CN109066276B - A kind of laser amplifier - Google Patents
A kind of laser amplifier Download PDFInfo
- Publication number
- CN109066276B CN109066276B CN201810735336.0A CN201810735336A CN109066276B CN 109066276 B CN109066276 B CN 109066276B CN 201810735336 A CN201810735336 A CN 201810735336A CN 109066276 B CN109066276 B CN 109066276B
- Authority
- CN
- China
- Prior art keywords
- windowpane
- working media
- diameter
- runner
- laser amplifier
- Prior art date
- 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.)
- Active
Links
Classifications
-
- 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
- H01S3/0401—Arrangements for thermal management of optical elements being part of laser resonator, e.g. windows, mirrors, lenses
-
- 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
- H01S3/0407—Liquid cooling, e.g. by water
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Abstract
The present invention provides a kind of laser amplifiers, including laser amplifier main body, windowpane and sealing gland；The working media runner of perforation is equipped in the laser amplifier main body, the working media of filling flowing in working media runner；Working media runner two sides are symmetrically arranged with cooling chamber, and notch is equipped between each cooling chamber and working media runner；Windowpane one end sealing is placed in notch, and the windowpane other end is sealed by sealing gland and compressed；The sealing gland is mounted in laser amplifier main body；It is connected between symmetrical cooling chamber by through-hole；The laser amplifier main body is equipped with cooling liquid inlet and cooling liquid outlet, and the cooling liquid inlet is connected to a cooling chamber, and the cooling liquid outlet is connected to another cooling chamber.The present invention can cool down windowpane by injecting coolant liquid, greatly improve heat transfer rate, promote cooling effect, place windowpane in cooling chamber and arrange that structure is simple in a ring, easy to process.
Description
Technical field
The present invention relates to laser amplifier technical field, in particular to a kind of laser amplifier.
Background technique
Since nineteen sixty in the world first ruby laser come out, over more than 50 years, Development of Laser Technology is swift and violent, with
Multiple subjects combine and are widely used in laser spectroscopy, isotope purification, laser biology, laser medicine and big compression ring
The fields such as the spectral detection in border also have a wide range of applications in military and national defence.
Laser amplifier is one of the core component of laser and Dye Laser Amplification System.In laser amplifier system,
Signal laser source and pump light sequentially pass through the side windowpane of laser amplifier, working media, another simultaneously in the same direction
Side windowpane, in this process, pumping light power is very high, and signal laser source power is lower, and pump light is to signal laser source
Play the role of amplification, acceleration, capacitation.
Since windowpane is static, pump light is to the heat effect of windowpane, and after start-up operation, windowpane quickly reaches high temperature
State, and burn phenomenon is generated, internal structure is damaged, service life is reduced, the quality after reducing transmissivity and light transmission.
In order to solve problem above, usual practice is to increase working media flow velocity in industry, raising heat exchange rate, but this
One method can be such that working media turbulent extent increases, and flow uniformity reduces, and flow boundary layer thickeies, and sky is generated in runner
A series of problems, such as changing vacuole, the quality after reducing transmissivity and light transmission.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of laser amplifiers, by injecting coolant liquid pair
Windowpane is cooled down, and heat transfer rate is greatly improved, and is promoted cooling effect, is placed windowpane in cooling chamber and arrange in a ring, structure
Simply, easy to process.
The present invention achieves the above technical objects by the following technical means.
A kind of laser amplifier, including laser amplifier main body, windowpane and sealing gland；The laser amplifier main body
The interior working media runner for being equipped with perforation, the working media of the interior filling flowing of working media runner；The working media runner two
Side is symmetrically arranged with cooling chamber, and notch is equipped between each cooling chamber and working media runner；The windowpane is located at cooling
Intracavitary, windowpane one end sealing is placed in notch, and the windowpane other end is sealed by sealing gland and compressed；It is described
Sealing gland is mounted in laser amplifier main body；It is connected between symmetrical cooling chamber by through-hole；The laser amplifier master
Body is equipped with cooling liquid inlet and cooling liquid outlet, and the cooling liquid inlet is connected to a cooling chamber, the cooling liquid outlet
It is connected to another cooling chamber.
Further, the windowpane axis is vertical with working media runner, the windowpane axis and notch axis coaxle.
Further, the surface roughness that the windowpane is contacted with coolant liquid is greater than R6.3.
Further, in order to which the heat distribution for guaranteeing generation of the pump light on glass window is more uniform, avoid part super
High temperature, the windowpane meet following condition:
1.5d0≤d7≥2.5d0
3d0≤L1≥4d0
d3≥1.2d7
Wherein: d0- pump light source diameter, mm；
d7- the windowpane is placed on diameter or notch diameter in notch, mm；
L1- windowpane the length, mm；
d3- windowpane the outside diameter, mm.
Further, the working media runner includes inlet channel, outlet flow and straight tube runner；The inlet channel is logical
It crosses tapered runner to be connected to straight tube runner, the outlet flow is connected to by tapered runner with straight tube runner；In order to guarantee work
Medium can effectively take away the heat of generation of the pump light on glass window when passing through glass window, play cooling effect, together
When reduce working media and pass through the droop loss generated when laser amplifier, inlet channel, outlet flow and straight tube runner meet
Following condition below:
A≥4.5d0 2
L5≥4d0
L7=L8≥4d0
d8=d9≤4d0
Wherein: d0- pump light source diameter, mm；
A-straight tube flow channel cross-section the product, mm2；
L5- tapered the flow channel length, mm；
L7- inlet channel the length, mm；
L8- outlet flow the length, mm；
d8- inlet channel the diameter, mm；
d9- outlet flow the diameter, mm.
Further, in order to guarantee coolant liquid by cooling liquid inlet, cooling chamber, through-hole, windowpane, cooling liquid outlet
There is preferable cooling effect in the process, and reduce the flow losses during coolant flow, the cooling chamber, through-hole and
Windowpane meets following following condition:
d4≥1.8d3
d1=d5≥0.8(d4-d3)
d2≥0.4(d4-d3)
Wherein: d3- windowpane the outside diameter, mm；
d1The diameter of-the cooling liquid inlet, mm；
d2The diameter of-the through-hole, mm；
d4The diameter of-the cooling chamber, mm；
d5The diameter of-the cooling liquid outlet, mm.
Further, the flow of working media is Q in the working media runner1, work to meet in working media runner
Medium can not only guarantee that pump light had the activation of more efficient to signal laser source, but also it can be guaranteed to windowpane inner wall
Cooling effect, Q1Meet following relationship:
Q1≥A×3.6×10-3
Wherein:
ρ1The density of-the working media, kg/m3；
P1- working media the saturated vapour pressure, Pa；
d0- pump light source diameter, mm；
The cross-sectional area of the A-straight tube runner, mm2；
L5- tapered the flow channel length, mm；
L8- outlet flow the length, mm；
Q1The flow of-the working media, m3/h.
Further, the coolant rate of the cooling liquid inlet is Q2, to meet coolant liquid to the cooling effect of windowpane,
Q2Meet following relationship:
Wherein:
K1Absorptivity of-the glazing materials to pump light；
K2Temperature when the-coolant liquid enters, K；
P2The power of-pump light source incidence, W；
C1The specific heat capacity of-the coolant liquid, J/kgk；
λ1The thermal coefficient of-the glazing materials, W/mk；
d1The diameter of-the cooling liquid inlet, mm.
The beneficial effects of the present invention are:
1. laser amplifier of the present invention, laser amplifier main body is interior to be arranged coolant flow channel, passes through and inject coolant liquid
Windowpane is cooled down, heat transfer rate is greatly improved, promotes cooling effect.
2. the face of laser amplifier of the present invention, windowpane and coolant liquid contact takes frosted to handle, increase glass
Window and coolant liquid contact area improve heat transfer rate, promote cooling effect, and the relationship that relative dimensions should meet has been determined.
3. laser amplifier of the present invention, symmetrical two cooling chambers are connected by through-hole, cooling liquid inlet and cold
But liquid outlet and the interior windowpane of placing of cooling chamber arrange that structure is simple in a ring, easy to process, and have been determined that relative dimensions should expire
The relationship of foot.
4. laser amplifier of the present invention, the inlet channel is connected to by tapered runner with straight tube runner, described
Outlet flow is connected to by tapered runner with straight tube runner, is effectively reduced laser amplifier overall dimensions, is greatly improved laser and put
Local velocity in big device working media runner, and the relationship that relative dimensions should meet has been determined.
5. laser amplifier of the present invention, in order to guarantee that pump light there is the activation of more efficient to make signal laser source
With, and meet the cooling effect of windowpane inner wall, it is determined that the flow Q of working media1The range that should meet.
6. laser amplifier of the present invention, in order to guarantee coolant liquid to the cooling effect of windowpane, it is determined that cooling
The flow Q of liquid2The range that should meet.
Detailed description of the invention
Fig. 1 is laser amplifier main view semi-cutaway of the present invention.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is laser amplifier left view of the present invention.
Fig. 4 is the cross-sectional view of Fig. 3.
In figure:
1- laser amplifier main body；2- working media runner；3- cooling chamber；4- cooling liquid inlet；5- cooling liquid outlet；6-
Windowpane；7- sealing gland；8- through-hole.
Specific embodiment
Present invention will be further explained with reference to the attached drawings and specific examples, but protection scope of the present invention is simultaneously
It is without being limited thereto.
As Figure 1-Figure 4, laser amplifier of the present invention, including laser amplifier main body 1, windowpane 6 and close
Sealed cover 7；The working media runner 2 of perforation is equipped in the laser amplifier main body 1, filling flowing in working media runner 2
Working media；2 two sides of working media runner are symmetrically arranged with cooling chamber 3, each cooling chamber 3 and working media runner
It is connected between 2 by notch；Place windowpane 6 in each cooling chamber 3,6 one end of windowpane sealing be placed in notch from
And block the connection of cooling chamber 3 Yu working media runner 2；6 other end of windowpane is compressed by the sealing of sealing gland 7；Institute
Stating 6 axis of windowpane can be vertical with working media runner 2,6 axis of windowpane and notch axis coaxle.Due to cooling chamber 3
It inside placed windowpane 6, cooling chamber 3 is in a ring；The sealing gland 7 is mounted in laser amplifier main body 1；It is symmetrical cooling
It is connected between chamber 3 by through-hole 8；The laser amplifier main body 1 is equipped with cooling liquid inlet 4 and cooling liquid outlet 5, described cold
But liquid import 4 is connected to a cooling chamber 3, and the cooling liquid outlet 5 is connected to another cooling chamber 3, is led in cooling liquid inlet 4
Enter cooling medium.Loophole is equipped at 7 center of sealing gland.As shown in Fig. 2, working principle are as follows: the sealing gland 7 from left side is saturating
Unthreaded hole is according to v1The pump light of higher-wattage and the high-quality signal laser source of lower-wattage are launched in direction with one heart, and normal direction is injected
In the working media of flowing, under the medium of working media, signal laser source by pump light excites capacitation and from v2It projects in direction
Finished product laser with very high energies.
Heat distribution in order to guarantee generation of the pump light on glass window is more uniform, avoids local superhigh temperature, institute
It states the surface roughness that windowpane 6 is contacted with coolant liquid and is greater than R6.3, the windowpane 6 meets following condition:
1.5d0≤d7≥2.5d0
3d0≤L1≥4d0
d3≥1.2d7
Wherein: d0- pump light source diameter, mm；
d7- the windowpane 6 is placed on diameter or notch diameter in notch, mm；
L1- 6 length of windowpane, mm；
d3- 6 outside diameter of windowpane, mm.
The working media runner 2 includes inlet channel, outlet flow and straight tube runner；The inlet channel passes through tapered
Runner is connected to straight tube runner, and the outlet flow is connected to by tapered runner with straight tube runner；In order to guarantee that working media exists
By can effectively take away the heat of generation of the pump light on glass window when windowpane 6, cooling effect is played, while reducing work
The droop loss generated when passing through laser amplifier as medium, inlet channel, outlet flow and straight tube runner meet following following
Condition:
A≥4.5d0 2
L5≥4d0
L7=L8≥4d0
d8=d9≤4d0
Wherein: d0- pump light source diameter, mm；
A-straight tube flow channel cross-section the product, mm2；
L5- tapered the flow channel length, mm；
L7- inlet channel the length, mm；
L8- outlet flow the length, mm；
d8- inlet channel the diameter, mm；
d9- outlet flow the diameter, mm.
In order to guarantee coolant liquid in the mistake by cooling liquid inlet 4, cooling chamber 3, through-hole 8, windowpane 6, cooling liquid outlet 5
There is preferable cooling effect in journey, and reduce the flow losses during coolant flow, the cooling chamber 3,8 and of through-hole
Windowpane 6 meets following following condition:
d4≥1.8d3
d1=d5≥0.8(d4-d3)
d2≥0.4(d4-d3)
Wherein: d3- 6 outside diameter of windowpane, mm；
d1The diameter of-the cooling liquid inlet 4, mm；
d2The diameter of-the through-hole 8, mm；
d4The diameter of-the cooling chamber 3, mm；
d5The diameter of-the cooling liquid outlet 5, mm.
The flow of working media is Q in the working media runner 21, to have met in working media runner 2 working media both
Can guarantee pump light has the activation of more efficient to signal laser source, and it can be guaranteed to the cold of 6 inner wall of windowpane
But effect, Q1Meet following relationship:
Q1≥A×3.6×10-3
Wherein:
ρ1The density of-the working media, kg/m3；
P1- working media the saturated vapour pressure, Pa；
d0- pump light source diameter, mm；
The cross-sectional area of the A-straight tube runner, mm2；
L5- tapered the flow channel length, mm；
L8- outlet flow the length, mm；
Q1The flow of-the working media, m3/h.
The coolant rate of the cooling liquid inlet 4 is Q2, to meet coolant liquid to the cooling effect of windowpane 6, Q2Meet
Following relationship:
Wherein:
K1Absorptivity of -6 material of windowpane to pump light；
K2Temperature when the-coolant liquid enters, K；
P2The power of-pump light source incidence, W；
C1The specific heat capacity of-the coolant liquid, J/kgk；
λ1The thermal coefficient of -6 material of windowpane, W/mk；
d1The diameter of-the cooling liquid inlet 4, mm.
By taking the job requirements such as some signal laser source and working media as an example, related data is as follows: pump light source diameter
d0=2mm；The density p of working media1=850kg/m3；Working media saturated vapour pressure P1=4000Pa；6 material of windowpane
To the absorptivity K of pump light1=0.8；Temperature K when coolant liquid enters2=297K；The power P of pump light source incidence2=500W；
The specific heat capacity C of coolant liquid1=4200J/kgk；The thermal coefficient λ of 6 material of windowpane1=0.75W/mk；
The relative dimensions determination of windowpane 6 is as follows:
d7=4mm
L1=8mm
d3=4.8mm
The determination of 2 relative dimensions of working media runner is as follows:
A=18mm
L5=10mm
L7=L8=12mm
d8=d9=8mm
The correlation of the cooling liquid inlet 4 of laser amplifier main body 1, cooling chamber 3, through-hole 8, windowpane 6, cooling liquid outlet 5
Size determination is as follows:
d4=10mm
d1=d5=5mm
d2=2.5mm
Working media flow Q1Range it is as follows:
0.0648≤Q1≤0.1727
The flow Q of coolant liquid2Range it is as follows:
Q2≥0.7399m3/h
The embodiment is a preferred embodiment of the present invention, but present invention is not limited to the embodiments described above, not
In the case where substantive content of the invention, any conspicuous improvement that those skilled in the art can make, replacement
Or modification all belongs to the scope of protection of the present invention.
Claims (7)
1. a kind of laser amplifier, which is characterized in that including laser amplifier main body (1), windowpane (6) and sealing gland (7)；
The working media runner (2) of perforation is equipped in the laser amplifier main body (1), filling flowing in working media runner (2)
Working media；Working media runner (2) two sides are symmetrically arranged with cooling chamber (3), each cooling chamber (3) and working media
Notch is equipped between runner (2)；Windowpane (6) are placed in each cooling chamber (3), windowpane (6) one end sealing is put
It sets in notch, windowpane (6) other end is compressed by sealing gland (7) sealing；The sealing gland (7) is mounted on sharp
In image intensifer main body (1)；It is connected between symmetrical cooling chamber (3) by through-hole (8)；On the laser amplifier main body (1)
Equipped with cooling liquid inlet (4) and cooling liquid outlet (5), the cooling liquid inlet (4) is connected to a cooling chamber (3), described cold
But liquid outlet (5) is connected to another cooling chamber (3)；
The working media runner (2) includes inlet channel, outlet flow and straight tube runner；The inlet channel passes through convergent current
Road is connected to straight tube runner, and the outlet flow is connected to by tapered runner with straight tube runner；
The flow of the interior working media of the working media runner (2) is Q1, Q1Meet following relationship:
Q1≥A×3.6×10-3
Wherein:
ρ1The density of-the working media, kg/m3；
P1- working media the saturated vapour pressure, Pa；
d0- pump light source diameter, mm；
The cross-sectional area of the A-straight tube runner, mm2；
L5- tapered the flow channel length, mm；
L8- outlet flow the length, mm；
d8- inlet channel the diameter, mm；
Q1The flow of-the working media, m3/h.
2. laser amplifier according to claim 1, which is characterized in that windowpane (6) axis and working media stream
Road (2) vertically, windowpane (6) axis and notch axis coaxle.
3. laser amplifier according to claim 1, which is characterized in that the face that the windowpane (6) contacts with coolant liquid
Roughness is greater than R6.3.
4. laser amplifier according to claim 1, which is characterized in that the windowpane (6) meets following condition:
1.5d0≤d7≥2.5d0
3d0≤L1≥4d0
d3≥1.2d7
Wherein: d0- pump light source diameter, mm；
d7- the windowpane (6) is placed on diameter or notch diameter in notch, mm；
L1- windowpane (6) length, mm；
d3- windowpane (6) outside diameter, mm.
5. laser amplifier according to claim 1, which is characterized in that the inlet channel, outlet flow and straight tube stream
Road meets following following condition:
A≥4.5d0 2
L5≥4d0
L7=L8≥4d0
d8=d9≤4d0
Wherein: d0- pump light source diameter, mm；
A-straight tube flow channel cross-section the product, mm2；
L5- tapered the flow channel length, mm；
L7- inlet channel the length, mm；
L8- outlet flow the length, mm；
d8- inlet channel the diameter, mm；
d9- outlet flow the diameter, mm.
6. laser amplifier according to claim 1, which is characterized in that the cooling chamber (3), through-hole (8) and windowpane
(6) meet following following condition:
d4≥1.8d3
d1=d5≥0.8(d4-d3)
d2≥0.4(d4-d3)
Wherein: d3- windowpane (6) outside diameter, mm；
d1The diameter of-the cooling liquid inlet (4), mm；
d2The diameter of-the through-hole (8), mm；
d4The diameter of-the cooling chamber (3), mm；
d5The diameter of-the cooling liquid outlet (5), mm.
7. laser amplifier according to claim 1, which is characterized in that the coolant rate of the cooling liquid inlet (4)
For Q2, Q2Meet following relationship:
Wherein:
K1Absorptivity of-windowpane (6) material to pump light；
K2Temperature when the-coolant liquid enters, K；
P2The power of-pump light source incidence, W；
C1The specific heat capacity of-the coolant liquid, J/kgk；
λ1The thermal coefficient of-windowpane (6) material, W/mk；
d1The diameter of-the cooling liquid inlet (4), mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735336.0A CN109066276B (en) | 2018-07-06 | 2018-07-06 | A kind of laser amplifier |
| PCT/CN2018/101618 WO2020006824A1 (en) | 2018-07-06 | 2018-08-22 | Laser amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810735336.0A CN109066276B (en) | 2018-07-06 | 2018-07-06 | A kind of laser amplifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109066276A CN109066276A (en) | 2018-12-21 |
| CN109066276B true CN109066276B (en) | 2019-10-01 |
Family
ID=64818934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810735336.0A Active CN109066276B (en) | 2018-07-06 | 2018-07-06 | A kind of laser amplifier |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109066276B (en) |
| WO (1) | WO2020006824A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100527B (en) * | 1985-04-01 | 1988-06-29 | 上海特种灯泡厂 | Dye laser for ophthalmic therapy |
| US7212558B2 (en) * | 2004-04-30 | 2007-05-01 | The Regents Of The University Of California | Liquid heat capacity lasers |
| CN201805138U (en) * | 2010-08-31 | 2011-04-20 | 武汉嘉铭激光有限公司 | Cavity mirror cooling device for resonant cavity of high-power solid laser |
| CN105762642A (en) * | 2015-11-10 | 2016-07-13 | 天津工业大学 | Method for fixing high-flow-velocity laser dye cell optical window sheet |
| CN106936056B (en) * | 2017-04-26 | 2020-02-14 | 北京航天控制仪器研究所 | Thermal capacity cooling liquid laser |
-
2018
- 2018-07-06 CN CN201810735336.0A patent/CN109066276B/en active Active
- 2018-08-22 WO PCT/CN2018/101618 patent/WO2020006824A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN109066276A (en) | 2018-12-21 |
| WO2020006824A1 (en) | 2020-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202066747U (en) | Chuck device of thermal simulator | |
| AR021880A1 (en) | A PROCESS FOR THE LICUATION OF A NATURAL GAS CURRENT TO PRODUCE A LIQUID PRODUCT | |
| CN206946407U (en) | A kind of computer water-cooling radiating device | |
| CN109066276B (en) | A kind of laser amplifier | |
| CN108601289A (en) | A kind of micro-channel heat sink with special flow dividing structure | |
| CN106735010A (en) | A kind of chill roll prepared suitable for Amorphous Wide Ribbon | |
| US7433376B1 (en) | Zig-zag laser with improved liquid cooling | |
| CN104362495B (en) | A kind of slab laser amplifier and its laser output method | |
| CN213280186U (en) | High-frequency resonance cavity arranged in cooling water channel | |
| CN207819168U (en) | A kind of cooling device and its carbon dioxide laser conducive to gas discharge | |
| JPS6139519A (en) | Plasma processing device | |
| CN210174350U (en) | Closed heating equipment for laminating machine | |
| CN106641707A (en) | Efficient self-pressurized metering liquid nitrogen pump | |
| CN111952825A (en) | Gain medium cooling device of laser | |
| CN208466852U (en) | Cooling roll in one kind | |
| CN106647983A (en) | Cooling system | |
| CN101854019A (en) | Cooling device of laser device coaxial unstable cavity output window | |
| CN219079409U (en) | Coal chemical industry technology nozzle cooling device | |
| CN107883804A (en) | A kind of cylinder water cooling component | |
| CN217433018U (en) | Novel indium strip solidification forming device | |
| CN205138247U (en) | Nitrogen gas thermal cycle heat sink | |
| CN205570710U (en) | Multiple cooling tube's aluminium foil coating line | |
| CN217545214U (en) | Cooling device for laser pumping module | |
| CN108899747A (en) | A kind of light supply apparatus based on fluorescent crystal pumping optical waveguide | |
| CN210379753U (en) | High heat dissipation type optic fibre water-cooling board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |