CN110927900A - Water-cooled laser coupler - Google Patents
Water-cooled laser coupler Download PDFInfo
- Publication number
- CN110927900A CN110927900A CN201911390531.5A CN201911390531A CN110927900A CN 110927900 A CN110927900 A CN 110927900A CN 201911390531 A CN201911390531 A CN 201911390531A CN 110927900 A CN110927900 A CN 110927900A
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- China
- Prior art keywords
- water
- coupler
- cooled
- coupling lens
- lens group
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- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4266—Thermal aspects, temperature control or temperature monitoring
- G02B6/4268—Cooling
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4244—Mounting of the optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a water-cooled laser coupler, which comprises: the water-cooling coupling lens group mounting cylinder is fixed on the rear base of the coupler through a differential adjusting screw, and the transverse position of the water-cooling coupling lens group mounting cylinder is adjusted by rotating the differential adjusting screw; the front base is fixedly connected with the rear base of the coupler; the water-cooling coupling lens group installation cylinder is further connected with the rear base and the inner cylinder through a longitudinal screw, and the longitudinal position of the water-cooling coupling lens group installation cylinder is adjusted by rotating the longitudinal screw. The water-cooled laser coupler disclosed by the invention is applied to a high-power optical fiber coupling output laser, and solves the problem that the laser coupler cannot work normally due to heat accumulation.
Description
Technical Field
The invention relates to the technical field of solid laser, in particular to a water-cooling laser coupler.
Background
The optical fiber coupling output solid laser including semiconductor laser has wide application in industry, medical treatment, military and other fields. Compared with a direct output laser, the optical fiber coupling output laser transmits energy through a flexible integrated optical fiber, and is easier to operate and apply. The key device in the optical fiber coupling technology is a laser coupler, and laser transmitted in space is coupled in an optical fiber through the laser coupler and transmitted. While laser coupler products on the market employ a natural cooling structure. When high-power (3000W and above) continuous output laser is applied, the situation that the laser coupler is overheated to cause that the laser cannot emit light normally and even the input end of the optical fiber is damaged can occur. Therefore, a stable and reliable laser coupler is required for the fiber-coupled output laser.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a water-cooling laser coupler to solve the problem of faults and other technical problems caused by heat accumulation when the laser coupler operates at high power.
(II) technical scheme
The invention provides a water-cooled laser coupler, comprising:
the water-cooling coupling lens group mounting cylinder is fixed on the rear base of the coupler through a differential adjusting screw, and the transverse position of the water-cooling coupling lens group mounting cylinder is adjusted by rotating the differential adjusting screw; and
and the front base is fixedly connected with the rear base of the coupler.
In some embodiments, the water-cooled coupling lens group mounting cylinder includes:
an outer cylinder having a water passage connected to a water cooler; and
the inner cylinder is matched and combined with the outer cylinder in a sliding way.
In some embodiments, the water-cooled coupling lens group mounting cylinder is further connected with the rear base and the inner cylinder through a longitudinal screw, and the longitudinal screw is rotated to adjust the longitudinal position of the water-cooled coupling lens group mounting cylinder.
In some embodiments, the inner barrel has a threaded bore to which a longitudinal screw is mounted by a dowel pin.
In some embodiments, the outer barrel has a U-shaped aperture therein, and the inner and outer barrels slide along the extent of the U-shaped aperture.
In some embodiments, the water-cooled coupling lens group mounting cylinder is fixed to the rear base of the coupler by a differential adjusting screw and a spring fixing screw, and the differential adjusting screw is rotated to adjust the transverse position of the water-cooled coupling lens group mounting cylinder.
In some embodiments, the inner barrel has a step structure therein, and the coupling lens set is mounted thereon and fixed by a threaded press ring.
In some embodiments, the coupler front base has a circular hole to allow laser input.
In some embodiments, the coupler rear base has a circular hole to enable laser output.
In some embodiments, the coupler rear mount interfaces with an industry transmission fiber optic standard interface.
(III) advantageous effects
The water-cooling laser coupler provided by the invention has the following beneficial effects:
(1) the coupler adopts a water cooling structure, so that the problem that the coupler cannot normally work due to heat accumulation when the coupler works at high power (3000W or more) is solved; especially, the high-power optical fiber coupling output semiconductor laser must adopt a water-cooled laser coupler due to the characteristic of serious stray light;
(2) the invention can solve the problem of heat influence of the coupler, and simultaneously can ensure that the coupling lens group is adjustable in the transverse direction and the longitudinal direction, thereby ensuring the usability of the coupler;
(3) the water-cooled laser coupler has the advantages of simple structure, reliability and low cost.
Drawings
FIG. 1 is a perspective view of a water-cooled laser coupler according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a water-cooled laser coupler structure according to an embodiment of the present invention;
FIG. 3 is a perspective view of an installation tube of a water-cooled coupling lens set of a water-cooled laser coupler according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of an installation tube of a water-cooled coupling lens set of a water-cooled laser coupler according to an embodiment of the invention.
In the figure:
differential adjusting screw 2 of water-cooling coupling lens group mounting cylinder 1
Longitudinal screw 4 of fixing screw 3 and front base 5
Threaded press ring 14 circular hole A, B of coupling lens group 13
Mounting threaded hole G for positioning pin D at water inlet C and water outlet C
U-shaped hole H
Detailed Description
In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments.
A first embodiment of the present invention provides a water-cooled laser coupler, specifically, including:
a water-cooled coupling lens group installation section of thick bamboo, it further includes: an outer cylinder having a water passage connected to a water cooler; and the inner cylinder is matched and combined with the outer cylinder in a sliding way.
The embodiment realizes the cooling function through the external water cooler, and solves the heat dissipation problem of the laser coupler during high-power work.
Based on the water-cooled laser coupler, the second embodiment of the present invention provides a differential adjusting screw, which specifically includes:
the water-cooling coupling lens group mounting cylinder is fixed on a rear base of the coupler through a differential adjusting screw, and the transverse position of the water-cooling coupling lens group mounting cylinder is adjusted by rotating the differential adjusting screw; or
The water-cooling coupling lens group installation cylinder is fixed on a rear base of the coupler through a differential adjusting screw and a spring fixing screw, and the differential adjusting screw is rotated to adjust the transverse position of the water-cooling coupling lens group installation cylinder.
It should be noted that, the fixing manner of the water-cooling coupling lens group mounting cylinder may be realized by all the differential adjusting screws, or by combining the differential adjusting screws and the spring fixing screws. And in a specific fixation, preferably, the number of screws is three. Further, the fixation can be realized by three differential adjusting screws, or by two differential adjusting screws and one spring fixing screw. In order to ensure the feasibility of lateral adjustment, in some embodiments, one spring set screw is used, and the number of differential adjustment screws is not limited.
In this embodiment, the design of adding differential adjusting screw makes coupling lens group installation section of thick bamboo can realize horizontal regulation, conveniently still keeps the best effect of coupling lens group under more complicated circumstances.
Based on the above embodiment, the third embodiment of the present invention adds a longitudinal screw to the second embodiment, and specifically, it is represented as:
the water-cooling coupling lens group installation cylinder is connected with the rear base and the inner cylinder through a longitudinal screw, and the longitudinal position of the water-cooling coupling lens group installation cylinder is adjusted by rotating the longitudinal screw.
In this embodiment, the design of increasing vertical screw makes coupling lens group installation section of thick bamboo can realize vertical regulation, combines the horizontal regulation effect of differential adjusting screw, and this embodiment has further kept the best realization effect of coupling lens group under more complicated circumstances.
Based on the first to third embodiments, the water-cooled laser coupler further includes:
the front base of the coupler is fixedly connected with the rear base of the coupler.
And, wherein:
in some embodiments, the inner barrel has a threaded bore to which the longitudinal screw is mounted by a dowel pin;
in some embodiments, the outer cylinder has a U-shaped hole, and the inner cylinder and the outer cylinder slide along the U-shaped hole;
in some embodiments, the inner barrel has a step structure, and a coupling lens set is mounted and fixed by a threaded compression ring;
in some embodiments, a circular hole is formed in the front base of the coupler to realize the input of laser;
in some embodiments, a circular hole is formed in the rear base of the coupler to output laser light;
in some embodiments, the coupler rear mount interfaces with an industry transmission fiber optic standard interface.
In summary, a fourth embodiment of the present invention provides a water-cooled laser coupler. Fig. 1 is a perspective view of the water-cooled laser coupler of the present embodiment, fig. 2 is a schematic cross-sectional view of the structure of the water-cooled laser coupler of the present embodiment, fig. 3 is a perspective view of an installation tube of a water-cooled coupling lens set of the water-cooled laser coupler of the present embodiment, and fig. 4 is a schematic cross-sectional view of the installation tube of the water-cooled coupling lens set of the water-cooled laser coupler of the present embodiment. As shown in fig. 1 and 2, the water-cooled laser coupler includes: the water-cooled coupling lens group comprises a water-cooled coupling lens group mounting cylinder 1, two differential adjusting screws 2, a spring fixing screw 3, a longitudinal screw 4, a coupler front base 5 and a coupler rear base 6. As shown in fig. 3 and 4, the water-cooled coupling lens group mounting barrel 1 further includes: the device comprises a water-cooled outer cylinder 11, an inner cylinder 12, a coupling lens group 13 and a threaded pressure ring 14.
In this embodiment, the water-cooling coupling lens group mounting cylinder 1 is supported and fixed by the two differential adjusting screws 2 and the spring fixing screw 3 at three points, and the differential adjusting screws 2 are rotated to adjust the transverse position of the water-cooling coupling lens group mounting cylinder 1. The differential screw 2 and the spring fixing screw 3 are both fixed on the coupler rear base 6 through threads. One end of a longitudinal screw 4 is fixed with the coupler rear base 6 through threads, and the other end of the longitudinal screw is connected with an inner cylinder 12 in the water-cooled coupler lens mounting cylinder 1 through a positioning pin. The coupler front base 5 and the coupler rear base 6 are fixed through four screws. The coupler front base 5 has a circular hole a for laser input. The coupler rear base 6 has a circular hole B therein for laser output. The coupler rear base 6 can be connected with standard interfaces QBH, QD, LLK-B, LLK-D and the like of industrial transmission optical fibers through screws.
In this embodiment, in the water-cooled coupling lens assembly mounting barrel 1, the water-cooled outer barrel 11 has a water passage, a water inlet is C, and a water outlet is D. The inner cylinder 12 and the water-cooling outer cylinder 11 are combined in a sliding fit mode, a positioning pin mounting threaded hole G is formed in the inner cylinder 12, and a U-shaped hole H is formed in the water-cooling outer cylinder 11, so that the inner cylinder 12 and the water-cooling outer cylinder 11 can slide in the range of the U-shaped hole. The positioning pin arranged at the threaded hole G is connected with the clamping groove of the longitudinal screw 4, and the longitudinal position of the inner barrel 12 can be adjusted through the rotation of the longitudinal screw 4. The inner barrel 12 is provided with a step structure for mounting the coupling lens group 13 and is fixed by a threaded press ring 14.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A water-cooled laser coupler, comprising:
the water-cooling coupling lens group mounting cylinder is fixed on a rear base of the coupler through a differential adjusting screw, and the transverse position of the water-cooling coupling lens group mounting cylinder is adjusted by rotating the differential adjusting screw; and
and the front base is fixedly connected with the rear base of the coupler.
2. The water-cooled laser coupler of claim 1, wherein the water-cooled coupling mirror set mounting cylinder comprises:
the outer cylinder is provided with a water passage, and the water passage is connected with the water cooler; and
and the inner cylinder is matched and combined with the outer cylinder in a sliding way.
3. The water-cooled laser coupler of claim 2, wherein the water-cooled coupling lens assembly mounting cylinder is further connected to the rear base and the inner cylinder by a longitudinal screw, and the longitudinal screw is rotated to adjust the longitudinal position of the water-cooled coupling lens assembly mounting cylinder.
4. The water-cooled laser coupler of claim 3, wherein the inner barrel has a threaded bore, and the longitudinal screw is mounted to the threaded bore by a locating pin.
5. The water-cooled laser coupler of claim 4, wherein the outer barrel has a U-shaped hole therein, and the inner barrel and the outer barrel slide along the extent of the U-shaped hole.
6. The water-cooled laser coupler of claim 5, wherein the water-cooled coupling lens group mounting cylinder is fixed to the rear base of the coupler by a differential adjusting screw and a spring fixing screw, and the differential adjusting screw is rotated to adjust the transverse position of the water-cooled coupling lens group mounting cylinder.
7. The water-cooled laser coupler of claim 5 or 6, wherein the inner barrel is provided with a step structure, a coupling lens set is mounted, and the coupling lens set is fixed through a threaded pressure ring.
8. The water-cooled laser coupler of claim 7, wherein the front base has a circular hole for inputting laser light.
9. The water-cooled laser coupler of claim 8, wherein the rear base has a circular hole to output laser light.
10. The water-cooled laser coupler of claim 9, wherein the rear mount interfaces with an industry transmission fiber standard interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390531.5A CN110927900A (en) | 2019-12-27 | 2019-12-27 | Water-cooled laser coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390531.5A CN110927900A (en) | 2019-12-27 | 2019-12-27 | Water-cooled laser coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110927900A true CN110927900A (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390531.5A Pending CN110927900A (en) | 2019-12-27 | 2019-12-27 | Water-cooled laser coupler |
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| Country | Link |
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| CN (1) | CN110927900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219593A (en) * | 2021-05-06 | 2021-08-06 | 深圳市中葛科技有限公司 | Optical fiber coupler |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006026720A3 (en) * | 2004-08-31 | 2007-04-05 | Opto Technology Inc | Optic fiber led light source |
| CN102081199A (en) * | 2010-12-17 | 2011-06-01 | 扬州科莱斯激光技术有限公司 | Fiber coupling device of high-power semiconductor laser |
| CN104880780A (en) * | 2014-02-27 | 2015-09-02 | 三菱电机株式会社 | Optical Module And Light Transmission Method |
-
2019
- 2019-12-27 CN CN201911390531.5A patent/CN110927900A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006026720A3 (en) * | 2004-08-31 | 2007-04-05 | Opto Technology Inc | Optic fiber led light source |
| CN102081199A (en) * | 2010-12-17 | 2011-06-01 | 扬州科莱斯激光技术有限公司 | Fiber coupling device of high-power semiconductor laser |
| CN104880780A (en) * | 2014-02-27 | 2015-09-02 | 三菱电机株式会社 | Optical Module And Light Transmission Method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219593A (en) * | 2021-05-06 | 2021-08-06 | 深圳市中葛科技有限公司 | Optical fiber coupler |
| CN113219593B (en) * | 2021-05-06 | 2022-10-21 | 深圳市中葛科技有限公司 | Optical fiber coupler |
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Application publication date: 20200327 |
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| RJ01 | Rejection of invention patent application after publication |