CN117954946B - Laser output head and laser output device - Google Patents
Laser output head and laser output device Download PDFInfo
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- CN117954946B CN117954946B CN202410346633.1A CN202410346633A CN117954946B CN 117954946 B CN117954946 B CN 117954946B CN 202410346633 A CN202410346633 A CN 202410346633A CN 117954946 B CN117954946 B CN 117954946B
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Abstract
The application discloses a laser output head and a laser output device, wherein the laser output head comprises: the laser output head comprises a main body, a crystal end cap, a transmission optical fiber, an inner tube assembly and a reflecting mirror assembly for reflecting return light inside the laser output head; the inner tube assembly comprises a first inner tube and a second inner tube, the first inner tube and the second inner tube are respectively arranged at two ends of the main body, and the crystal end caps are embedded into the end parts of the first inner tube; the reflector assembly comprises a first reflector and a second reflector, wherein the first reflector and the second reflector are positioned in the accommodating cavity of the main body, and the first reflector and the second reflector are sleeved on the transmission optical fiber at intervals. The application adopts the sectional assembled inner tube design, avoids the heat deposition in the output head, does not need to additionally add a heat radiating device, reduces the volume of the output head and can realize good heat radiating effect; meanwhile, stray return light entering the output head is effectively processed through the cooperation between the crystal end cap and the reflecting mirror component, and the laser output quality is improved.
Description
Technical Field
The application relates to the technical field of laser processing, in particular to a laser output head and a laser output device.
Background
Along with economic development and social progress, the high-power fiber laser is increasingly widely applied to precision machining, laser cutting, laser welding, 3D printing and the like, wherein a laser output head plays an important role as a core component of the high-power fiber laser. In the process of laser processing metal, a large amount of stray reflected light returns to the laser output head, so that the laser output head is required to have the capability of resisting high-power return light, and the quantity of return light heat absorbed by internal components of the laser output head is required to be effectively managed so as to prevent the phenomenon that the laser output head is damaged due to heat accumulation.
Disclosure of Invention
The inventor of the present application found in the research that, in order to solve the above-mentioned problems in the prior art, it is necessary to add a cladding light stripper on the energy-transmitting optical fiber to reduce the return light propagating along the cladding, and at the same time add an additional heat dissipating device in the laser output head; however, the cladding light stripper is easy to cause damage to the energy-transmitting optical fiber, so that the service life of the laser output head is short, and the applicable scene is limited; the laser output head additionally provided with the heat dissipation device has the problems of large volume, complex structure, high assembly difficulty and the like, thereby further limiting the use environment of the laser output head.
Based on the above, the application provides the laser output head and the laser output device, so as to achieve the technical effects of effectively processing stray return light entering the interior of the output head, improving the laser output quality, avoiding heat deposition in the interior of the output head and reducing the volume of the output head.
According to a first aspect of the present application, there is provided a laser output head comprising: the crystal end cap is connected with the transmission optical fiber,
The laser output head further includes: an inner tube assembly and a reflector assembly for reflecting return light inside the laser output head;
The inner tube assembly comprises a first inner tube and a second inner tube, the first inner tube and the second inner tube are respectively arranged at two ends of the main body, and the crystal end caps are embedded into the end parts of the first inner tube;
The reflector assembly comprises a first reflector and a second reflector, wherein the first reflector and the second reflector are positioned in the accommodating cavity of the main body, and the transmission optical fiber is sleeved with the reflector at intervals.
Optionally, the first end of the first inner tube is exposed out of the main body, the second end of the first inner tube is fixedly connected with the front end of the accommodating cavity of the main body, and the second end of the first inner tube is sleeved outside one end of the transmission optical fiber;
the second inner tube is fixedly connected with the rear end of the accommodating cavity of the main body, and the second inner tube is sleeved outside the other end of the transmission optical fiber.
Optionally, the method comprises: the fixing sleeve is arranged on the inner side of the sleeve,
The fixing sleeve is arranged in the accommodating cavity of the main body and is fixedly connected with the accommodating cavity,
One end of the fixed sleeve is abutted with the first reflecting mirror, so that the first reflecting mirror is abutted against the second end of the first inner tube, and the second reflecting mirror is accommodated in the fixed sleeve.
Optionally, the method comprises: the sleeve is provided with a plurality of grooves,
The sleeve is sleeved outside the transmission optical fiber, one end of the sleeve can extend into the fixing sleeve and is abutted to the second reflecting mirror, and the other end of the sleeve is accommodated in the second inner tube.
Optionally, the method comprises: an inner pipe connecting piece is arranged on the inner pipe,
One end of the inner tube connecting piece is sleeved outside the second inner tube and is fixedly connected with the second inner tube, and the other end of the inner tube connecting piece is sleeved outside the other end of the transmission optical fiber.
Optionally, the first end of the first inner tube is provided with a plurality of light through holes along the axial direction, and the light through holes are used for realizing the scattering of non-forward return light in the crystal end cap;
the first inner tube is fixed with the crystal end cap through a high-temperature-resistant adhesive layer, and a heat conduction metal layer is electroplated on the inner wall of the first inner tube, which is in contact with the crystal end cap.
Optionally, the crystal end cap comprises a quartz crystal, a fusion splice extending along the quartz crystal to one side of the transmission fiber,
The crystal end cap is welded with one end of the transmission optical fiber through the welding part, and a coating layer is arranged on the end face of one end of the quartz crystal where the welding part is located.
Optionally, the method comprises: an external clamping piece, a thermal switch and an electrode ring for realizing high-temperature protection,
The external clamping piece is arranged outside the main body;
the thermal switch is arranged in the groove at the outer side of the main body, and the electrode ring is sleeved outside the thermal switch.
Optionally, the first inner tube, the second inner tube, the fixing sleeve and the main body are all connected through threads;
The first inner tube, the second inner tube, the fixing sleeve and the threaded connection part between the main body are coated with high-temperature-resistant adhesive layers.
According to a second aspect of the present application, there is provided a laser output device comprising: the laser output head of any of the first aspects above.
The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:
The utility model provides a laser output head and laser output device, the laser output head includes: the inner tube assembly and the reflecting mirror assembly are used for reflecting returned light inside the laser output head; on the one hand, by adopting the sectional assembled inner tube design, the first inner tube and the second inner tube are respectively arranged at the two ends of the main body, so that the heat deposition in the output head can be avoided, a heat dissipation device is not required to be additionally arranged in the output head, the volume of the output head is reduced, and a good heat dissipation effect can be realized; on the other hand, through the cooperation between crystal end cap and the speculum subassembly, the spurious return light that gets into the output head inside has been handled effectively, and then the quality of laser output has been improved.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic cross-sectional view of a laser output head in one embodiment of the application;
FIG. 2 is a schematic diagram showing the overall structure of a laser output head according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a partial structure of a laser output head according to an embodiment of the present application;
FIG. 4 is a second schematic diagram of a partial structure of a laser output head according to an embodiment of the present application;
FIG. 5 is a third schematic view of a partial structure of a laser output head according to an embodiment of the present application;
In the figure: 1. a main body; 2. a crystal end cap; 3. a transmission optical fiber; 4. a first inner tube; 5. a second inner tube; 6. a first mirror; 7. a second mirror; 8. a fixed sleeve; 9. a sleeve; 10. an inner tube connecting member; 11. an external clamping piece; 12. a thermal switch; 13. an electrode ring; 14. an annular rubber ring.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
The application adopts the sectional assembled inner tube design, and respectively arranges two inner tubes at two ends of the main body, thereby realizing heat isolation between the front inner tube and the rear inner tube and avoiding heat deposition in the output head; the method comprises the steps of coating a film on the end face of a crystal end cap, and processing returned light entering the output head by utilizing the reflection effect of a primary mirror and a secondary mirror on the returned light; meanwhile, the laser output head provided by the application can be matched and connected with an external laser output device, and the cooling device in the output device is used for radiating heat, so that the volume of the laser output head is further reduced, the laser output head is more convenient to carry, and the laser output head can be widely applied to different use scenes.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
Referring to fig. 1 to 5, in one embodiment of the present application, there is provided a laser output head including: a main body 1, a crystal end cap 2 and a transmission optical fiber 3; the main body 1 is internally provided with a containing cavity along the axial direction, the transmission optical fiber 3 is arranged in the containing cavity, the crystal end cap 2 is connected with one end of the transmission optical fiber 3, and the other end of the transmission optical fiber 3 penetrates through the main body 1 and extends out of the main body 1; the laser output head further includes: an inner tube assembly and a reflector assembly for reflecting return light inside the laser output head;
The inner tube assembly comprises a first inner tube 4 and a second inner tube 5, the first inner tube 4 and the second inner tube 5 are respectively arranged at two ends of the main body 1, and the crystal end caps 2 are embedded into the end parts of the first inner tube 4; the mirror assembly comprises a first mirror 6 and a second mirror 7, wherein the first mirror 6 and the second mirror 7 are positioned in the accommodating cavity of the main body 1, and are sleeved on the transmission optical fiber 3 at intervals.
In the present embodiment, the left side in fig. 1 is taken as the front end of the laser output head, and the right side in fig. 1 is taken as the rear end of the laser output head; the laser beam in the laser output head is transmitted from the right side to the left side, and beam expansion can be achieved in the crystal end cap 2.
In some embodiments, the main body 1 is preferably made of steel material, and the connection devices such as the reflecting mirror and the sleeve between the first inner tube 4 and the second inner tube 5 can be made of poor heat conductor materials, for example, quartz glass, ultra-white glass and the like; the design of combining the sectional inner tube assembly and the poor heat conduction device is adopted in the embodiment, so that heat isolation between the front inner tube and the rear inner tube is more facilitated, and heat deposition inside the output head is avoided.
As can be seen from fig. 2 and 5, in this embodiment, the first mirror 6 is a primary mirror, the second mirror 7 is a secondary mirror, and mounting holes for passing the optical fibers are provided at the center positions of the first mirror 6 and the second mirror 7, the diameter of the mounting holes is the same as or slightly larger than the diameter of the transmission optical fiber 3, and the size of the first mirror 6 is not smaller than the size of the second mirror 7.
The first reflecting mirror 6 and the second reflecting mirror 7 are used for further filtering the return light which is not intercepted by the crystal end cap 2, so that the stray return light entering the output head can be reflected through the cooperation between the crystal end cap and the reflecting mirror assembly, and the laser output quality is improved.
In at least one embodiment of the present application, a first end of the first inner tube 4 is exposed outside the main body 1, a second end of the first inner tube 4 is fixedly connected with a front end of the accommodating cavity of the main body 1, and a second end of the first inner tube 4 is sleeved outside one end of the transmission optical fiber 3; the second inner tube 4 is fixedly connected with the rear end of the accommodating cavity of the main body 1, and the second inner tube 5 is sleeved outside the other end of the transmission optical fiber 3. For example, in some preferred embodiments, the first inner tube 4 and the body 1, and the second inner tube 5 and the body 1 may be mounted by means including, but not limited to, threaded connections, and the like.
In at least one embodiment of the present application, with continued reference to FIG. 1, a laser output head includes: the fixed cover 8, fixed cover 8 sets up in the holding intracavity of main part 1, and with holding chamber fixed connection, the one end and the first speculum 6 butt of fixed cover 8 to make first speculum 6 paste the second end of leaning on first inner tube 4, and the inside at fixed cover 8 is held to the second speculum 7.
In some preferred embodiments, the fixing sleeve 8 and the main body 1 may be connected by a threaded manner, and the fixing sleeve 8 preferably has a steel material structure and is used for positioning and supporting the first inner tube 4 and the mirror assembly, and of course, the fixing sleeve 8 may also be made of other materials with poor thermal conductivity so as to isolate heat between the inner tube assemblies.
In at least one embodiment of the present application, a laser output head includes: the sleeve 9, sleeve 9 cover is established in the outside of transmission optic fibre 3, and sleeve 9's one end stretches into the inside of fixed cover 8 and with second speculum 7 butt, sleeve 9's the other end part holding is in the inside of second inner tube 5, and sleeve 9's the other end can stretch out second inner tube 5 and with the inboard butt of inner tube connecting piece 10.
In some preferred embodiments, the sleeve 9 is a glass sleeve and is used to achieve a positioning support between the second inner tube 5 and the mirror assembly and the first inner tube 4; thermal isolation between the components may also be achieved.
In at least one embodiment of the present application, a laser output head includes: the inner pipe connecting piece 10, the inner pipe connecting piece 10 is used for realizing the positioning and fixing of the second inner pipe 5; one end of the inner tube connecting piece 10 is sleeved outside the second inner tube 5 and fixedly connected with the second inner tube 5, and the other end of the inner tube connecting piece 10 is sleeved outside the other end of the transmission optical fiber 3. In some preferred embodiments, the inner tube connector 10 is secured to the optical fiber sleeved inside thereof by a high temperature glue to prevent breakage of the inner optical fiber due to stress during use.
In at least one embodiment of the present application, the first end of the first inner tube 4 is provided with a plurality of light-passing holes along the axial direction, and the light-passing holes are used for realizing the scattering of non-forward return light in the crystal end cap; the first inner tube 4 and the crystal end cap 2 are fixed through a high temperature resistant glue joint layer, and a heat conduction metal layer is electroplated on the inner wall of the first inner tube 4, which is contacted with the crystal end cap 2.
In some preferred embodiments, the first inner tube 4 is constructed of a material having a high thermal conductivity, thereby allowing heat exchange between the first inner tube 4 and the crystal end cap 2, avoiding device damage due to heat deposition.
In at least one embodiment of the present application, the crystal end cap 2 includes a quartz crystal and a fusion-spliced portion extending along the quartz crystal toward the transmission optical fiber 3, the crystal end cap 2 is fused to one end of the transmission optical fiber 3 through the fusion-spliced portion, and a coating layer is provided on an end face of the quartz crystal where the fusion-spliced portion is located.
For example, the end face of the quartz crystal, on which the coating layer is arranged, can be a plane, which is more beneficial to reflecting return light.
In some preferred embodiments, the coating is a low absorption high reflection film, which is not only beneficial to reflecting return light, but also can reduce absorption of emergent light by the coating, so that the laser beam is expanded in the quartz crystal, thereby reducing the power density of the output end face and improving the quality of laser output. Of course, the material of the crystal end cap 2 is not limited in the present application.
In the embodiment of the application, the film coating layer on the end surface of one side of the quartz crystal can reflect the back reflection, and meanwhile, the light through holes arranged on the first inner tube 4 can scatter the back reflection in the quartz crystal to the outside, so that the back reflection in the laser output head is greatly reduced, and the laser quality is improved.
In at least one embodiment of the present application, as shown in fig. 3 and 4, the laser output head includes: the external clamping piece 11, the thermal switch 12 and the electrode ring 13 for realizing high-temperature protection, wherein the external clamping piece 11 is arranged outside the main body 1; the thermal switch 12 is mounted in a recess on the outside of the main body 1, and the electrode ring 13 is sleeved outside the thermal switch 12.
For example, the external clamping piece 11 is connected with the main body 1 through threads, a sliding groove is formed in the outer surface of the external clamping piece 11, the external clamping piece 11 can be matched with a port of the laser output device, and the external clamping piece 11 is fastened with the laser output device through the sliding groove.
In the embodiment of the application, the thermal switch 12 is communicated with the electrode ring 13 through a wire, the thermal switch 12 can control the laser switch by detecting the temperature condition of the surface of the main body 1, and the electrode ring 13 is used for judging the conduction of a laser head circuit; when the output head operates, if the temperature of the laser output head exceeds the upper temperature limit, the power is automatically cut off, so that the high-temperature protection of the laser output head is realized, and the laser output head is prevented from being damaged.
In some preferred embodiments, the annular rubber ring 14 is installed in the groove formed at the rear end of the main body 1, so that the output head can be tightly attached to and not easily loosened when being inserted into different laser output devices, and foreign matters are prevented from entering the device.
In at least one embodiment of the present application, the first inner tube 4, the second inner tube 5, the fixing sleeve 8 and the main body 1 are all connected through threads; the threaded connection parts between the first inner tube 4, the second inner tube 5 and the fixing sleeve 8 and the main body 1 are coated with high-temperature-resistant adhesive layers, so that the internal devices can be prevented from loosening in the use process of the output head.
At least one embodiment of the present application provides a laser output head, the assembly process of which includes:
Firstly, fixing the fixing sleeve 8 and the main body 1 through threads, coating high-temperature-resistant glue at the threads of the fixing sleeve 8 for reinforcement, and then installing a first reflecting mirror 6 at the front side of the fixing sleeve 8;
Secondly, the first inner tube 4 is screwed to the front side of the first reflecting mirror 6, and the second inner tube 5 is screwed to the main body 1;
thirdly, placing the second reflecting mirror 7 and the sleeve 9 into the main body 1 along the mounting hole at the rear side of the second inner tube 5 until the second reflecting mirror 7 is completely contacted with the fixing sleeve 8;
Fourthly, high temperature resistant glue is smeared at the screw thread on the rear side of the second inner pipe 5, so that the inner pipe connecting piece 10 and the second inner pipe 5 are fixed through the screw thread and the high temperature resistant glue, and the sleeve 9 can extend to the rear end of the second inner pipe 5; then the inner pipe connecting piece 10 is fixed with the second inner pipe 5 through threads and rotated until the inner pipe connecting piece 10 is completely attached to the sleeve 9;
Fifthly, the transmission optical fiber 3 sequentially passes through the sleeve 9, the second reflector 7 and the installation hole at the central position of the first reflector 6 along the installation hole at the rear side of the inner tube connecting piece 10, and the transmission optical fiber 3 passes out of the first inner tube 4 and then is welded with the crystal end cap 2;
sixthly, after welding, the transmission optical fiber 3 is pulled back along the inner pipe connecting piece 10, after the crystal end cap 2 is leveled with the front end surface of the first inner pipe 4, the connection between the crystal end cap 2 and the first inner pipe 4 is realized through high temperature resistant glue on one side of the crystal end cap 2, and then the optical fiber passing through the inner pipe connecting piece 10 is fixed with the inner pipe connecting piece 10 through the high temperature resistant glue;
seventh, installing the thermal switch 12 at the groove on the outer side of the main body 1 and fixing the thermal switch by dispensing, then installing the electrode ring 13 on the outer side of the thermal switch 12, and simultaneously communicating the thermal switch 12 with the electrode ring 13 through a wire;
Finally, an annular rubber ring 14 is mounted in a recess in the rear side of the body.
As can be seen from the above, the laser output head provided by the application has simple assembly process, is convenient to maintain, and can be shown with reference to fig. 2.
In another embodiment of the present application, there is provided a laser output device including: the laser output head as set forth in any one of the above embodiments.
In this embodiment, the laser output head is adapted to a connection port of a laser output device, including but not limited to a handheld welding gun, a laser cutting head, a laser printer, etc.; meanwhile, the laser output head can dissipate heat by means of a cooling device in the laser output device, so that the volume of the laser output head is further reduced, and the laser output head is applied to the laser output device, so that the laser output head is more convenient to carry and can be widely applied to different use scenes.
In summary, the technical scheme of the application at least achieves the following technical effects: the utility model provides a laser output head and laser output device, the laser output head includes: an inner tube assembly and a reflector assembly for reflecting return light inside the laser output head; on the one hand, by adopting the sectional assembled inner tube design, the first inner tube and the second inner tube are respectively arranged at the two ends of the main body, so that the heat deposition in the output head can be avoided, a heat dissipation device is not required to be additionally arranged in the output head, the volume of the output head is reduced, and a good heat dissipation effect can be realized; on the other hand, through the cooperation between crystal end cap and the speculum subassembly, the spurious return light that gets into the output head inside has been handled effectively, and then the quality of laser output has been improved.
It is to be understood that the terms "upper," "lower," "front," "rear," "inner," "outer," and the like indicate or relate to an orientation or position based on that shown in the drawings, and are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the present application, unless explicitly specified and limited otherwise, terms such as "connected," "fixed" and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present application, unless otherwise indicated, the meaning of "plurality" is two or more. It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "examples," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (8)
1. A laser output head comprising: the crystal end cap is connected with the transmission optical fiber and is characterized in that the crystal end cap is axially provided with a containing cavity in the main body,
The laser output head further includes: an inner tube assembly and a reflector assembly for reflecting return light inside the laser output head;
The inner tube assembly comprises a first inner tube and a second inner tube, the first inner tube and the second inner tube are respectively arranged at two ends of the main body, and the crystal end caps are embedded into the end parts of the first inner tube;
the reflecting mirror assembly comprises a first reflecting mirror and a second reflecting mirror, wherein the first reflecting mirror and the second reflecting mirror are positioned in the accommodating cavity of the main body, and are sleeved on the transmission optical fiber at intervals;
The laser output head further includes: the sleeve and the sleeve are fixed, the sleeve is fixed,
The fixing sleeve is arranged in the accommodating cavity of the main body and is fixedly connected with the accommodating cavity,
One end of the fixed sleeve is abutted with the first reflecting mirror, so that the first reflecting mirror is abutted against the second end of the first inner tube, and the second reflecting mirror is accommodated in the fixed sleeve;
the sleeve is sleeved outside the transmission optical fiber, one end of the sleeve can extend into the fixing sleeve and is abutted to the second reflecting mirror, and the other end of the sleeve is accommodated in the second inner tube.
2. The laser output head of claim 1, wherein,
The first end of the first inner tube is exposed out of the main body, the second end of the first inner tube is fixedly connected with the front end of the accommodating cavity of the main body, and the second end of the first inner tube is sleeved outside one end of the transmission optical fiber;
the second inner tube is fixedly connected with the rear end of the accommodating cavity of the main body, and the second inner tube is sleeved outside the other end of the transmission optical fiber.
3. The laser output head of claim 2, comprising: an inner pipe connecting piece is arranged on the inner pipe,
One end of the inner tube connecting piece is sleeved outside the second inner tube and is fixedly connected with the second inner tube, and the other end of the inner tube connecting piece is sleeved outside the other end of the transmission optical fiber.
4. The laser output head of claim 1, wherein,
A plurality of light passing holes are formed in the first end of the first inner tube along the axial direction, and the light passing holes are used for realizing the scattering of non-forward return light in the crystal end cap;
the first inner tube is fixed with the crystal end cap through a high-temperature-resistant adhesive layer, and a heat conduction metal layer is electroplated on the inner wall of the first inner tube, which is in contact with the crystal end cap.
5. The laser output head of claim 1 wherein the crystal end cap comprises a quartz crystal, a fusion splice extending along the quartz crystal to one side of the transmission fiber,
The crystal end cap is welded with one end of the transmission optical fiber through the welding part, and a coating layer is arranged on the end face of one end of the quartz crystal where the welding part is located.
6. The laser output head of claim 1, comprising: an external clamping piece, a thermal switch and an electrode ring for realizing high-temperature protection,
The external clamping piece is arranged outside the main body;
the thermal switch is arranged in the groove at the outer side of the main body, and the electrode ring is sleeved outside the thermal switch.
7. The laser output head according to claim 3, wherein the first inner tube, the second inner tube, the fixing sleeve and the main body are all connected through threads;
The first inner tube, the second inner tube, the fixing sleeve and the threaded connection part between the main body are coated with high-temperature-resistant adhesive layers.
8. A laser output device, comprising: the laser output head of any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410346633.1A CN117954946B (en) | 2024-03-26 | 2024-03-26 | Laser output head and laser output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410346633.1A CN117954946B (en) | 2024-03-26 | 2024-03-26 | Laser output head and laser output device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994918A (en) * | 2018-01-02 | 2019-07-09 | 深圳市创鑫激光股份有限公司 | Laser export head and laser with the laser export head |
| CN110323658A (en) * | 2018-03-31 | 2019-10-11 | 深圳市创鑫激光股份有限公司 | Laser export head and laser |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2364640B2 (en) * | 1973-01-02 | 1977-01-27 | Coherent Radiation, Palo Alto, Calif. (V.StA.) | GAS LASER |
| IT1205762B (en) * | 1987-03-20 | 1989-03-31 | Enea | CAVITY FOR LASER FIR (FAR INFRARED RADIATION) OPTICALLY PUMPED WITH BEARING TUBE |
| US7492987B2 (en) * | 2005-12-19 | 2009-02-17 | Trimedyne, Inc. | Fiber optic laser energy delivery devices |
| CN112652937B (en) * | 2020-12-23 | 2021-08-27 | 上海飞博激光科技有限公司 | Laser device with anti-return light |
| CN113067236A (en) * | 2021-02-24 | 2021-07-02 | 武汉锐科光纤激光技术股份有限公司 | Laser output head |
| CN113172336A (en) * | 2021-05-11 | 2021-07-27 | 江苏凯普林光电科技有限公司 | Laser output head with controllable output light spot |
| CN115986534A (en) * | 2021-10-14 | 2023-04-18 | 深圳市杰普特光电股份有限公司 | Power amplifier and high-peak pulse fiber laser |
| CN116742448B (en) * | 2023-08-14 | 2023-11-21 | 四川中久大光科技有限公司 | Gao Huifan-resistant laser output head and laser |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994918A (en) * | 2018-01-02 | 2019-07-09 | 深圳市创鑫激光股份有限公司 | Laser export head and laser with the laser export head |
| CN110323658A (en) * | 2018-03-31 | 2019-10-11 | 深圳市创鑫激光股份有限公司 | Laser export head and laser |
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