CN102544992A - Laser crystal clamp and method for clamping laser crystal - Google Patents
Laser crystal clamp and method for clamping laser crystal Download PDFInfo
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- CN102544992A CN102544992A CN2011101036543A CN201110103654A CN102544992A CN 102544992 A CN102544992 A CN 102544992A CN 2011101036543 A CN2011101036543 A CN 2011101036543A CN 201110103654 A CN201110103654 A CN 201110103654A CN 102544992 A CN102544992 A CN 102544992A
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- heat sink
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- laser crystal
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- receiving space
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Abstract
The invention relates to a laser crystal clamp and a method for clamping a laser crystal. The laser crystal clamp comprises a first heat sink with heat conductivity, a second heat sink with heat conductivity, and a blocking part. The first heat sink and the second heat sink are buckled to form an accommodating space for clamping the crystal wrapped by a film heat conducting material. At least one of the first heat sink and the second heat sink is provided with a through hole communicated with the accommodating space. The blocking part is arranged at one end of the through hole far away from the accommodating space and is used for blocking the through hole. According to the clamp, the heat conducting efficiency is improved.
Description
Technical field
The present invention relates to the laser technique field, relate in particular to a kind of method of crystal anchor clamps and a kind of clamping laser crystal of laser.
Background technology
At present, when the clamping optical crystal, need wrap up one deck indium foil at plane of crystal usually, with heat sink the good effect that contacts arranged through the upper and lower heat sink crystal that reaches of screw in compression then.
In pump light pumping crystal; Because pump light is to loss of the quantum of laser and spontaneous radiation loss etc.; Total some heat is created in the laser crystal in the pump light; This just causes the laser crystal temperature to raise, and makes laser crystal produce effects such as thermal lens and thermic diffraction loss, has influenced output power of laser and beam quality.Usually; Laser crystal need be installed in one by in the good material of heat conduction such as copper or aluminium; And parcel one deck indium foil on the laser crystal surface; Help further heat conduction, can be good at being delivered to metal heat sink, let the heat sink stationary temperature of keeping through thermoelectric cooling or recirculated cooling water equitemperature control technology again to guarantee the heat that produces on the crystal.Therefore whether the thermo-contact between crystal, indium foil and the heat sink three then is the key of whole link well.
The technical scheme that adopts at present has: be placed on down on the heat sink corresponding installation site after at first with indium foil crystal being wrapped up; In order to guarantee crystal and heat sink assembly and to have good thermo-contact between two heat sink assemblies up and down; And the needs that install and fix, incite somebody to action two heat sink coupling together up and down again with screw usually.For indium foil is contacted with crystal fully, to improve the heat-conducting effect of crystal, the crystal that clamping is good is put into heating cabinet and is heated to 180 degree, indium foil is melted fully, (just welding the process of crystal).
But, because crystal anchor clamps (upper and lower heat sink) surface is coated with one deck gold usually, for crystal; This gold is stronger to the absorption affinity of indium foil, and the crystal chucking surface is not gold-plated the time, because the absorption affinity of metal pair indium foil is also strong than nonmetal; So indium foil probably is bonded on the crystal anchor clamps in heating process, and has broken away from plane of crystal; Will reduce the heat transfer efficiency of crystal like this, also just lose the meaning of welding crystal.
Summary of the invention
Main purpose of the present invention is to provide a kind of laser crystal anchor clamps, is intended to improve the heat transfer efficiency of laser crystal.
The present invention also aims to provide a kind of laser crystal to add the method for holding, be intended to improve the heat transfer efficiency of laser crystal.
In order to achieve the above object, the present invention proposes a kind of laser crystal anchor clamps, is used for clamping to be enclosed with the laser crystal of film Heat Conduction Material, and these laser crystal anchor clamps comprise first heat sink, the second heat sink and plug members with thermal conductivity.Said first heat sink and the second heat sink fastening is formed for the said receiving space that is enclosed with the crystal of film Heat Conduction Material of clamping; Said first heat sink and second among heat sink at least one is provided with the through hole that is communicated with said receiving space; Said plug members is arranged on the end away from said receiving space of said through hole, is used to stop up this through hole.
Further, said plug members is the resilient plug that cooperates with said through hole, the spring that perhaps said plug members comprises the screw that cooperates with said through hole and is arranged on the screw bottom.
Further, it is said first heat sink that said through hole is arranged on, and perhaps second is heat sink, perhaps first heat sink and second enthusiasm.
Further, said through hole and said plug members are a plurality of, the corresponding obstruction of each plug members one, two or more through hole.
Further, said through hole is a plurality of, wherein is arranged on same at least two heat sink through holes and samely is interconnected in heat sink at this.
Further, be positioned at same heat sink and have common port at a end away from said receiving space at said same heat sink two through holes that are interconnected.
Further, the port that communicates with said receiving space of said a plurality of through holes is shaped as a kind of in circle, rectangle, triangle or the polygon.
The present invention also provides a kind of method of clamping laser crystal; This method comprises: provide first heat sink, second heat sink; This first heat sinkly is provided with through hole with this second in heat sink at least one; Fasten the said first heat sink and second heat sink formation receiving space, this through hole is communicated with receiving space, closely places the laser crystal that is enclosed with the heat conduction thin-film material in the receiving space; With said first heat sink and second heat sink the fixed connection, make of the end shutoff that with said receiving space be connected of said heat conduction thin-film material with said through hole; Heat-conducting liquid is provided, heat-conducting liquid is injected from the end of said through hole away from said receiving space, heat-conducting liquid contacts with the heat conduction thin-film material; Plug members is provided, adopts said plug members that the port of the said receiving space of principle of said through hole is sealed.
Further; Said plug members is a resilient plug; The method of said clamping laser crystal also comprises: push said resilient plug, make said resilient plug pressure transfer to said heat conduction thin-film material through said heat-conducting liquid, make said thin-film material further be adjacent to said laser crystal.
A kind of laser crystal anchor clamps that the present invention proposes and the method for clamping laser crystal; Through on first heat sink and second in heat sink at least one of clamping laser crystal, through hole being set; This through hole is heat sink with first and the second heat sink receiving space that fastens the clamping laser crystal of back formation is communicated with, and in receiving space, injects liquid through through hole, stops up through hole through plug members such as resilient plug or screws; Formation is to the hydraulic pressure on laser crystal surface; When making four surfaces of crystal evenly stressed, can also reach crystal and the effect that the heat conduction thin-film material contacts fully, improve the heat transfer efficiency of laser crystal.
Description of drawings
Fig. 1 is the laser crystal anchor clamps first example structure decomposing schematic representation of the present invention;
Fig. 2 goes up heat sink screw installed surface sketch map among laser crystal anchor clamps first embodiment of the present invention;
Fig. 3 is a heat sink longitudinal section generalized section on the A-A direction among Fig. 2;
Fig. 4 goes up heat sink cross sectional representation among laser crystal anchor clamps first embodiment of the present invention;
Fig. 5 is the schematic flow sheet of the method for clamping laser crystal of the present invention.
In order to make technical scheme of the present invention clearer, clear, will combine accompanying drawing to do further to detail below.
Embodiment
Embodiment of the invention solution is mainly through being provided with at least one through hole on heat sink on the clamping crystal and/or heat sink down; This through hole is communicated with the upper and lower heat sink receiving space that fastens the clamping crystal of back formation; And in receiving space, inject liquid through through hole, and stop up through hole through plug members such as resilient plug or screws, form hydraulic pressure to plane of crystal; When making four surfaces of crystal evenly stressed, can also reach the effect that crystal and indium foil contact fully.
Please consult Fig. 1 to Fig. 4 in the lump, Fig. 1 be the laser crystal anchor clamps first example structure decomposing schematic representation of the present invention, Fig. 2 be go up among laser crystal anchor clamps first embodiment of the present invention heat sink screw installed surface sketch map, Fig. 3 be among Fig. 2 on the A-A direction heat sink longitudinal section generalized section, Fig. 4 go up heat sink cross sectional representation among laser crystal anchor clamps one embodiment of the present invention.One embodiment of the invention proposes a kind of laser crystal anchor clamps; Comprise heat sink 1 and down heat sink 3; Go up on heat sink 1 and down heat sink 3 and be equipped with groove 5; Go up heat sink 1 with heat sink 3 fasten back two grooves 5 and be formed for the receiving space that clamping is enclosed with the crystal 2 of indium foil down; Go up and to be provided with 5 that is communicated with receiving space, as to be used in receiving space, injecting a liquid through hole 6 on heat sink 1 at least, be provided with in the through hole 6 liquid stopped up and the crystal 2 surface is imposed hydraulic pressure and make indium foil and the surperficial tight plug members 4 that contacts of crystal 2.
In the present embodiment; Upper and lower heat sink 1,3 are the good materials of heat conduction such as copper or aluminium processes; After in the crystal 2 that will be enclosed with indium foil is placed on the groove on following heat sink 3; Be fixedly connected upper and lower heat sink 1,3 through screw and screw mounting hole 7, afterwards will upper and lower heat sink 1,3 weld, to improve upper and lower heat sink 1, thermo-contact and tightness between 3.
In order to improve the thermal conductivity of crystal; Can last heat sink 1 or down heat sink 3 or both be equipped with the through hole 6 that is communicated with receiving space 5; And to receiving space 5 in, injects liquid through through hole 6, and make liquid inflow indium foil surperficial, the effect through hydraulic pressure makes indium foil be adjacent to the crystal 2 surface; Perhaps have under the damaged situation, make liquid be full of the space between indium foil and the crystal 2 surface, further make indium foil be melted in the crystal 2 surface at indium foil; And, because the effect of expanding with heat and contract with cold of liquid is greater than solid, when having sealed liquid up for safekeeping in the through hole; Temperature is big more; The pressure that liquid produces is just big more, then impels indium foil to contact with crystal more easily, thereby reaches the tight purpose that contacts, improves the crystal 2 thermal conductivity between crystal 2 and the indium foil.
When liquid is injected on crystal 2 surface to receiving space 5 in through through hole 6, need slowly to inject, if injection is too fast, the excessive meeting of liquid is overflowed and is polluted the crystal 2 end face.
Because indium foil is exposed to oxidation easily in the air, therefore externally adopts plug members 4 that through hole 6 is sealed, and simultaneously, also can further apply the pressure to liquid, is convenient to liquid and better flows into the crystal 2 surface.
In the present embodiment, plug members 4 is the resilient plug 4 that cooperates with through hole 6, specifically can be elastic caoutchouc, because rubber is flexible, can not strengthen the stress to crystal.In other embodiments; Also screw thread can be set in through hole, 4 of plug members can adopt the screw that cooperates with through hole 6, simultaneously; In the screw bottom spring is set; Through screw through hole 6 is stopped up, and utilize the elastic acting force of spring that liquid is pressed to the crystal 2 surface, crystal 2 is closely contacted with indium foil; Wherein, the effect of spring also can reduce crystal stress.
In the present embodiment, through hole 6 is arranged on heat sink 1, and its quantity is two, is separately positioned between two screw mounting holes 7, in other embodiments, also can through hole 6 be arranged on down on heat sink 3, and perhaps upper and lower heat sink 1,3 all are provided with through hole 6.The quantity of through hole 6 also can be one or more, and when being two or more through hole 6, through hole 6 can be arranged by pre-defined rule in order, such as matrix form or cellular etc., perhaps be disorderly arrangement.
The size of through hole 6 can be set according to actual conditions, such as, can be that diameter is that 1mm, length are the through hole 6 of 6mm,
Further, through hole 6 is provided with rule and can also is, a surface corresponding one, two or more through hole 6 of crystal 2; The through hole 6 of crystal 2 surface be shaped as a kind of in circle, rectangle, triangle or the polygon; Perhaps plug members 4 one of correspondence, a two or more through hole 6 are a plurality of through holes 6 shared same liquid injection channels.
In the present embodiment; Liquid can be mercury, heat-conducting glue or the chemical agent with thermal conductivity; Perhaps chemical agent for reacting such as rubber stopper or screw with plug members 4, such as, when liquid and rubber stopper generation chemical reaction; Make rubber stopper from through hole 6, to disassemble, but on permanent set and the clamping tooling (going up heat sink or following heat sink); Chemical reactions also can be take place with plug members 4 in liquid, and in such cases, plug members 4 can be dismantled, and the liquid of injection can also flow out, replacing etc.Liquid also can be chosen in the liquid that a period of time becomes solid or colloid after such as the scheduled time.
Need to prove, fill in such as resilient plug in the process of through hole at plug members 4, its fill in degree can controlling liquid to the pressure of crystal 2, resilient plug can adopt bolt shape, rotate into, thereby the pressure of continuable adjusting liquid.
As shown in Figure 5, the present invention proposes a kind of method that adopts above-mentioned laser crystal anchor clamps, may further comprise the steps:
Step S101 will go up and heat sinkly form receiving space with following heat sink fastening, and clamping is enclosed with the crystal of indium foil, through screw with upper and lower heat sink fixed connection;
Step S102 injects liquid through last through hole on heat sink in said receiving space, make liquid flow into the indium foil surface;
Step S103 adopts plug members that through hole is sealed, and liquid is pressed, and through hydraulic action indium foil is closely contacted with plane of crystal.
Embodiment of the invention laser crystal anchor clamps, through on the clamping crystal 2 heat sink 1 and/or down heat sink on 3 at least one through hole 6 is set, the receiving space 5 that this through hole 6 and upper and lower heat sink 1,3 fastens the clamping crystal 2 of back formation is communicated with; And pass through through hole 6 and in receiving space 5, inject liquid, stop up through holes 6 through plug members such as resilient plug or screw 4, form hydraulic pressure to the crystal 2 surface; Make four surfaces of crystal 2 stressed evenly, eliminate or reduced the crystal 2 surface stress, simultaneously; When not changing the Facing material of crystal 2 own; Can also strengthen the absorption affinity of crystal 2, reach crystal 2 and the effect that indium foil contacts fully, improve the heat conduction contact of crystal 2 indium foil; Thereby improved the heat transfer efficiency of crystal 2, the result of more perfect prior art welding crystal 2.
In addition, the above uses indium foil parcel crystal 2 is a kind of giving an example, and the crystal 2 colleague can use other film Heat Conduction Materials parcels, and laser crystal anchor clamps of the present invention are equally applicable to the crystal of other film Heat Conduction Materials of clamping parcel.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. laser crystal anchor clamps; Being used for clamping is enclosed with the laser crystal of film Heat Conduction Material; It is characterized in that; These laser crystal anchor clamps comprise first heat sink, the second heat sink and plug members with thermal conductivity, and said first heat sink and the second heat sink fastening is formed for the said receiving space that is enclosed with the crystal of film Heat Conduction Material of clamping, and said first heat sink and second among heat sink at least one is provided with the through hole that is communicated with said receiving space; Said plug members is arranged on the end away from said receiving space of said through hole, is used to stop up this through hole.
2. laser crystal anchor clamps according to claim 1 is characterized in that, said plug members is the resilient plug that cooperates with said through hole, the spring that perhaps said plug members comprises the screw that cooperates with said through hole and is arranged on the screw bottom.
3. laser crystal anchor clamps according to claim 1 is characterized in that, it is said first heat sink that said through hole is arranged on, and perhaps second is heat sink, perhaps first heat sink and second enthusiasm.
4. laser crystal anchor clamps according to claim 1 is characterized in that, said through hole and said plug members are a plurality of, the corresponding obstruction of each plug members one, two or more through hole.
5. laser crystal anchor clamps according to claim 1 is characterized in that, said through hole is a plurality of, wherein are arranged on same at least two heat sink through holes and samely are interconnected in heat sink at this.
6. laser crystal anchor clamps according to claim 6 is characterized in that, are positioned at same heat sink and have common port at said same heat sink two through holes that are interconnected at the end away from said receiving space.
7. according to the described laser crystal anchor clamps of claim 4 to 6, it is characterized in that, the port that communicates with said receiving space of said a plurality of through holes be shaped as a kind of in circle, rectangle, triangle or the polygon.
8. the method for a clamping laser crystal is characterized in that, may further comprise the steps:
Provide first heat sink, second heat sink; This first heat sinkly is provided with through hole with this second in heat sink at least one; Fasten the said first heat sink and second heat sink formation receiving space, this through hole is communicated with receiving space, closely places the laser crystal that is enclosed with the heat conduction thin-film material in the receiving space; With said first heat sink and second heat sink the fixed connection, make of the end shutoff that with said receiving space be connected of said heat conduction thin-film material with said through hole;
Heat-conducting liquid is provided, heat-conducting liquid is injected from the end of said through hole away from said receiving space, heat-conducting liquid contacts with the heat conduction thin-film material;
Plug members is provided, adopts said plug members that the port of the said receiving space of principle of said through hole is sealed.
9. the method for clamping laser crystal according to claim 8; It is characterized in that: said plug members is a resilient plug; The method of said clamping laser crystal also comprises: push said resilient plug; Make said resilient plug pressure transfer to said heat conduction thin-film material, make said thin-film material further be adjacent to said laser crystal through said heat-conducting liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101036543A CN102544992A (en) | 2011-02-25 | 2011-04-25 | Laser crystal clamp and method for clamping laser crystal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110045865.6 | 2011-02-25 | ||
| CN201110045865 | 2011-02-25 | ||
| CN2011101036543A CN102544992A (en) | 2011-02-25 | 2011-04-25 | Laser crystal clamp and method for clamping laser crystal |
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| CN102544992A true CN102544992A (en) | 2012-07-04 |
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| CN2011101036543A Pending CN102544992A (en) | 2011-02-25 | 2011-04-25 | Laser crystal clamp and method for clamping laser crystal |
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Cited By (7)
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| CN103326218A (en) * | 2013-04-23 | 2013-09-25 | 中国科学院上海光学精密机械研究所 | Device for enlarging clear aperture of laser crystal and installing method thereof |
| CN105244735A (en) * | 2015-10-30 | 2016-01-13 | 武汉华日精密激光有限责任公司 | Heat radiation structure of end-pumped laser crystal and clamping method of laser crystal |
| CN105322415A (en) * | 2014-06-18 | 2016-02-10 | 苏州天弘激光股份有限公司 | Crystal holding structure and crystal holding welding method |
| CN107887781A (en) * | 2017-11-29 | 2018-04-06 | 山东航天电子技术研究所 | A kind of optical fiber output LD pumpings minimize medium module |
| CN108155543A (en) * | 2018-01-30 | 2018-06-12 | 福州晶元光电科技有限公司 | A kind of laser crystal component |
| 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 |
| CN114361916A (en) * | 2021-11-30 | 2022-04-15 | 中国电子科技集团公司第十一研究所 | Heat sink structural part for laser and laser with heat sink structural part |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103326218A (en) * | 2013-04-23 | 2013-09-25 | 中国科学院上海光学精密机械研究所 | Device for enlarging clear aperture of laser crystal and installing method thereof |
| CN103326218B (en) * | 2013-04-23 | 2016-05-11 | 中国科学院上海光学精密机械研究所 | Laser crystal clear aperture expansion instrument and installation method thereof |
| CN105322415A (en) * | 2014-06-18 | 2016-02-10 | 苏州天弘激光股份有限公司 | Crystal holding structure and crystal holding welding method |
| CN105244735A (en) * | 2015-10-30 | 2016-01-13 | 武汉华日精密激光有限责任公司 | Heat radiation structure of end-pumped laser crystal and clamping method of laser crystal |
| CN107887781A (en) * | 2017-11-29 | 2018-04-06 | 山东航天电子技术研究所 | A kind of optical fiber output LD pumpings minimize medium module |
| CN108155543A (en) * | 2018-01-30 | 2018-06-12 | 福州晶元光电科技有限公司 | A kind of laser crystal component |
| CN108155543B (en) * | 2018-01-30 | 2024-02-13 | 福州晶元光电科技有限公司 | Laser crystal assembly |
| 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 |
| CN114361916A (en) * | 2021-11-30 | 2022-04-15 | 中国电子科技集团公司第十一研究所 | Heat sink structural part for laser and laser with heat sink structural part |
| CN114361916B (en) * | 2021-11-30 | 2023-12-26 | 中国电子科技集团公司第十一研究所 | Heat sink structural part for laser and laser with heat sink structural part |
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Application publication date: 20120704 |