiber 70 to output the laser light after beam combining processing.
In this embodiment, for the semiconductor laser light source, the first laser tube 11 may be a semiconductor laser tube for emitting different color lights, that is, optionally, the emitted light of the first laser tube 11 is a laser with a preset color;
correspondingly, the emergent light of the second laser tube 21 is laser with a preset color;
the preset color laser is any one of three primary colors laser or white laser.
For the light source system, the three primary colors refer to red, green and blue, and accordingly, the three primary color laser light includes red laser light, green laser light and blue laser light.
As described above, a laser tube having a light-emitting area (or chip size) of several tens of square micrometers is generally called a small light-emitting area laser tube, and a semiconductor laser tube having a light-emitting area of several hundreds of square micrometers is generally called a large light-emitting area semiconductor laser tube. Therefore, in the embodiment of the present application, the value of the preset value may be 100 square micrometers. Of course, for different types of laser tubes, the value of the preset value may be changed accordingly, which is not limited in this application.
The first optical fiber 50 is used to connect the optical fiber interface 40 of the laser module with the input end of the beam combining module 60, so that the emergent light of the laser module is transmitted into the beam combining module 60 through the first optical fiber 50. The beam combining module 60 combines the emergent light beams of all the laser modules to form a final small-caliber light beam, and the final small-caliber light beam is output through the second optical fiber 70. That is, optionally, both the first optical fiber 50 and the second optical fiber 70 may be small-caliber optical fibers, that is, calibers of both the first optical fiber 50 and the second optical fiber 70 are smaller than a preset calibre.
On the basis of the above embodiments, in an embodiment of the present application, the first type laser module further includes:
a base for fixing the first type laser tube 11;
the heat sink is used for fixing the first laser tube 11 on the base;
the second type laser module further comprises:
a base for fixing the second type laser tube 21;
and the heat sink is used for fixing the second laser tube 21 on the base.
The heat sink (heat sink) is a structure whose temperature does not change with the amount of heat energy transferred to it, and optionally, the heat sink is further configured to transfer heat emitted from the second type laser tube 21 or the first type laser tube 11 to the base, so as to maintain the working temperature of the second type laser tube 21 or the first type laser tube 11 within a preset working range.
Optionally, the heat sink may be a copper pillar or other structure with better thermal conductivity.
Still referring to fig. 1, the first type laser module further comprises a mirror 80 disposed between the first type collimating unit 12 and the focusing unit 30;
the second type of module further comprises a mirror 80 arranged between the second type of collimating unit 22 and the focusing unit 30.
The speculum 80 is used for will passing through the emergent ray of first type of collimation unit 12 or second type of collimation unit 22 to the focusing unit 30 reflection, the speculum 80 can be adjusted on the one hand the laser module is at the ascending size of the light outgoing direction of laser pipe, and on the other hand can promote the robustness of laser module is in promptly under the condition that some errors appear in the light path of laser pipe, focusing unit 30 and build the in-process, still can be through speculum 80 to the beam shaping processing of emergent ray, obtain the emergent ray that satisfies the requirement to focusing unit 30 outgoing.
On the basis of the above embodiments, in an embodiment of the present application, the first type of collimating unit 12 is an aspheric lens collimating system or a fast-slow axis collimating system;
the second type of collimation unit 22 is a fast-slow axis collimation system.
However, for the light emitting unit with the light emitting area smaller than the preset value, the aspheric lens collimation system is used for collimating the emergent light, so that the structural complexity and the overall cost of the whole system are favorably reduced. That is, optionally, the first collimating unit 12 is an aspheric lens collimating system.
The aspheric lens collimation system can be composed of a single lens or a lens group comprising a plurality of lenses, which is not limited in the application and is determined according to the actual situation.
Referring to fig. 2, fig. 3 and fig. 4, fig. 2 is a schematic structural diagram of the fast and slow axis collimation system, fig. 3 is a schematic diagram of the fast and slow axis collimation system shown in fig. 4 in a first direction, fig. 4 is a schematic diagram of the fast and slow axis collimation system shown in fig. 2 in a second direction, reference numeral 21 in fig. 2 to fig. 4 denotes the second type laser tube, the first direction and the second direction are two directions perpendicular to each other in the same plane, and the fast and slow axis collimation system includes: a first collimating element 221 and a second collimating element 222 disposed opposite to each other;
the first collimating element 221 is configured to collimate a fast-axis divergence angle of an outgoing light ray of the light emitting unit;
the second collimating element 222 is used to collimate the slow-axis divergence of the outgoing light rays of the light emitting unit.
The first collimating element 221 and the second collimating element 222 may be both cylindrical lenses as shown in fig. 1, and correspondingly, the fast-axis and slow-axis collimating system is a cylindrical lens array formed by the first collimating element 221 and the second collimating element 222.
In summary, the embodiment of the present application provides a laser integrated system, where a laser module of the laser integrated system includes a first type laser module and a second type laser module, where a light emitting area of a first type laser tube in the first type laser module is smaller than a preset value, and a first type collimation unit may be used to collimate an emergent light of the first type laser tube; the light emitting area of a second type laser tube in the second type laser module is larger than or equal to a preset value, and emergent rays of the second type laser tube can be collimated by using a second type collimation unit, so that the purpose of setting suitable collimation units for laser tubes with different light emitting areas is achieved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A laser integration system, comprising:
the laser system comprises a plurality of laser modules, a plurality of light source modules and a plurality of control modules, wherein each laser module comprises a first laser module and a second laser module, each first laser module comprises a first light source unit, a focusing unit and an optical fiber interface, each second laser module comprises a second light source unit, a focusing unit and an optical fiber interface, each first light source unit comprises a first laser tube and a first collimation unit, and each second light source unit comprises a second laser tube and a second collimation unit; wherein the content of the first and second substances,
the first collimation unit is used for collimating the emergent rays of the first laser tube with the luminous area smaller than a preset value, and the second collimation unit is used for collimating the emergent rays of the second laser tube with the luminous area larger than or equal to the preset value;
the focusing unit is used for converging emergent rays into the optical fiber interface;
the input end of the beam combining module is respectively connected with the optical fiber interfaces of the laser modules through a plurality of first optical fibers; and the output end of the beam combining module is connected with the second optical fiber so as to output the laser light subjected to beam combining processing.
2. The laser integration system of claim 1, wherein the first laser module further comprises:
the base is used for fixing the first type laser tube;
the heat sink is used for fixing the first laser tube on the base;
the second type laser module further comprises:
the base is used for fixing the second laser tube;
and the heat sink is used for fixing the second laser tube on the base.
3. The laser integrated system as claimed in claim 2, wherein the outgoing light of the first laser tube is laser light of a predetermined color;
the emergent light of the second type laser tube is laser with a preset color;
the preset color laser is any one of three primary colors laser or white laser.
4. The laser integration system as claimed in claim 2, wherein the heat sink is further configured to transfer heat emitted from the first type laser tube or the second type laser tube to the base, so as to maintain the operating temperature of the first type laser tube or the second type laser tube within a preset operating range.
5. The laser integrated system of claim 1, wherein the first collimating unit is an aspheric lens collimating system or a fast-slow axis collimating system;
the second type of collimation unit is a fast-slow axis collimation system.
6. The laser integration system of claim 5, wherein the fast and slow axis alignment system comprises: the first collimating element and the second collimating element are oppositely arranged;
the first collimating element is used for collimating the fast axis divergence angle of the emergent ray of the light-emitting unit;
the second collimating element is used for collimating the slow-axis divergence angle of the emergent ray of the light-emitting unit.
7. The laser integration system of claim 1, wherein the first and second optical fibers have a smaller gauge than a predetermined gauge.
8. The laser integration system of claim 1, wherein the first laser module further comprises a mirror disposed between the first collimating unit and the focusing unit;
the second type of module further comprises a mirror disposed between the second type of collimating unit and the focusing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020931117.2U CN212380718U (en) | 2020-05-27 | 2020-05-27 | Laser integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020931117.2U CN212380718U (en) | 2020-05-27 | 2020-05-27 | Laser integrated system |
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| CN212380718U true CN212380718U (en) | 2021-01-19 |
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| CN202020931117.2U Active CN212380718U (en) | 2020-05-27 | 2020-05-27 | Laser integrated system |
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