CN1741327A - Diffuse reflection light-gathering cavity - Google Patents
Diffuse reflection light-gathering cavity Download PDFInfo
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- CN1741327A CN1741327A CN 200510029674 CN200510029674A CN1741327A CN 1741327 A CN1741327 A CN 1741327A CN 200510029674 CN200510029674 CN 200510029674 CN 200510029674 A CN200510029674 A CN 200510029674A CN 1741327 A CN1741327 A CN 1741327A
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- 239000011521 glass Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 21
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 11
- 238000002310 reflectometry Methods 0.000 claims abstract description 8
- 229910052779 Neodymium Inorganic materials 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 abstract description 7
- 230000003287 optical effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Abstract
一种用于高功率放大级光路调整中的大口径钕玻璃棒状放大器中的漫反射聚光腔，其特征在于该聚光腔是一玻璃管置于一金属管内，该玻璃管与所述的金属管之间的均匀间隙中均匀且密实地填充有高反射率的BaSO4粉末，两定位块分别置于所述的玻璃管与金属管形成的间隙的两端并与所述的金属管的端面相固定。本发明漫反射聚光腔具有结构简单，工艺性较好，制造方便的特点，大大降低了钕玻璃棒状放大器中的聚光腔的制造成本，提高了光束反射效率及光束均匀性，同时提高了钕玻璃激光棒的增益效果。
A diffuse reflection focusing cavity in a large-caliber neodymium glass rod amplifier used in the optical path adjustment of a high-power amplifier stage is characterized in that the focusing cavity is a glass tube placed in a metal tube, the uniform gap between the glass tube and the metal tube is uniformly and densely filled with high-reflectivity BaSO4 powder, and two positioning blocks are respectively placed at the two ends of the gap formed by the glass tube and the metal tube and fixed to the end face of the metal tube. The diffuse reflection focusing cavity of the present invention has the characteristics of simple structure, good processability, and convenient manufacturing, which greatly reduces the manufacturing cost of the focusing cavity in the neodymium glass rod amplifier, improves the light beam reflection efficiency and light beam uniformity, and at the same time improves the gain effect of the neodymium glass laser rod.
Description
技术领域technical field
本发明涉及钕玻璃棒状放大器，特别是一种漫反射聚光腔。主要应用于要求激光光束均匀性好，传输效率高，光束质量高的高功率放大级光路调整中的大口径钕玻璃棒状放大器中。The invention relates to a neodymium glass rod amplifier, in particular to a diffuse reflection light collecting cavity. It is mainly used in the large-aperture neodymium glass rod amplifier in the adjustment of the optical path of the high-power amplification stage that requires good uniformity of the laser beam, high transmission efficiency, and high beam quality.
背景技术Background technique
在高重复率高输出功率的激光器系统中，由于注入激光束的能量增大，激光光束口径变大，要求激光器的通光口径加大，传统使用的大口径镜面反射聚光腔，由于采用几何光学传输原理，在传输过程中易形成“亮点”和“暗点”，从而引起泵浦不均匀性导致热畸变很严重，对光束的传输质量，泵浦的增益影响都很大，且大口径镜面反射聚光腔需采用抛光的梅花瓣状镀银铜片作为反射载体，制作工艺复杂，成本高。In the laser system with high repetition rate and high output power, due to the increase of the energy injected into the laser beam, the aperture of the laser beam becomes larger, and the aperture of the laser beam is required to be enlarged. The principle of optical transmission, it is easy to form "bright spots" and "dark spots" during the transmission process, which will cause pump inhomogeneity and lead to serious thermal distortion, which has a great influence on the transmission quality of the beam and the gain of the pump, and the large aperture The specular reflection concentrating cavity needs to use polished plum petal-shaped silver-plated copper as the reflection carrier, and the manufacturing process is complicated and the cost is high.
发明内容Contents of the invention
本发明要解决的技术问题在于克服上述传统的大口径镜面反射聚光腔的缺点，提供一种漫反射聚光腔，以提高光束的传输质量和能量。The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the traditional large-diameter specular reflection concentrating cavity, and provide a diffuse reflection concentrating cavity to improve the transmission quality and energy of the light beam.
本发明技术解决方案的原理是利用非几何光学传输原理的漫反射特性，采用BaSO4这类高反射率粉末作为光束传输载体，制出漫反射聚光腔，提高光束传输质量和能量。The principle of the technical solution of the present invention is to use the diffuse reflection characteristics of the non-geometric optical transmission principle, and use BaSO 4 and other high-reflectivity powders as the beam transmission carrier to manufacture a diffuse reflection concentrating cavity to improve the quality and energy of beam transmission.
本发明的技术解决方案如下：Technical solution of the present invention is as follows:
一种漫反射聚光腔，其特点是该聚光腔是一玻璃管置于一金属管内，在该玻璃管与所述的金属管之间的均匀间隙中均匀且密实地填充具有高反射率的BaSO4粉末，两定位块分别置于所述的玻璃管与金属管形成的间隙的两端并固定之。A diffuse reflection concentrating cavity, which is characterized in that the concentrating cavity is a glass tube placed in a metal tube, and the uniform gap between the glass tube and the metal tube is uniformly and densely filled with high reflectivity BaSO 4 powder, two positioning blocks are respectively placed at the two ends of the gap formed by the glass tube and the metal tube and fixed.
所述的玻璃管与金属管之的间隙为3～5mm。The gap between the glass tube and the metal tube is 3-5mm.
所述的BaSO4粉末的反射率≥98％。The reflectance of the BaSO 4 powder is ≥98%.
本发明与传统镜面反射聚光腔相比的优点：The advantages of the present invention compared with the traditional specular reflection concentrating cavity:
由于BaSO4粉末纯度高，反射率≥98％，漫射性能好，表面无光泽，对各波长都有同样的高反射率，采用该材料能有效提高光束传输效率和光束均匀性，且该BaSO4粉末属于无毒性材料，对操作人员无害。Due to the high purity of BaSO 4 powder, the reflectivity ≥ 98%, good diffusion performance, matte surface, and the same high reflectivity for each wavelength, the use of this material can effectively improve the beam transmission efficiency and beam uniformity, and the BaSO 4 Powder is a non-toxic material, harmless to operators.
本发明漫反射聚光腔的结构简单，大大降低了钕玻璃棒状放大器中聚光腔的制造成本，工艺性较好，提高了光束反射效率及光束均匀性，同时提高了钕玻璃棒的增益效果。The structure of the diffuse reflection concentrating cavity of the present invention is simple, greatly reduces the manufacturing cost of the concentrating cavity in the neodymium glass rod amplifier, has good manufacturability, improves the beam reflection efficiency and beam uniformity, and simultaneously improves the gain effect of the neodymium glass rod .
本发明尤其适合于制造漫反射大口径聚光腔。The invention is especially suitable for manufacturing diffuse reflection large-diameter light-gathering cavity.
附图说明Description of drawings
图1为本发明实施例漫反射大口径聚光腔的主视全剖示意图Fig. 1 is a front full sectional schematic diagram of a diffuse reflection large-aperture light-collecting cavity according to an embodiment of the present invention
图2为本发明实施例漫反射大口径聚光腔的左视剖视示意图Fig. 2 is a left-view cross-sectional schematic diagram of a diffuse reflection large-aperture light-collecting cavity according to an embodiment of the present invention
图3为本发明实施例漫反射大口径聚光腔的局部剖视示意图Fig. 3 is a partial cross-sectional schematic diagram of a diffuse reflection large-aperture light-collecting cavity according to an embodiment of the present invention
具体实施方式Detailed ways
先请参见图1、图2和图3，由图可见，本发明实施例，漫反射大口径聚光腔1是由两块夹板101将一玻璃管102固定在一金属管103内，该玻璃管102与所述的金属管103之间均匀且密实地填充有高反射率BaSO4粉末104，将定位块105分别置于所述的玻璃管102与金属管103形成的间隙的两端。Referring first to Fig. 1, Fig. 2 and Fig. 3, it can be seen from the figures that in the embodiment of the present invention, the diffuse reflection large-diameter concentrating cavity 1 is to fix a
本实施例中所述的大口径玻璃管102与大口径金属管103之间的间隙为4mm。所述的BaSO4粉末的纯度高，反射率≥98％The gap between the large-
本发明漫反射大口径聚光腔1制造方法是：将大口径玻璃管102置于大口径金属管103内，将定位块105分别置于所述的大口径玻璃管102与大口径金属管103之间的间隙的两端，保证大口径玻璃管102与大口径金属管103形成的间隙两端均为4mm间隙，再将BaSO4粉末用辅助工具将之灌入，保证其均匀密实；为保证密封性能，然后在所述的间隙的两端先用耐高温硅胶703密封牢固，用螺钉106将夹板101固定到所述的大口径金属管103的两端，形成漫反射大口径聚光腔1。The manufacturing method of the diffuse reflection large-diameter concentrating cavity 1 of the present invention is as follows: the large-
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| CN 200510029674 CN1741327A (en) | 2005-09-15 | 2005-09-15 | Diffuse reflection light-gathering cavity |
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| CN 200510029674 CN1741327A (en) | 2005-09-15 | 2005-09-15 | Diffuse reflection light-gathering cavity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414095A (en) * | 2013-08-01 | 2013-11-27 | 中国航空工业集团公司北京航空制造工程研究所 | Laser-gathering cavity for solid laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414095A (en) * | 2013-08-01 | 2013-11-27 | 中国航空工业集团公司北京航空制造工程研究所 | Laser-gathering cavity for solid laser |
| CN103414095B (en) * | 2013-08-01 | 2016-08-10 | 中国航空工业集团公司北京航空制造工程研究所 | A kind of laser pump cavity for solid state laser |
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