CN112992650A - Structure for improving pumping light transmission efficiency of integrated liquid-cooled xenon lamp - Google Patents
Structure for improving pumping light transmission efficiency of integrated liquid-cooled xenon lamp Download PDFInfo
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- CN112992650A CN112992650A CN202110176370.0A CN202110176370A CN112992650A CN 112992650 A CN112992650 A CN 112992650A CN 202110176370 A CN202110176370 A CN 202110176370A CN 112992650 A CN112992650 A CN 112992650A
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- Prior art keywords
- xenon lamp
- transmission efficiency
- reflection
- pumping light
- equal
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- 229910052724 xenon Inorganic materials 0.000 title claims abstract description 38
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000005086 pumping Methods 0.000 title claims abstract description 19
- 238000005192 partition Methods 0.000 claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 10
- 239000000110 cooling liquid Substances 0.000 claims abstract description 9
- 239000005357 flat glass Substances 0.000 claims abstract description 5
- 238000002310 reflectometry Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 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
- 238000010521 absorption reaction 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
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000007789 sealing Methods 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
Images
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
Abstract
The utility model provides a promote structure of integral type liquid cooling xenon lamp pumping 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 shape, and the figure N of reflection strip is M +1, and wherein M is xenon lamp figure, the reflection strip is isosceles triangle's triangular prism about for the bottom surface, the distance 1mm of reflection strip and baffle glass is less than or equal to d1 and is less than or equal to 10mm, reflection strip and xenon lamp tube outer wall normal distance 1mm is less than or equal to d2 and is less than or equal to 5 mm. According to the invention, the triangular prism-shaped reflection strip soaked in the cooling liquid is adopted to compress the xenon lamp light transmission divergence angle, so that the efficiency of the xenon lamp pumping light penetrating through the partition plate glass is improved, the utilization rate of the integrated liquid cooling xenon lamp pumping light is greatly improved, the energy supply 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 the pumping light transmission efficiency of an integrated liquid-cooled xenon lamp in a repetition frequency amplifier.
Background
The xenon lamp is widely used for a pumping source of a laser amplifier, in particular to a sheet laser amplifier due to the advantages of wide emission spectrum line width, high cost performance and the like. However, because the gain medium has narrow absorption lines, most of the pump light is dissipated in the form of heat, and the repetition frequency operation of the chip amplifier is severely limited. In order to realize the repetitive frequency output of the sheet amplifier, particularly the large-caliber (the diameter is more than or equal to 100mm) sheet amplifier, the xenon lamp generally adopts an independent liquid cooling structure, specifically, a water sleeve is independently added outside each xenon lamp, and cooling liquid flows in a gap between the water sleeve and the tube wall of the xenon lamp for cooling. On the basis of keeping the xenon lamp to be independently disassembled, in order to reduce the sealing installation requirement and simplify the structure, the inventor previously invented an integrated xenon lamp liquid cooling structure (patent No. CN201811323474.4), but because the pumping light sequentially passes through the cooling liquid (refractive index n1), the partition glass (refractive index n2) and the air (refractive index n3) to enter the gain medium, and n3 < n1 < n2, part of the pumping light is reflected after reaching the surface of the partition glass and cannot pass through the partition glass to enter the air side, and finally the pumping light transmission efficiency is low.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a structure for improving the pumping light transmission efficiency of an integrated liquid-cooled xenon lamp, and the solution of the invention is as follows:
a structure for improving the pumping light transmission efficiency of an integrated liquid-cooled xenon lamp comprises cooling liquid, partition plate glass and a gain medium, and is characterized by further comprising a plurality of reflecting strips in a triangular prism shape, wherein the number N of the reflecting strips is equal to M +1, and M is the number of xenon lamps;
each reflection strip is soaked in cooling liquid and axially distributed along the center of each xenon lamp, the upper bottom surface and the lower bottom surface of each reflection strip are isosceles triangles, the bottom edges of the isosceles triangles on the upper bottom surface are collinear, and the bottom edges of the isosceles triangles on the lower bottom surface are collinear.
Each reflecting strip can be independently arranged 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 reflection strips on two sides of the integrated liquid-cooled 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 plate glass is reduced, the transmission efficiency of the pump light of the xenon lamp is greatly improved, and energy is saved.
Drawings
Fig. 1 is a schematic view of a structure for improving the pumping light transmission efficiency of the integrated liquid-cooled xenon lamp according to the present invention, wherein a is a schematic view of the structure, and b is a partially 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 more detail by way of 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 a method for improving pumping light transmission efficiency of an integrated liquid-cooled xenon lamp, as shown in the figure, a structure for improving pumping light transmission efficiency of an integrated liquid-cooled xenon lamp includes a plurality of reflection bars 2, where the number N of the reflection bars 2 is 16 (where the number M of the xenon lamps is 15, and the center distance is 15mm), the upper bottom surface and the lower bottom surface of each reflection bar 2 are isosceles triangles with a bottom edge length of 6mm and a center height of 16mm, the total length is 200mm, the reflection bars are immersed in a cooling liquid 4, the distance d1 between the reflection bars 2 and a partition glass 6 is 1mm, the normal distance d2 between the reflection bars 2 and the outer wall of a xenon lamp 3 lamp tube is 1mm, the outer surface of the reflection bars 2 is plated with a high reflection film (silver + silica protective film), the reflectivity of the high reflection film at a waveband of 400 + 1100nm is between 85% and 95%, the reflection bars 2 are fixedly mounted, the bottom edges of the isosceles triangles on the upper bottom surface are collinear, and the bottom edges of the isosceles triangles on the lower bottom surface are collinear.
The gain medium 5 is made of neodymium glass, ray tracing display is carried out by adopting TracePro software, the transmission efficiency of pump light which starts from the xenon lamp 3 and passes through the distilled water 4 and the partition plate glass 6 to reach the gain medium 5 (the neodymium glass) is relatively improved by 17.3 percent compared with the transmission efficiency when the reflecting strip 2 is not used (only the reflector 1), and the efficiency improvement amplitude is obvious. Meanwhile, a small signal test is carried out on the gain capability of the repetition frequency chip amplifier of the pumping transmission structure by adopting the graph 2, and a test result shows that under certain xenon lamp pumping energy, after the reflection strip 2 is used, the gain coefficient of the small signal is improved to 4.6/m from the original 4.1/m (only the flat reflector 1), and the amplification is obvious.
Claims (4)
1. A structure for improving the pumping light transmission efficiency of an integrated liquid-cooled xenon lamp comprises cooling liquid, partition plate glass and a gain medium, and is characterized by further comprising a plurality of reflecting strips in a triangular prism shape, wherein the number N of the reflecting strips is equal to M +1, and M is the number of xenon lamps;
each reflection strip is soaked in cooling liquid and axially distributed along the center of each xenon lamp, the upper bottom surface and the lower bottom surface of each reflection strip are isosceles triangles, the bottom edges of the isosceles triangles on the upper bottom surface are collinear, and the bottom edges of the isosceles triangles on the lower bottom surface are collinear.
2. The structure for improving the transmission efficiency of the pump light of the integrated liquid-cooled xenon lamp according to claim 1, wherein the distance between the reflecting strip and the partition glass is 1mm or more and d1 or more and 10mm or less.
3. The structure for improving the transmission efficiency of the pump light of the integrated liquid-cooled xenon lamp according to claim 1, wherein the normal distance between the reflection strip and the outer wall of the xenon lamp tube is 1mm or more and d2 or more and 5mm or less.
4. The structure for improving the pumping light transmission efficiency of the integrated liquid-cooled xenon lamp according to claim 1, wherein the outer surfaces of the reflection strips are plated with reflection films, the reflectivity is greater than or equal to 85%, and the wavelength band is 400nm-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 true CN112992650A (en) | 2021-06-18 |
| CN112992650B CN112992650B (en) | 2024-04-12 |
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|---|---|---|---|
| CN202110176370.0A Active CN112992650B (en) | 2021-02-09 | 2021-02-09 | Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp |
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| US6373866B1 (en) * | 2000-01-26 | 2002-04-16 | Lumenis Inc. | Solid-state laser with composite prismatic gain-region |
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2021
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|---|---|---|---|---|
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| 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 |
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| CN112992650B (en) | 2024-04-12 |
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