受激布里渊散射脉冲压缩技术研究进展

廉玉东; 王禹贺; 章雨琴; 韩世伟; 虞洋; 齐萱; 栾楠楠; 白振旭; 王雨雷; 吕志伟

doi:10.11884/HPLPB202133.210006

受激布里渊散射脉冲压缩技术研究进展

doi: 10.11884/HPLPB202133.210006

廉玉东^{1, 2, 3,},
王禹贺^{1, 2, ,},
章雨琴^{1, 2},
韩世伟^{1, 2},
虞洋^{1, 2},
齐萱^{1, 2},
栾楠楠³,
白振旭^{1, 2, 3},
王雨雷^{1, 2, 3},
吕志伟^{1, 2, 3}

1.
河北工业大学先进激光技术研究中心，天津 300401
2.
河北省先进激光技术与装备重点实验室，天津 300401
3.
天津市电子材料与器件重点实验室，天津 300401

基金项目: 国家自然科学基金项目（61905062，61905061，61927815，62075056）；中国博士后科学基金项目（2020M670613）；河北省博士后择优资助项目（B2020003026）；河北省自然科学基金项目（F2019202294）；河北省科技创新战略资助项目（20180601）；全光网络与现代通信网教育部重点实验室（北京交通大学）项目（AON2019005）

详细信息

作者简介:
廉玉东（1989—），男，博士，讲师，主要从事高功率固体激光技术及应用研究

通讯作者:
王禹贺（1994—），男，硕士研究生，主要从事SBS脉冲压缩及激光探测方面的研究

中图分类号: O437.2
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出版历程
- 收稿日期: 2021-01-05
- 修回日期: 2021-04-13
- 网络出版日期: 2021-04-26
- 刊出日期: 2021-05-20

Research progress of stimulated Brillouin scattering pulse compression technique

Lian Yudong^{1, 2, 3
,},
Wang Yuhe^{1, 2
, ,},
Zhang Yuqin^{1, 2},
Han Shiwei^{1, 2},
Yu Yang^{1, 2},
Qi Xuan^{1, 2},
Luan Nannan³,
Bai Zhenxu^{1, 2, 3},
Wang Yulei^{1, 2, 3},
Lü Zhiwei^{1, 2, 3}

1.
Center for Advanced Laser Technology, Hebei University of Technology, Tianjin 300401, China
2.
Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin 300401, China
3.
Tianjin Key Laboratory of Electronic Materials and Devices, Tianjin 300401, China

摘要

摘要:
受激布里渊散射（SBS）作为三阶光学效应广泛应用于激光组束、分布式光纤传感、布里渊激光器等领域。近年来，SBS脉冲压缩亦得到特殊关注。基于布里渊放大过程中的能量转移特性，SBS脉冲压缩技术能够将ns量级脉冲压缩至亚ns量级，峰值功率可提升1～2个数量级。系统介绍了SBS脉冲压缩基本理论，综合论述了SBS压缩器结构、增益介质、泵浦脉冲等因素对脉冲压缩特性的影响，并对SBS脉冲压缩发展趋势进行了展望，为今后SBS特性的研究提供了有益参考，也为高重频、高能量激光的获取提供了可行方案。
- 受激布里渊散射 /
- 脉冲压缩 /
- 增益介质 /
- 声子寿命 /
- 泵浦脉冲
Abstract:
Stimulated Brillouin scattering (SBS) as a third-order optical effect is widely used in laser beam combination, distributed fiber sensing, Brillouin lasers and other fields. In recent years, SBS pulse compression has also received special attention. Based on the energy transfer characteristics of the Brillouin amplification process, SBS pulse compression technology can compress nanosecond pulses to sub-nanosecond levels, and the peak power can be increased by 1-2 orders of magnitude. This paper systematically introduces the basic theory of SBS pulse compression, comprehensively discusses the influence of SBS compressor structure, gain medium, pump pulse and other factors on pulse compression characteristics, and looks forward to the development trends of SBS pulse compression. It provides a useful reference for the future study of SBS characteristics and a feasible scheme for the acquisition of high repetition frequency and high energy laser.
- stimulated Brillouin scattering /
- pulse compression /
- gain medium /
- phonon lifetime /
- pump pulse

HTML全文

图 1 泵浦脉冲与斯托克斯脉冲相互作用图

Figure 1. Schematic diagram of the interaction between pump pulse and Stokes pulse

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图 2 单池结构原理图

Figure 2. Schematic diagram of single cell structure

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图 3 紧凑双池结构原理图

Figure 3. Schematic diagram of compact double cell structure

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图 4 准稳态SBS压缩实验原理图^[62]

Figure 4. Schematic diagram of quasi-steady state SBS compression experiment^[62]

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图 5 高重复频率下固体介质SBS压缩实验装置^[75]

Figure 5. Experimental set of solid medium SBS pulse compression at high repetition rate^[75]

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图 6 两步SBS脉冲压缩实验原理图^[77]

Figure 6. Schematic diagram of the two-step SBS pulse compression experiment^[77]

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图 7 双长腔SBS脉冲压缩光学布局^[85]

Figure 7. Optical layout of SBS compression with double-long cavity^[85]

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图 8 三种混合增益介质能量反射率与泵浦能量的关系^[67]

Figure 8. Relationship between energy reflection and pump energy in the three mixed gain media^[67]

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图 9 基于全氟碳介质的脉冲压缩实验光路^[91]

Figure 9. Optical path of pulse compression experiment based on perfluorocarbon medium^[91]

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图 10 压缩脉冲宽度和能量反射率随入射能量增加的变化关系^[92-93]

Figure 10. Variation of compressed pulse width and energy reflectivity with the increase of input energy^[92-93]

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图 11 脉冲压缩比与增益系数的关系^[99]

Figure 11. Relationship between pulse compression ratio and gain coefficient^[99]

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图 12 能量转换效率与增益系数的关系^[100]

Figure 12. Relationship between energy conversion efficiency and gain coefficient^[100]

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图 13 泵浦能量影响^{[41, 59]}

Figure 13. Pump energy performance^{[41, 59]}

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图 14 转换效率与泵浦能量的关系^[42]

Figure 14. Relationship between conversion efficiency and pump energy^[42]

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图 15 Stokes脉冲宽度与泵浦宽度的关系^[102]

Figure 15. Relationship between Stokes pulse width and pump width^[102]

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图 16 能量反射率随泵浦脉冲宽度的变化^[103]

Figure 16. Change of energy reflectivity with pump pulse width^[103]

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图 17 泵浦形状

Figure 17. Pump shape

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图 18 脉冲初始作用位置对应的压缩效果^[43]

Figure 18. Compression effect corresponding to the initial action position of pulses^[43]

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图 19 Stokes脉冲宽度随透镜焦距的变化^[107]

Figure 19. Variation of Stokes pulse width with focal length of lens^[107]

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图 20 池长的影响^[109]

Figure 20. Effect of cell length^[109]

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图 21 SBS脉冲压缩主要进展的时间轴

Figure 21. Timeline of the major advances in SBS pulse compression

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图 22 SBS压缩器光路布局：（a）旋转楔形和聚焦透镜；（b）旋转偏心透镜^[120]

Figure 22. SBS compressor optical path layout：(a) rotating wedge and focusing lens；(b) rotating off-centered lens^[120]

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图 23 不同能量下光束轮廓：（a）泵浦光束；（b，c）无偏转离心透镜；（d，e，f）有偏转离心透镜^[120]

Figure 23. Beam profile under different pump energy：(a) pump beam；(b，c) without rotating off-centered lens；(d，e，f) with rotating off-centered lens^[120]

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图 24 基于SBS和LIB组合的脉冲压缩实验装置^[54]

Figure 24. Pulse compression experimental setup based on the combination of SBS and LIB^[54]

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表 1 常用氟系列化合物的SBS参数

Table 1. SBS parameters of fluorine compounds in common use

SBS medium	refractive index	frequency shift /MHz	phonon lifetime /ns	gain coefficient /（cm·GW⁻¹）	reference
FC-40	1.29	1075	0.20	1.8	[94]
FC-43	1.30	3300	0.15	1.3	[58, 95]
FC-70	1.30	2133	0.80	0.2	[58]
FC-72	1.25	1100	1.20	6.0	[43, 96]
FC-770	1.29	1350	0.57	3.5	[40]
FC-3283	1.27	2600	0.59	4.1	[89, 95]
HT-110	1.28	553	0.60	4.7	[97]
HT-135	1.28	1109	0.40	3.0	[92]
HT-270	1.28	8401	0.10	2.3	[97]

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表 2 泵浦宽度对SBS压缩影响数值仿真参数设置

Table 2. Parameter setting of numerical simulation for the influence of pump width on SBS compression

pump power density/（MW·cm⁻²）	Stokes power density/（MW·cm⁻²）	gain coefficient/（cm·GW⁻¹）	phonon lifetime/ns	pump width/ns
500	500	0.18	0.3	2~5

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