CN106785827A - A kind of adjustable gain medium of solid laser cooling device of various dimensions - Google Patents
A kind of adjustable gain medium of solid laser cooling device of various dimensions Download PDFInfo
- Publication number
- CN106785827A CN106785827A CN201710048096.2A CN201710048096A CN106785827A CN 106785827 A CN106785827 A CN 106785827A CN 201710048096 A CN201710048096 A CN 201710048096A CN 106785827 A CN106785827 A CN 106785827A
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- China
- Prior art keywords
- heat sink
- cooling device
- gain medium
- various dimensions
- adjustable gain
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/0405—Conductive cooling, e.g. by heat sinks or thermo-electric elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/02—Constructional details
- H01S3/04—Arrangements for thermal management
- H01S3/042—Arrangements for thermal management for solid state lasers
Abstract
The invention discloses a kind of adjustable gain medium of solid laser cooling device of various dimensions, including heat sink component, connecting rod and can multidimensional regulation adjustment frame plate, heat sink component is made up of upper and lower heat sink pairing, pairing constitutes laser pump cavity to groove therewith during upper and lower heat sink pairing, optical crystal is housed in the laser pump cavity, heat sink component is connected by connecting rod with adjustment frame plate.The present invention can reduce heat consumption, improve radiating efficiency, while improving the coupling efficiency of pump light.
Description
Technical field
The present invention relates to field of lasers, specifically a kind of adjustable gain medium of solid laser cooling device of various dimensions.
Background technology
Solid state laser has the advantages such as energy is big, peak power is high, particularly laser diode-pumped Solid State Laser
Device, even more has the advantages that small volume, lightweight, good beam quality, long lifespan, goes slick, as Solid State Laser in recent years
One of focus of technical research and development, in industrial processes, laser chemistry, spectrum analysis, laser ranging, health care and military affairs
Field has a wide range of applications, and economic development, scientific and technological progress and living standards of the people is improved and plays huge impetus.
But, the fuel factor that solid state laser is produced because pump power is not fully used is restriction Solid State Laser
Device realizes the bottleneck of high power, high efficiency and high optical quality, is all paid close attention to by scientific research personnel always.Compared to traditional lamp
The a large amount of harmful effect heat consumptions produced in pump solid state laser laser medium, the solid state laser of diode pumping reduces light
Crystal heat consumption is learned, but is not completely eliminated.Accordingly, it would be desirable to derive optical crystal using the small method of effective, harmful effect
Interior heat realizes the radiating to optical crystal.
Conventional heat dissipating method is that laser medium is radiated using gas, liquid, mixed liquor, heat pipe, microchannel etc..Its
In, it is heat sink to be clamped in optical crystal surface in end-face pump solid laser, can be relatively easy and effectively derive it
One of mode of middle heat.Heat sink usual use thermal conductivity metal material higher, the process nature of radiating is put by heat sink
Swap out heat as much as possible.Conventional water-cooled optical crystal radiating it is heat sink for processing considerations, usually using simple logical
Water-bound is designed, and generally straight directly to go out, radiating efficiency can give a discount.But in order that with it is simple it is cheap it is heat sink as much as possible
Realize radiating, it may be considered that increase the mode of heat sink regulation.Optical crystal is adjusted in laser cavity by adjusting heat sink dimension
Middle position, overlaps with whole light path in the horizontal and vertical directions as much as possible, so that pump light more can be coupled into optics
It is absorbed and used in crystal, improves the coupling efficiency of pump light.
The content of the invention it is an object of the invention to provide a kind of adjustable gain medium of solid laser cooling device of various dimensions,
To solve the problems, such as optical crystal heat consumption in prior art laser.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of adjustable gain medium of solid laser cooling device of various dimensions, it is characterised in that：Including heat sink component, connecting rod and
Can multidimensional regulation adjustment frame plate, the heat sink component constitutes by being fixedly connected after upper and lower heat sink pairing, it is upper and lower it is heat sink each
Groove is respectively equipped with contact surface, groove location is mutually corresponded to, pairing constitutes laser pump cavity to groove therewith during upper and lower heat sink pairing,
Optical crystal is housed in the laser pump cavity, the heat sink component is connected by connecting rod with adjustment frame plate.
A kind of described various dimensions are adjustable gain medium of solid laser cooling device, it is characterised in that：Described heat sink group
In part, it is upper and lower it is heat sink be made up of metallic copper or red copper material respectively, when material be red copper when, plated respectively in upper and lower heat sink surface
There is layer gold.
A kind of described various dimensions are adjustable gain medium of solid laser cooling device, it is characterised in that：Described heat sink group
In part, it is upper and lower it is heat sink be located normal to have semicircular indent respectively on two end faces of optical crystal thang-kng, to prevent optics
The harmful effects such as the pollution that plane of crystal is caused due to touching.
A kind of described various dimensions are adjustable gain medium of solid laser cooling device, it is characterised in that：Described heat sink group
In part, upper and lower heat sink inside is respectively equipped with water flowing duct, and water flowing duct two ends are connected with external water low-temperature receiver respectively.
A kind of described various dimensions are adjustable gain medium of solid laser cooling device, it is characterised in that：The optics is brilliant
It is enclosed with indium sheet in vitro.
A kind of described various dimensions are adjustable gain medium of solid laser cooling device, it is characterised in that：The connecting rod
Be three sections of bending structures, wherein first paragraph is in 90 degree to be vertically arranged, between first paragraph and second segment, second segment and the 3rd section it
Between in obtuse angle, the obtuse angle according to the height general design of laser optical path between 100 ~ 150 degree, in the heat sink component under it is heat sink
It is fixed in the 3rd section of connecting rod, connecting rod first paragraph is fixed on adjustment frame plate.
A kind of described various dimensions are adjustable gain medium of solid laser cooling device, it is characterised in that：The adjustment frame
Plate is multidimensional adjustment frame, and multidimensional adjustment frame is fixed on optical experiment bench entirely through base, and the heat sink component is by connecting
Extension bar is connected with the adjustable part of multidimensional adjustment frame.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1st, the invention provides a kind of gain medium of solid laser cooling device, heat sink and optics can be realized using frame plate is adjusted
The direction adjustment of crystal, by the position for adjusting heat sink direction to adjust optical crystal, makes optical crystal in level as far as possible
Overlapped with whole light path with vertical direction, be absorbed and used so that pump light more can be coupled into optical crystal, and then
Heat consumption is reduced, radiating efficiency is improved, while improving the coupling efficiency of pump light.
2nd, the heat sink easy to process, assembling of optical crystal in the present invention, under funds, condition limited circumstances, is more suitable for experiment
Room is used for exploratory experiment.
Brief description of the drawings
Fig. 1 is the adjustable gain medium of solid laser cooling device schematic diagram of various dimensions.
Fig. 2 is the adjustable gain medium of solid laser cooling device laser pump cavity of various dimensions along optical axis direction part sectioned view.
Specific embodiment
A kind of as shown in Figure 1 and Figure 2, the adjustable gain medium of solid laser cooling device of various dimensions, including heat sink component,
Connecting rod 1 and can multidimensional regulation adjustment frame plate 2, heat sink component is constituted by being fixedly connected after upper and lower heat sink 3,4 pairings, upper and lower
Be respectively equipped with groove on heat sink 3,4 respective contact surfaces, groove location is mutually corresponded to, upper and lower heat sink 3,4 pairing when groove it is right therewith
Close and constitute laser pump cavity 5, optical crystal 6 is housed in the laser pump cavity 5, heat sink component is connected by connecting rod 1 with adjustment frame plate 2.
In heat sink component, upper and lower heat sink 3,4 are made up of metallic copper or red copper material respectively, when material is red copper,
Upper and lower heat sink 3,4 surfaces are coated with layer gold respectively.
In heat sink component, upper and lower heat sink 3,4 are located normal to have semicircle respectively on two end faces of the thang-kng of optical crystal 6
The indent 7 of shape, to prevent the surface of optical crystal 6 due to touching the harmful effects such as the pollution for causing.
In heat sink component, be provided with inside upper heat sink 3 water flowing duct 8, under be provided with water flowing duct 9, water flowing duct inside heat sink 4
8th, 9 two ends are connected with external water low-temperature receiver respectively.
Optical crystal 6 is wrapped with indium sheet.
Connecting rod 1 is three sections of bending structures, wherein first paragraph 1.1 to be vertically arranged, first paragraph 1.1 and second segment 1.2 it
Between be in 90 degree, between second segment 1.2 and the 3rd section 1.3 in obtuse angle, the obtuse angle is according to the height general design of laser optical path 100
Between ~ 150 degree, in heat sink component under heat sink 4 be fixed in the 3rd section 1.3 of connecting rod 1, the first paragraph 1.1 of connecting rod 1 is fixed on tune
On whole frame plate 2.
Adjustment frame plate 2 is multidimensional adjustment frame, and multidimensional adjustment frame is fixed on optical experiment bench entirely through base 10, heat
Heavy component is connected by connecting rod 1 with the adjustable part of multidimensional adjustment frame.
In the present invention, upper and lower heat sink 3,4 its size all be 10mm × 20mm × 18mm, be in contact two contact surfaces difference
There are 90 ° of grooves, the size in indent section can be 2mm × 2mm ~ 5mm × 5mm, formed after combination and place the rectangular of optical crystal
Body laser pump cavity 5.The shape of optical crystal 6 of placement is cuboid.
In other modes, if 90 ° of grooves are designed into arc-shaped groove, it is also possible to place the laser that shape is cylinder
Rod.
In embodiment of above, optical crystal 6 can be laser crystal optic or additive mixing optical crystal.
Upper heat sink 3, on two end faces of crystal thang-kng, there is a radius at heat sink 4 respective groove two ends under respectively
The semicircle indent 7 of about 3.5mm, the 3 ~ 5mm of depth of indent 7, the dirt that can prevent the surface of optical crystal 6 from being caused due to touching
The harmful effects such as dye.
Upper heat sink 3, heat sink 4 its material have been respectively adopted the red copper that thermal conductivity factor is 386.4W/mK under, and surface is to prevent copper
Oxidation one layer of thin gold of plating, the thermal conductivity factor of gold is 317W/mK, it is ensured that upper and lower heat sink high thermal conductivity coefficient, so as in material side
Kept man of a noblewoman first ensure that can effectively be radiated to crystal.
Upper heat sink 3, under after heat sink 4 laminating, it is fastenedly connected using four screws, using in order that the two of crystal must be put
Left no gaps between the laser pump cavity 9 of heat sink device, the surrounding of optical crystal 6 has wrapped up a layer thickness about indium sheet of 0.1mm.
Further, it is contemplated that the optical crystal 6 that distance needs are radiated is nearer, and the speed that heat is passed to is faster, more has
Beneficial to radiating.Of the invention heat sink 3, under heat sink 4 respectively correspond to devise diameter about 5 ~ 10mm water flowings duct 8,9, limbers
Road 8,9 is determined close proximity to laser pump cavity 5, the diameter in water flowing duct 8,9 according to the size of laser pump cavity 5, the size of usual laser pump cavity 5
4mm × below 4mm is maintained at, then the diameter in water flowing duct 8,9 can generally achieve more than 6mm.Design in bilateral water hole, it is also possible to
Improve the efficiency of radiating.
In embodiment of above, water flowing duct 8,9 two ends connect water nozzle respectively, twined on water nozzle raw material band prevent leak,
Situations such as infiltration.It is connected with water pipe again by water nozzle, is connected on water cooling unit by water pipe afterwards, temperature control tune is carried out by water cooling unit
Section realizes radiating.
The linked set of similar " L " type of connecting rod of the invention 1, the 3rd section 1.3 of connecting rod 1 is heat sink by screw with
It is fixed together, the first paragraph 1.1 of connecting rod 1 is together with adjusting frame plate 2 and being fixed by screws in.Connecting rod 1 its material can be selected
Aluminium or the metalloid of iron one are selected, thickness is between 3 ~ 6 millimeters.
Further, 1.2 one-tenth 90 degree of the first paragraph 1.1 of connecting rod 1 and second segment, second segment 1.2 and the 3rd section of 1.3 parts
Into obtuse angle, obtuse angle angle can be according to the height general design of laser optical path between 100 ~ 150 degree.
, from multidimensional adjustment frame, be fixed on base 10 on optical table by screw by adjustment grillage 2 of the invention.Gu
Fixed position, determination is substantially moved towards according to laser optical path.
Further, multidimensional adjustment frame 3 front and back position in the optical path of base is adjusted, crystal can be on a large scale adjusted and be existed
Position in light path.
Further, adjustment grillage 2 carries out fine-tuning for dimension by adjusting knob, realize pitching to laser pump cavity 5,
The regulation of beat, finally realizes crystal various dimensions in the optical path, fine direction regulation.In order to improve sensitivity, adjustment plate
Frame 2 is directly to be capable of achieving using high-precision optical adjusting frame.
Heat sink device of the invention is particluarly suitable in end-face pump solid laser, not only can effectively carry out water-cooled
Radiating, meanwhile, can crystal direction in the optical path and position precisely and conveniently adjust.
Claims (7)
1. the adjustable gain medium of solid laser cooling device of a kind of various dimensions, it is characterised in that：Including heat sink component, connecting rod
And can multidimensional regulation adjustment frame plate, the heat sink component constitutes by being fixedly connected after upper and lower heat sink pairing, upper and lower heat sink each
Groove is respectively equipped with from contact surface, groove location is mutually corresponded to, pairing constitutes optically focused to groove therewith during upper and lower heat sink pairing
Chamber, houses optical crystal in the laser pump cavity, the heat sink component is connected by connecting rod with adjustment frame plate.
2. the adjustable gain medium of solid laser cooling device of a kind of various dimensions according to claim 1, it is characterised in that：
In the heat sink component, it is upper and lower it is heat sink be made up of metallic copper or red copper material respectively, when material be red copper when, upper and lower heat sink
Surface is coated with layer gold respectively.
3. the adjustable gain medium of solid laser cooling device of a kind of various dimensions according to claim 1, it is characterised in that：
In the heat sink component, it is upper and lower it is heat sink be located normal to have semicircular indent respectively on two end faces of optical crystal thang-kng,
To prevent optical crystal surface due to touching the harmful effects such as the pollution for causing.
4. the adjustable gain medium of solid laser cooling device of a kind of various dimensions according to claim 1, it is characterised in that：
In the heat sink component, upper and lower heat sink inside is respectively equipped with water flowing duct, and water flowing duct two ends connect with external water low-temperature receiver respectively
Connect.
5. the adjustable gain medium of solid laser cooling device of a kind of various dimensions according to claim 1, it is characterised in that：
The optical crystal is wrapped with indium sheet.
6. the adjustable gain medium of solid laser cooling device of a kind of various dimensions according to claim 1, it is characterised in that：
The connecting rod is three sections of bending structures, and wherein first paragraph is in 90 degree, second segment to be vertically arranged, between first paragraph and second segment
With the 3rd section between in obtuse angle, the obtuse angle according to the height general design of laser optical path between 100 ~ 150 degree, described heat sink group
Heat sink under in part to be fixed in the 3rd section of connecting rod, connecting rod first paragraph is fixed on adjustment frame plate.
7. the adjustable gain medium of solid laser cooling device of a kind of various dimensions according to claim 1, it is characterised in that：
The adjustment frame plate is multidimensional adjustment frame, and multidimensional adjustment frame is fixed on optical experiment bench entirely through base, described heat sink
Component is connected by connecting rod with the adjustable part of multidimensional adjustment frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048096.2A CN106785827A (en) | 2017-01-20 | 2017-01-20 | A kind of adjustable gain medium of solid laser cooling device of various dimensions |
| CN202111012648.7A CN113690721A (en) | 2017-01-20 | 2017-01-20 | Multi-dimensional adjustable solid laser gain medium cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710048096.2A CN106785827A (en) | 2017-01-20 | 2017-01-20 | A kind of adjustable gain medium of solid laser cooling device of various dimensions |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111012648.7A Division CN113690721A (en) | 2017-01-20 | 2017-01-20 | Multi-dimensional adjustable solid laser gain medium cooling device |
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| CN106785827A true CN106785827A (en) | 2017-05-31 |
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| CN202111012648.7A Pending CN113690721A (en) | 2017-01-20 | 2017-01-20 | Multi-dimensional adjustable solid laser gain medium cooling device |
| CN201710048096.2A Pending CN106785827A (en) | 2017-01-20 | 2017-01-20 | A kind of adjustable gain medium of solid laser cooling device of various dimensions |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111012648.7A Pending CN113690721A (en) | 2017-01-20 | 2017-01-20 | Multi-dimensional adjustable solid laser gain medium cooling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140950A (en) * | 2021-03-29 | 2021-07-20 | 常州莱特康光电科技有限公司 | Laser gain unit, manufacturing method of laser gain unit and laser gain module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0557182A1 (en) * | 1992-02-20 | 1993-08-25 | Sony Corporation | Laser light beam generating apparatus |
| CN201130811Y (en) * | 2007-12-19 | 2008-10-08 | 中国科学院长春光学精密机械与物理研究所 | Apparatus for regulating and controlling multiple frequency crystal temperature within laser resonant cavity |
| CN102163789A (en) * | 2011-03-09 | 2011-08-24 | 中国电子科技集团公司第十一研究所 | Micro-channel water-cooling heat-sink device and packaging method thereof |
| CN104505698A (en) * | 2014-12-23 | 2015-04-08 | 哈尔滨工业大学 | Heat dissipation device for end-pumped laser crystal and clamping method of laser crystal |
| CN105154975A (en) * | 2015-09-11 | 2015-12-16 | 中国科学院合肥物质科学研究院 | Near-1.33-mu-mu-wavelength thermally-bonded composite laser crystal and preparation method thereof |
-
2017
- 2017-01-20 CN CN202111012648.7A patent/CN113690721A/en active Pending
- 2017-01-20 CN CN201710048096.2A patent/CN106785827A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0557182A1 (en) * | 1992-02-20 | 1993-08-25 | Sony Corporation | Laser light beam generating apparatus |
| CN201130811Y (en) * | 2007-12-19 | 2008-10-08 | 中国科学院长春光学精密机械与物理研究所 | Apparatus for regulating and controlling multiple frequency crystal temperature within laser resonant cavity |
| CN102163789A (en) * | 2011-03-09 | 2011-08-24 | 中国电子科技集团公司第十一研究所 | Micro-channel water-cooling heat-sink device and packaging method thereof |
| CN104505698A (en) * | 2014-12-23 | 2015-04-08 | 哈尔滨工业大学 | Heat dissipation device for end-pumped laser crystal and clamping method of laser crystal |
| CN105154975A (en) * | 2015-09-11 | 2015-12-16 | 中国科学院合肥物质科学研究院 | Near-1.33-mu-mu-wavelength thermally-bonded composite laser crystal and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140950A (en) * | 2021-03-29 | 2021-07-20 | 常州莱特康光电科技有限公司 | Laser gain unit, manufacturing method of laser gain unit and laser gain module |
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| CN113690721A (en) | 2021-11-23 |
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