CN112992650B - Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp - Google Patents
Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp Download PDFInfo
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- CN112992650B CN112992650B CN202110176370.0A CN202110176370A CN112992650B CN 112992650 B CN112992650 B CN 112992650B CN 202110176370 A CN202110176370 A CN 202110176370A CN 112992650 B CN112992650 B CN 112992650B
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- xenon lamp
- equal
- pump light
- transmission efficiency
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- 229910052724 xenon Inorganic materials 0.000 title claims abstract description 36
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 title abstract description 10
- 239000007788 liquid Substances 0.000 title abstract description 10
- 239000011521 glass Substances 0.000 claims abstract description 16
- 239000000110 cooling liquid Substances 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 4
- 238000002310 reflectometry Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- UDIQNVMCHWHTBT-UHFFFAOYSA-N 5-phenylcyclohexa-2,4-dien-1-one Chemical compound C1(=CC=CC=C1)C1=CC=CC(C1)=O UDIQNVMCHWHTBT-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/025—Associated optical elements
Landscapes
- Lasers (AREA)
Abstract
The utility model provides a promote structure of integral type liquid cooling xenon lamp pump light transmission efficiency, includes coolant liquid, baffle glass and gain medium, its characterized in that still includes a plurality of reflection strips that are triangular prism, and the number N=M+1 of reflection strip, wherein, M is xenon lamp number, the reflection strip is isosceles triangle's triangular prism about the bottom surface is, 1mm is less than or equal to d1 is less than or equal to 10mm of reflection strip and baffle glass, 1mm is less than or equal to d2 is less than or equal to 5mm of reflection strip and xenon lamp fluorescent tube outer wall normal distance. According to the invention, the triangular prism-shaped reflection strip immersed in the cooling liquid is adopted to compress the light transmission divergence angle of the xenon lamp, so that the efficiency of penetrating the barrier glass by the xenon lamp pump light is improved, the utilization rate of the integrated liquid cooling xenon lamp pump light is greatly improved, the supply of energy is reduced, and the transmission efficiency of light from the xenon lamp to the surface of the gain medium is improved.
Description
Technical Field
The invention relates to a liquid-cooled xenon lamp, in particular to a structure for improving pump light transmission efficiency of an integrated liquid-cooled xenon lamp in a repetition frequency amplifier.
Background
Xenon lamps are widely used as pump sources of laser amplifiers, especially sheet-like laser amplifiers, due to their advantages of broad emission spectrum, high cost performance, etc. However, since the absorption spectrum of the gain medium is relatively narrow, the pump light is mostly dissipated in the form of heat, which severely limits the repetition frequency operation of the chip amplifier. In order to realize the sheet-shaped amplifier, especially the repeated frequency output of the large-caliber (the diameter is more than or equal to 100 mm) sheet-shaped amplifier, the xenon lamp generally adopts an independent liquid cooling structure, and particularly, a water jacket pipe is independently added outside each xenon lamp, and cooling liquid flows in a gap between the water jacket pipe and the wall of the xenon lamp for cooling. On the basis of keeping the xenon lamp detachable independently, in order to reduce the sealing installation requirement and simplify the structure, the inventor previously invents an integrated xenon lamp liquid cooling structure (invention patent number: CN 201811323474.4), but because pump light passes through cooling liquid (refractive index n 1), baffle glass (refractive index n 2) and air (refractive index n 3) in sequence and can enter a gain medium, and n3 is less than n1 and less than n2, part of pump light is reflected back after reaching the surface of the baffle glass, and cannot pass through the baffle glass to enter the air side, and finally the pump light transmission efficiency is lower.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a structure for improving the pump light transmission efficiency of an integrated liquid-cooled xenon lamp, which comprises the following steps:
the structure for improving the pump light transmission efficiency of the integrated liquid-cooled xenon lamp comprises cooling liquid, partition glass and a gain medium, and is characterized by further comprising a plurality of triangular prism-shaped reflecting strips, wherein the number of the reflecting strips is N=M+1, and M is the number of the xenon lamps;
each reflecting strip is soaked in cooling liquid and is axially distributed along the center of each xenon lamp, the upper bottom surface and the lower bottom surface of each reflecting strip are isosceles triangles, the bottom edges of the isosceles triangles of the upper bottom surface are collinear, and the bottom edges of the isosceles triangles of the lower bottom surface are collinear.
Each reflective strip can be independently mounted on the flat reflector or can be integrally processed with the flat reflector.
Compared with the prior art, the invention has the advantages that:
by adding the reflecting strips on the two sides of the integrated liquid cooling xenon lamp, the divergence angle of the pump light of the xenon lamp is compressed, the incidence angle of the pump light passing through the partition glass is reduced, the transmission efficiency of the pump light of the xenon lamp is greatly improved, and the energy is saved.
Drawings
Fig. 1 is a schematic diagram of a structure for improving pump light transmission efficiency of an integrated liquid-cooled xenon lamp according to the present invention, wherein a is a schematic structure diagram, and b is a partial enlarged view of a.
1-flat reflector, 2-reflection strip, 3-xenon lamp, 4-cooling liquid, 5-gain medium and 6-partition glass.
Fig. 2 is a performance test light path diagram of the present embodiment.
Detailed Description
The present invention will be described in detail with reference to examples, but the scope of the present invention is not limited to the examples.
Examples
Referring to fig. 1, fig. 1 is a schematic structural diagram of an integrated liquid cooling xenon lamp pump light transmission efficiency improving method, as shown in the drawing, the structure for improving the pump light transmission efficiency of the integrated liquid cooling xenon lamp includes a plurality of reflective strips 2, the number N of the reflective strips 2 is 16 (wherein the number m=15 of the xenon lamps and the center distance is 15 mm), the upper bottom surface and the lower bottom surface of the reflective strips 2 are isosceles triangles with the bottom side length of 6mm and the center height of 16mm, the total length is 200mm, the reflective strips are immersed in a cooling liquid 4, the distance d1 between the reflective strips 2 and a separator glass 6 is 1mm, the normal distance d2 between the reflective strips 2 and the outer wall of the xenon lamp 3 is 1mm, the outer surfaces of the reflective strips 2 are plated with high reflective films (silver+silicon dioxide protective films), the reflectivity of the high reflective films in the 400-1100nm wave bands is between 85% -95%, the reflective strips 2 are fixedly mounted with a flat reflector through screws, the bottom sides of the isosceles triangles of the upper bottom surface are collinear, and the bottom sides of the isosceles triangles of the lower bottom surface are collinear.
The gain medium 5 is neodymium glass, tracePro software is adopted for carrying out ray trace display, pump light starts from the xenon lamp 3, and the transmission efficiency of the pump light reaching the gain medium 5 (neodymium glass) through the distilled water 4 and the baffle glass 6 is improved by 17.3% compared with that of the gain medium (neodymium glass) when the reflecting strip 2 is not used (only the reflector 1). Meanwhile, the gain capacity of the repetition frequency sheet amplifier of the pumping transmission structure is tested by adopting the figure 2, and the test result shows that the gain coefficient of the small signal is improved to 4.6/m from the original 4.1/m (only the flat plate reflector 1) under certain xenon lamp pumping energy after the reflecting strip 2 is used, and the amplification is obvious.
Claims (2)
1. The structure for improving the pump light transmission efficiency of the integrated liquid-cooled xenon lamp comprises cooling liquid, partition glass and a gain medium, and is characterized by further comprising a plurality of triangular prism-shaped reflecting strips, wherein the number of the reflecting strips is N=M+1, and M is the number of the xenon lamps;
each reflecting strip is soaked in cooling liquid and is axially distributed along the center of each xenon lamp, the upper bottom surface and the lower bottom surface of each reflecting strip are isosceles triangles, the bottom edges of the isosceles triangles of the upper bottom surface are collinear, and the bottom edges of the isosceles triangles of the lower bottom surface are collinear;
the distance d1 between the reflecting strip and the baffle glass is more than or equal to 1mm and less than or equal to 10mm;
the normal distance between the reflecting strip and the outer wall of the xenon lamp tube is more than or equal to 1mm and less than or equal to 2 and less than or equal to 5mm.
2. The structure for improving the pump light transmission efficiency of the integrated liquid-cooled xenon lamp according to claim 1, wherein the outer surfaces of the reflecting strips are coated with reflecting films, the reflectivity is more than or equal to 85%, and the wave band is 400-1100 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176370.0A CN112992650B (en) | 2021-02-09 | 2021-02-09 | Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110176370.0A CN112992650B (en) | 2021-02-09 | 2021-02-09 | Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112992650A CN112992650A (en) | 2021-06-18 |
| CN112992650B true CN112992650B (en) | 2024-04-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110176370.0A Active CN112992650B (en) | 2021-02-09 | 2021-02-09 | Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp |
Country Status (1)
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| CN (1) | CN112992650B (en) |
Citations (12)
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| GB1279161A (en) * | 1968-08-27 | 1972-06-28 | Gen Electric | Face-pumped laser device |
| US4697271A (en) * | 1984-09-29 | 1987-09-29 | Hoya Corporation | Solid-state laser device capable of effectively exciting a plurality of slab-shaped laser media |
| US6373866B1 (en) * | 2000-01-26 | 2002-04-16 | Lumenis Inc. | Solid-state laser with composite prismatic gain-region |
| JP2004178546A (en) * | 2002-10-01 | 2004-06-24 | Dainippon Printing Co Ltd | Authenticity determinant unit |
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| CN205159771U (en) * | 2015-10-29 | 2016-04-13 | 中国工程物理研究院激光聚变研究中心 | Slice laser amplifier cooling device |
| CN106785858A (en) * | 2017-01-23 | 2017-05-31 | 中国科学院上海光学精密机械研究所 | Lifting disk amplifier in xenon lamp to gain medium facet transmission efficiency method |
| CN107270242A (en) * | 2017-07-21 | 2017-10-20 | 中国科学院上海光学精密机械研究所 | Lift the amplifier architecture of xenon lamp transmission efficiency and distributing homogeneity |
| CN109346912A (en) * | 2018-11-22 | 2019-02-15 | 中国工程物理研究院激光聚变研究中心 | A kind of disk amplifier pumping cavity configuration |
| CN109411997A (en) * | 2018-11-08 | 2019-03-01 | 中国科学院上海光学精密机械研究所 | The cooling stacked repetition rate disk amplifier of xenon flash lamp pumping liquid |
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2021
- 2021-02-09 CN CN202110176370.0A patent/CN112992650B/en active Active
Patent Citations (12)
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|---|---|---|---|---|
| GB1279161A (en) * | 1968-08-27 | 1972-06-28 | Gen Electric | Face-pumped laser device |
| US3633126A (en) * | 1969-04-17 | 1972-01-04 | Gen Electric | Multiple internal reflection face-pumped laser |
| FR2096648A1 (en) * | 1970-04-17 | 1972-02-25 | Gen Electric | |
| US4697271A (en) * | 1984-09-29 | 1987-09-29 | Hoya Corporation | Solid-state laser device capable of effectively exciting a plurality of slab-shaped laser media |
| US6373866B1 (en) * | 2000-01-26 | 2002-04-16 | Lumenis Inc. | Solid-state laser with composite prismatic gain-region |
| JP2004178546A (en) * | 2002-10-01 | 2004-06-24 | Dainippon Printing Co Ltd | Authenticity determinant unit |
| WO2011037308A1 (en) * | 2009-09-25 | 2011-03-31 | 서강대학교 산학협력단 | Prism structured laser |
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| CN109411997A (en) * | 2018-11-08 | 2019-03-01 | 中国科学院上海光学精密机械研究所 | The cooling stacked repetition rate disk amplifier of xenon flash lamp pumping liquid |
| CN109346912A (en) * | 2018-11-22 | 2019-02-15 | 中国工程物理研究院激光聚变研究中心 | A kind of disk amplifier pumping cavity configuration |
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| Publication number | Publication date |
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| CN112992650A (en) | 2021-06-18 |
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