流道结构对半导体泵浦流动铷蒸气激光器特性影响

潘丽; 何洋; 马利国; 季艳慧; 刘金岱; 陈飞

doi:10.37188/CO.2023-0174

流道结构对半导体泵浦流动铷蒸气激光器特性影响

doi: 10.37188/CO.2023-0174

潘丽^{1, 2,},
何洋²,
马利国³,
季艳慧^{1, 2},
刘金岱^{1, 2},
陈飞^1, ,

1.
中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室, 吉林长春 130033
2.
中国科学院大学, 北京 100049
3.
西南技术物理研究所, 四川成都 610041

基金项目: 国家自然科学基金项目（No. 62005274，No. 61975203）；激光与物质相互作用国家重点实验室自主基础研究课题（No. SKLLIM2012）中国科学院青年创新促进会会员（No. 2022216）

详细信息

作者简介:
潘　丽（1999—），女，重庆人，硕士研究生，2021年于重庆师范大学获得学士学位，主要从事碱金属激光器方面的研究。E-mail：panli21@mails.ucas.ac.cn

陈　飞（1982—），男，河南南阳人，研究员，博士生导师，2011年于哈尔滨工业大学获得博士学位，现工作于中国科学院长春光学精密机械与物理研究所激光与物质相互作用国家重点实验室。主要从事高功率气体激光器及其应用方面的研究。E-mail: feichenny@126.com

中图分类号: TP248
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出版历程
- 收稿日期: 2023-10-08
- 录用日期: 2023-12-05
- 网络出版日期: 2023-12-14

Influence of flow channel structure on characteristics of LD pumped flowing-gas rubidium vapor laser

PAN Li^{1, 2
,},
HE Yang²,
MA Li-guo³,
JI Yan-hui^{1, 2},
LIU Jin-dai^{1, 2},
CHEN Fei^{1
, ,}

1.
State Key Laboratory of Laser Interaction with Matter, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Southwest Institute of Technical Physics, Chengdu 610041, China

Funds: National Natural Science Foundation of China (No. 62005274, No. 61975203); Fund Project of the State Key Laboratory of Laser and Material Interaction (No. SKLLIM2012); Youth Innovation Promotion Association of CAS (No. 2022216)

More Information

Corresponding author: feichenny@126.com

摘要

摘要:
为研究气体流道结构对半导体泵浦流动碱金属蒸气激光器（FDPAL）输出性能的影响，本文结合FDPAL中气体传热、流体力学和激光动力学过程建立了FDPAL理论模型，以侧面泵浦Rb蒸气FDPAL（Rb-FDPAL）为仿真对象，分析气体流动方向、流道横截面积和流道形状等对Rb-FDPAL输出性能的影响。结果表明，采用横流方式，通过提高流道横截面积并将气体流道与蒸气池连接部位设置为砌体结构时，蒸气内涡流得到有效抑制，气体流速增加，蒸气池内热效应更小，Rb-FDPAL的激光输出功率和斜率效率更高，仿真结果与实验相符。
- 高功率激光器 /
- 气体激光器 /
- 碱金属蒸气激光器 /
- 气体流动
Abstract:
In order to study the influence of the gas flow channel structure on the output performance of the flowing-gas diode pumped alkali laser (FDPAL), this article combines the FDPAL theoretical model with the FDPAL mid-gas heat transfer, fluid mechanics, and laser dynamics process using side pumping. Rb vapor FDPAL (Rb-FDPAL) was the simulation object, and the impacts of the gas flow direction, the cross-sectional area, and the runner's shape on the Rb-FDPAL’s output performance were analyzed. The results show that the adoption of the horizontal flow method, by increasing the cross-sectional area of the flow channel and setting a masonry structure as the connection between the gas flow channel and the steam pool, effectively suppresses the vortex in the vapor, increases the gas flow rate, and decreases the thermal effect of the steam pool. Rb-FDPAL's laser output power and slope efficiency are higher, and the simulation results are consistent with the experiment.
- high power laser /
- gas laser /
- DPAL /
- gas flow

HTML全文

图 1 Rb-FDPAL激光动力学过程

Figure 1. Laser dynamic process of Rb-FDPAL

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图 2 半导体侧面泵浦Rb-FDPAL示意图

Figure 2. Schematic diagram of LD side-pumped Rb-FDPAL

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图 3 Rb-FDPAL工作气体的4种流动方向

Figure 3. Four flow directions of circulating gases in Rb-FDPAL

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图 4 不同气体流速时，4种流动方向下激光输出功率随泵浦功率的变化情况

Figure 4. The change of laser output power with pump power under four flow directions at different gas flow rates

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图 5 当泵浦功率为10000 W、进气口初始速度为10 m/s时，4种气体流动方向下的三维温度和流动分布

Figure 5. Three-dimensional temperature and flow distribution under four gas flow directions when pump power is 10000 W and the initial air inlet velocity is 10 m/s

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图 6 当泵浦功率为10000 W、进气口初始速度为10 m/s时，4种气体流动方向下的三维流场分布

Figure 6. Three-dimensional flow field distribution under four gas flow directions obtained when the pump power is 10000 W and the initial air inlet velocity is 10 m/s

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图 7 LD侧面泵浦Rb-FDPAL的3种流道横截面积

Figure 7. 3 three diagrams of channel cross-sectional areas of LD side-pumped Rb-FDPA

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图 8 不同气体流速时，4种流道横截面积下，激光输出功率与泵浦功率之间的关系

Figure 8. The relationship between laser output power and pump power at different gas flow rates and three kinds of cross-sectional areas

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图 10 当泵浦功率为10000 W、进气口初始速度为10 m/s时，3种流道结构下的三维流场分布

Figure 10. Three-dimensional flow field distribution under the cross-sectional area of three flow channels when the pump power is 10000 W and the initial air inlet velocity is 10 m/s

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图 9 当泵浦功率为10000 W、进气口初始速度为10 m/s时，v、vi、vii流道结构的三维温度分布

Figure 9. Three-dimensional temperature distribution under the cross-sectional area of three flow channels when the pump power is 10000 W and the initial air inlet velocity is 10 m/s

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图 11 流道横截面积为81 cm²的vii结构优化过渡区域前后对比图

Figure 11. Comparison of the pre- and post-transition area of the vii structure optimized with the cross-sectional area of 81 cm².

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图 12 不同气体流速时，vii、viii结构下，激光输出功率与泵浦功率之间的关系

Figure 12. The relationship between laser output power and pump power at different gas flow rates under structures vii and viii structures.

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图 13 (a) vii和(b) viii结构下的三维温度分布

Figure 13. Three-dimensional temperature distribution under structures (a) vii and (b) viii structure.

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图 14 (a) vii和(b) viii结构下的三维流场分布

Figure 14. Three-dimensional flow field distribution under structures (a) vii and (b) viii structure.

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图 15 池内平均粒子数浓度随流速变化情况

Figure 15. The average particle number concentration in the cell as a function of flow velocity

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图 16 流道结构为vii结构下增益区长度为5 cm时激光光斑图

Figure 16. The laser spot pattern was observed when the channel structure was vii and the gain zone length was 5 cm

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表 1 缓冲气体的恒压热容、粘滞系数和导热系数^[22]

Table 1. Partial thermophysical properties of buffer gases

缓冲气体	恒压热容 (J·kg⁻¹·K⁻¹)	粘滞系数 (Pa·s)	导热系数 (W·m⁻¹·K⁻¹)
氦	5193.2	3×10⁻⁸×T+1×10⁻⁵	0.0003×T+0.0897
乙烷	3.9×T+600.3	3×10⁻⁸×T+2×10⁻⁵	0.0002×T−0.035

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表 2 循环流动Rb-FDPAL仿真参数

Table 2. Parameters of gas flowing diode pumped cesium laser

参数	值	参数	值
泵浦光中心波长(nm)	780	蒸气池增益长度(cm)	5
泵浦光光斑大小(cm×cm)	5×0.2	反射镜M3反射率	99%
泵浦光线宽(GHz)	30	耦合输出镜M4反射率	50%
缓冲气体压强(atm)	1	流动气体初始温度(K)	393.15

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表 3 不同流道结构的实验结果对比

Table 3. Comparison of the experimental results of different flow channel structures

参数	文献[13]	文献[14]
气体流道结构	vi结构	v结构
泵浦功率(W)	3100	65
泵浦线宽(GHz)	24.8	20
蒸气池温度(K)	-	388
气体流速(${\mathrm{m}} \cdot {{\mathrm{s}}^{ - 1}}$)	>8	1~4
激光输出功率(W)	1500	24
本模型仿真的激光输出功率	1587	27
光-光转换效率	48%	36%
本模型仿真的光-光转换效率	51%	41%

下载: 导出CSV

参考文献(25)

[1]	KRUPKE W F, BEACH R J, KANZ V K, et al. New class of cw high-power diode-pumped alkali lasers (DPALs) (Plenary Paper)[J]. Proceedings of SPIE, 2004, 5448: 7-17. doi: 10.1117/12.547954
[2]	KRUPKE W F. Diode pumped alkali lasers (DPALs)—A review (rev1)[J]. Progress in Quantum Electronics, 2012, 36(1): 4-28. doi: 10.1016/j.pquantelec.2011.09.001
[3]	季艳慧, 何洋, 万浩华, 等. 高功率循环流动型半导体泵浦碱金属蒸汽激光器研究进展(特邀)[J]. 红外与激光工程,2020,49(12):20201080. doi: 10.3788/IRLA20201080 JI Y H, HE Y, WAN H H, et al. Research progress on the high power flowing-gas circulation diode-pumped alkali vapor laser (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201080. (in Chinese). doi: 10.3788/IRLA20201080
[4]	陈毅, 孙俊杰, 于晶华, 等. 大能量碟片激光多通放大器腔体设计研究综述[J]. 中国光学(中英文),2023,16(5):996-1009. doi: 10.37188/CO.2023-0009 CHEN Y, SUN J J, YU J H, et al. Review of the cavity-design of high-energy thin-disk laser multi-pass amplifiers[J]. Chinese Optics, 2023, 16(5): 996-1009. (in Chinese). doi: 10.37188/CO.2023-0009
[5]	张世达, 耿乙迦. 碲化铋倏逝场锁模器件的超快光纤激光器[J]. 中国光学,2022,15(3):433-442. doi: 10.37188/CO.2021-0216 ZHANG SH D, GENG Y J. Ultrafast fiber laser based on bismuth telluride evanescent field mode-locked device[J]. Chinese Optics, 2022, 15(3): 433-442. (in Chinese). doi: 10.37188/CO.2021-0216
[6]	徐飞, 潘其坤, 陈飞, 等. 中红外Fe²⁺: ZnSe激光器研究进展[J]. 中国光学,2021,14(3):458-469. doi: 10.37188/CO.2020-0180 XU F, PAN Q K, CHEN F, et al. Development progress of Fe²⁺: ZnSe lasers[J]. Chinese Optics, 2021, 14(3): 458-469. (in Chinese). doi: 10.37188/CO.2020-0180
[7]	ZHDANOV B V, EHRENREICH T, KNIZE R J. Highly efficient optically pumped cesium vapor laser[J]. Optics Communications, 2006, 260(2): 696-698. doi: 10.1016/j.optcom.2005.11.042
[8]	BOGACHEV A V, GARANIN S G, DUDOV A M, et al. Diode-pumped caesium vapour laser with closed-cycle laser-active medium circulation[J]. Quantum Electronics, 2012, 42(2): 95-98. doi: 10.1070/QE2012v042n02ABEH014734
[9]	GAO F, CHEN F, XIE J J, et al. Review on diode-pumped alkali vapor laser[J]. Optik, 2013, 124(20): 4353-4358. doi: 10.1016/j.ijleo.2013.01.061
[10]	ZHDANOV B V, ROTONDARO M D, SHAFFER M K, et al. Power degradation due to thermal effects in Potassium Diode Pumped Alkali Laser[J]. Optics Communications, 2015, 341: 97-100. doi: 10.1016/j.optcom.2014.12.021
[11]	WAICHMAN K, BARMASHENKO B D, ROSENWAKS S. Laser power, cell temperature, and beam quality dependence on cell length of static Cs DPAL[J]. Journal of the Optical Society of America B, 2017, 34(2): 279-286. doi: 10.1364/JOSAB.34.000279
[12]	YACOBY E, WAICHMAN K, SADOT O, et al. Modeling of flowing-gas diode-pumped potassium laser with different pumping geometries: scaling up and controlling beam quality[J]. IEEE Journal of Quantum Electronics, 2017, 53(4): 1000107.
[13]	PIZA G A, STALNAKER D M, GUILD E M, et al. Advancements in flowing diode pumped alkali lasers[J]. Proceedings of SPIE, 2016, 9729: 972902.
[14]	YACOBY E, AUSLENDER I, WAICHMAN K, et al. Analysis of continuous wave diode pumped cesium laser with gas circulation: experimental and theoretical studies[J]. Optics Express, 2018, 26(14): 17814-17819. doi: 10.1364/OE.26.017814
[15]	BARMASHENKO B D, ROSENWAKS S, WAICHMAN K. Kinetic and fluid dynamic processes in diode pumped alkali lasers: semi-analytical and 2D and 3D CFD modeling[J]. Proceedings of SPIE, 2014, 8962: 89620C.
[16]	SHEN B L, HUANG J H, XU X Q, et al. Modeling of steady-state temperature distribution in diode-pumped alkali vapor lasers: analysis of the experimental results[J]. IEEE Journal of Quantum Electronics, 2017, 53(3): 1500207.
[17]	GAVRIELIDES A, SCHLIE L A, LOPER R D, et al. Unstable resonators for high power diode pumped alkali lasers[J]. Proceedings of SPIE, 2017, 10090: 100901M.
[18]	HUANG J H, SU CH Y, XU X Q, et al. Theoretical simulations on pulsed exciplex pumped Rb vapor laser[J]. Optics & Laser Technology, 2021, 141: 107165.
[19]	YANG J, AN G F, GUO J W, et al. Study on a gas flowing diode pumped cesium laser[J]. Proceedings of SPIE, 2021, 11890: 118900N.
[20]	徐艳, 陈飞, 谢冀江, 等. 缓冲气体对碱金属蒸汽激光器工作特性的影响[J]. 红外与激光工程,2015,44(2):455-460. doi: 10.3969/j.issn.1007-2276.2015.02.010 XU Y, CHEN F, XIE J J, et al. Influence of buffer gas on performance of alkali vapor laser[J]. Infrared and Laser Engineering, 2015, 44(2): 455-460. (in Chinese). doi: 10.3969/j.issn.1007-2276.2015.02.010
[21]	ROTONDARO M D, PERRAM G P. Role of rotational-energy defect in collisional transfer between the 5 ²P_{1/2, 3/2} levels in rubidium[J]. Physical Review A, 1998, 57(5): 4045-4048. doi: 10.1103/PhysRevA.57.4045
[22]	LEMMON E W. Thermophysical properties of fluid systems[J]. NIST Chemistry WebBook, 2010. (查阅网上资料, 未找到对应的卷期页码信息, 请确认) .
[23]	SHU H, BASS M. Three-dimensional computer model for simulating realistic solid-state lasers[J]. Applied Optics, 2007, 46(23): 5687-5697. doi: 10.1364/AO.46.005687
[24]	WAICHMAN K, BARMASHENKO B D, ROSENWAKS S. CFD DPAL modeling for various schemes of flow configurations[J]. Proceedings of SPIE, 2014, 9251: 92510U. doi: 10.1117/12.2067019
[25]	YAMAMOTO T, YAMAMOTO F, ENDO M, et al. Experimental investigation of gas flow type DPAL[J]. Proceedings of SPIE, 2017, 10254: 102540S.