精密位相主动控制技术研究
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摘要
高功率固体激光装置中有诸多因素导致波前畸变,影响光束质量;为实现高效的束靶耦合,必须精密控制波前以实现特定焦斑分布。本文通过对已有位相控制技术的充分调研,提出了精密位相主动控制的方法,并围绕这一方法展开了系统研究,主要研究内容如下:
     一、从波前频谱的角度出发,研究了中高频位相对焦斑能量集中度的影响;给出了变形镜控制能力的频谱评价方法,对比分析了不同驱动器数目下变形镜对装置性能的改善能力;明确了高空间分辨率变形镜的优势,如可控波前频段的扩展、峰值功率的有效提升等;研究了位相主动控制与空间滤波技术的耦合问题。
     二、针对易于实现高空间分辨率的压电薄膜变形镜开展了优化分析工作。建立了压电薄膜变形镜的数学模型,对其使用口径、交联值等参数做了优化分析,并明确了较大交联值变形镜用于像差校正的优势;建立压电薄膜变形镜的有限元模型,对各层厚度、材料参数、电极形状做了优化分析;通过有限元模型对变形镜的夹持方式做了研究,认为夹持带来的接触应力是造成变形镜不稳定工作的主要原因,提出了改进方式,并给予了理论验证;对压电薄膜变形镜样件进行了闭环校正实验,获得了较好的闭环校正效果;
     三、就采用高空间分辨率位相控制器件进行焦斑整形的可行性进行了模拟研究。首先,以传统高斯响函形式的变形镜作为模型,对AO系统用于焦斑整形的可行性进行了理论论证,并对交联值、波前畸变等的影响做了优化分析;其次,模拟验证了压电薄膜变形镜用于焦斑整形的可行性:第三,提出了多变形镜实现高空间分辨率的设想,对其可行性进行了理论论证,给出了多变形镜AO系统的控制算法,建立了双变形镜AO系统的模型;最后,给出了采用双变形镜实现焦斑整形的实验设计方案,并对结果进行了预估。
     四、对其他相关技术途径进行了思考与研究。首先,从ICF物理实验对激光束匀滑的要求出发,分析了离焦打靶对焦斑均匀性的控制能力;其次,分析对比了多种焦斑主动控制算法,指出了这类算法在现有装置上的潜在应用,并就SPGD算法、SA算法进行了详细的研究、对比,对其主要的控制参数做了优化分析,提出了一种通用的改进方法。
There are a lot of factors leading to wavefront distortion, and influencing beam quality. In order to achieve high coupling efficiency between laser beam and target, the phase must be precisely controlled to achieve the special focal irradiance profile. This article is based on the idea of full frequency wavefront control, and proposes the concept of active precise phase control. The main contents are as follows:
     Firstly, basing on the phase spectrum method, we studied the influence of precise phase to the far-filed energy concentration. Then, we give the spectrum evaluation method of deformable mirror. The control results of DMs with different actuators are compared, and there are some advantages of high order DM:frequency expansion of control, and increasing of peak power. The coupling relation between DM and pin-hole is also studied.
     Secondly, the optimum study of piezoelectric film deformable mirror (PFDM) is done. We build a mathematical model of this DM, and the coupling coefficient and beam aperture are discussed based this model. Then, the finite element model is build, and the main material parameters are studied and optimized. The griping method is also studied based finite element model, and some improving methods are proposed and demonstrated.
     Thirdly, the method of focal irradiance profile control with high order DM is proposed. The influencing of coupling coefficient and wavefront distortion is discussed. Then a method to achieve high spatial frequency with dual-deformable mirror is proposed. The main questions of its application are discussed.
     Finally, some other technical approaches are studied. Firstly, from the ICF laser beam smoothing of physical requirements, analyzes the focal spot uniformity of defocus shooting; secondly, analyzes and compares a wide range of focal spot active control algorithms. The SPGD algorithm, SA algorithm are studied in detail. The main control parameters are optimized and a common improving method is proposed.
引文
1郑志坚,ICF基本概念[R], 《惯性约束聚变与强激光技术》, (内部资料),1990年
    2 J.D.Zuegel, S.Borneis, C.Barty, et.al.. Laser challenges for fast ignition[J]. Fusion Science and Technology,2006,49:453-482
    3丁磊,赵润昌,李明中,等.反射式液晶光阀用于激光束空间整形可行性研究[J].强激光与粒子束,2005,17(6):849~852.
    4 Mark Rotter, Ken Jancaitis, Chris Marshall, et.al.. Pump-induced wavefront distortion in prototypical NIF/LMJ amplifiers-Modeling and comparison with experiments[J]. SPIE, Vol,3492:638-659.
    5邓青华,张小民,景峰,等.激光束低频位相误差叠加规律研究[J].强激光与粒子束,2002,24(1):81-84.
    6 Jay S. Pearlman, John P. Anthes. Closure of pinholes under intense laser radiation[J]. Applied Optics, 1997,16(8):2328-2331.
    7 J. M. Auerbach, N. C. Holmes, J. T. Hunt, et.al.. Closure phenomena in pinholes irradiated by Nd laser pulses[J]. Applied Optics,1979,18(4):2495-2499.
    8刘红婕,景峰,左言磊,等.高功率激光装置中局部波前畸变的非线性传输[J].强激光与粒子束,2006,18(11):1850~1854.
    9张鑫,刘红婕,赵军普,等.高功率固体激光系统空间滤波小孔尺寸设计[J].激光与光电子学进展,2010,47(1):11402-1~11402-5.
    10 Jerome Neauport, Xavier Ribeyre, Jerome Daurios, et.al.. Design and optical characterization of a large continuous phase plate for Laser Integration Line and laser Megajoule facilities[J]. Applied Optics,2003,42(13):2377-2382.
    11 John A. Marozas. Fourier transform-based continuous phase-plate design technique:a high-pass phase-plate design as an application for OMEGA and the National Ignition Facility[J]. J.Opt.Soc.Am.A, 2007,24(1):74-83.
    12李平,粟敬钦,马驰,等.光谱色散匀滑对焦斑光强频谱的影响[J].物理学报,2009,58(9):6210~6215.
    13李平,马驰,粟敬钦,等.时域与空域结合实现光束匀滑的光谱优化分析[J].中国激光,2008,35(4):534~538.
    14 Dixit S N, Thomas I M, Woods B W, et al.. Random phase plates for beam smoothing on the Nova laser [J]. Applied Optics,1993,32:2543-2554.
    15 Thomas I, Dixit S N, Rushford M C, et al.. Kinoform phase plates for focal plane irradiance profile control [J]. Optics Letters,1994,19:417-419.
    16 Lin Y, Kessler T J, Lawrence G N. Distributed phase plates for super-Gaussian focal plane irradiance profiles[J].Optics Letters,1995,20(7):764-771.
    17李平,马驰,粟敬钦,等.基于焦斑空间频谱控制的连续何相板设计[J].强激光与粒子束,2008,20(7):1114~1118.
    18江秀娟,周中蕾,林尊琪,等.利用消衍射透镜列阵及光谱色散平滑实现焦斑均匀辐照[J].物理学报,2006,55(11):5824~5828.
    19 J. H. Campbell, R. A. Hawley-Fedder, C. J. Stolz, et.al.. NIF optical materials and fabrication technologies:An overview[J]. SPIE, Vol.5341:84-101.
    20 James E. Murray, David Milam, Charles D. Boley, et.al.. Spatial filter pinhole development for the Natinal Ignition Facility[J]. Applied Optics,2000,39(9):1405-1420.
    21陆俭,王二玉,丁良恩.啁啾脉冲放大系统中空间滤波器小孔尺寸的设计[J].光学学报,2006,26(1):71-76.
    22张鑫.滤波小孔等离子体堵孔效应的时空特性研究[R].内部报告.
    23张锐,张小民,粟敬钦,等.用于惯性约束聚变驱动器的静态相位控制元件[J].中国激光,2006,33(3):311~315.
    24 Wade Williams. Simulations of a phase corrector plate for the National Ignition Facility [J]. SPIE, Vol.3492:355-362.
    25 T. H. Bett, A. R. Barnes, N. W. Hopps, et al.. Development of static phase control elements for high power solid state lasers [J]. SPIE, Vol.4440:93-100
    26姜文汉.光电技术研究所的自适应光学技术[J].光电工程,1995,22(1):1~13.
    27姜文汉,杨泽平,管春林,等.自适应光学技术在惯性约束聚变领域应用的新进展[J].中国激光,2009,36(7):1625~1634.
    28 Yudong Zhang, Ning Ling, Zeping Yang, et.al.. An adptive optical system for ICF application[J]. SPIE, Vol.4494:96-103.
    29 Christian Veillet, Olivier Lai, Derrick Salmon, et.al.. VASAO:Visible all sky adaptive optics[J]. SPIE, Vol.6272:62722I-1~627221-9.
    30 P. J. Wegner, M. A. Henesian, J. T. Salmon, et.al.. Wavefront and divergence of the Beamlet prototype laser[J]. SPIE, Vol.3492:1019-1030.
    31代万俊,胡东霞,周维,等.神光Ⅲ原型装置自适应光学系统应用技术研究[J].光学学报,2008,28:102~106.
    32 R. A. Zacharias, N. R. Beer, E. S. Bliss, et.al.. Alignment and wavefront control systems of the National Ignition Facility[J]. Optical Engineering,2004,43(12):2873-2884.
    33 Claire Grosset-Grange, Jean-Noel Barnier, Christian Chappuis, et.al.. Design principle and first results obtained on the LMJ deformable mirror prototype[J]. SPIE, Vol.6584:658403-1~658403-14.
    34 H. Baurnhacker, G. Pretzler, K. J. Witte, et.al. Correction of strong phase and amplitude modulations by two deformable mirrors in a multistaged Ti:sapphire laser[J]. Optics Letters.2002,27(17):1570-1572.
    35 N. Miyanaga, H. Azechi, T. Jitsuno, et.al.. Development of 10-kJ PW Laser for the FIREX-I Program[J]. IF/P5-2.
    36葛传文,张为俊,高晓明.受激布里渊散射相位共轭在激光技术中的应用进展[J].激光与光电子学进展,2002,39(10):6-11.
    37刘淑香,李景尧,张存华.受激布里渊散射相何共轭镜在固体激光中的应用[J].应用光学,2002,23(1):29~33.
    38胡东霞,张小民,景峰,等.用角锥棱镜阵列抑制低频波前畸变[J].强激光与粒子束,2003,15(11):1057~1160.
    39蒋东镔,徐美健,胡东霞,等.角锥阵列改善固体热容激光器光束质量[J].强激光与粒子束,2008,20(8):1257~1260.
    40 M.L.Spaeth, K.T.Manes, C.C.Widamayer et al.. National Ignition Facility wavefront requirements and optical architecture[J]. Optial.Engineering.2004,43(12):2854-2865.
    41 Seung-Whan Bahk, Ed Fess, Brian E. Kruschwitz, et.al.. A high-resolution, adaptive beam-shaping system for high-power lasers[J]. Optics Express.2010,18(9):9151-9163.
    42 Andrew Norton, Julia W. Evans, Donald Gavel, et.al. Preliminary characterization of Boston Micromachines 4096-actuator deformable mirror[J]. SPIE,Vol.7209:720901-1~720901-7.
    43 M. Loktev, O. Soloviev, G. Vdovin. Adaptive optics guide[M].OKO Technologies.2008.
    44 Michael A, Helmbrecht, Thor Juneau. Performance of a high-stroke, segmented MEMS deformable-mirror technology[J]. SPIE, Vol.6113:61130L-1~61130L-10.
    45 M.S. Griggith, L.C. Laycock, J.M. Bagshaw, et.al. Dual-use bimorph deformable mirrors[J]. SPIE, Vol.5859:585906-1~585906-9.
    46阎吉祥,液晶空间光调制器在自适应光学中的应用[J].光学技术,1999,(2):3~4.
    47 G. Vdovin, M. Loktev, A. Simonov. Low-cost deformable mirrors:technologies and goals[J]. SPIE, 58940B-1-58940B-10.
    48 J. K. Lawson, J. M. Auerbach, R. E. English, et.al. NIF optical specification—The importance of the RMS gradient[J]. SPIE, Vol.3492:336-343
    49 D. M. Aikens, C. R. Wolfe, and J. K. Lawson. The use of power spectral density (PSD) functions in specifying optics for the National Ignition Facility[J]. SPIE, Vol.2576:281-292.
    50 Peter M. Celliers, Kent G. Estabrook, Russell J. Wallace, et.al. Spatial filter pinhole for high-energy pulsed lasers[J]. Applied Optics,1998,37(12):2371-2378.
    51 J. H. Campbell, R. A. Hawley-Fedder, C. J. Stolz, et.al. NIF optical materials and fabrication technologies:An overview[J]. SPIE, Vol.5341:84-101.
    52 J. Feinleib, S. G. Lipson, P. F. Cone. Monolithic piezoelectric mirror for wavefront correction[J]. Applied Physics Letters,1974,25(5):311-313.
    53 Ehud Steinhaus, S.G.Lipson. Bimorph piezoelectric flexible mirror[J]. J.Opt.Soc.Am.1979, 69(3):478-481.
    54 Alexis V. Kudryashov, Victor I. Shmalhausen. Semipassive bimorph flexible mirrors for atmospheric adaptive optics applications[J]. Optics Engneering.1996,35(11):3064-3073.
    55 Sophie Laut, Steve Jones, Hyunkyu Park, et.al. Bimorph deformable mirror:an appropriate wavefront corrector for retinal imaging?[J]. SPIE, Vol.6007:60070Q-1~60070-15.
    56代万俊,胡东霞,周维,等.腔镜何置变形镜波前补偿与实验研究[J].中国激光,2009,36(11):2920~2923.
    57 B. Wattellier, J. Fuchs, J. P. Zou, et.al. Repetition rate increase and diffraction-limited focal spots for a nonthermal-equilibrium 100-TW Nd:glass laser chain by use of adaptive optics[J]. Optics Letters, 2004,29(21):2494-2496.
    58 Pawel Wnuk, Czeslaw Radzewicz, Jerzy S. Krasinski. Bimorph piezo deformable mirror for femtosecond pulse shaping[J]. Optics Express,2005,13(11):4154-4159.
    59杨强,朱建平,曹根瑞.双压电变形反射镜的优化设计[J].光学学报.1999.19(9):1163-1169.
    60胡东霞,压电薄膜反射镜波前补偿技术可行性研究[R].GF报告.
    61宁禹,周虹,官春林,饶长辉,姜文汉.20单元双压电片变形反射镜的影响函数有限元分析和实验测量[J].光学学报,2008,28(9):1638-1642.
    62宁禹,余浩,周虹,饶长辉,姜文汉.20单元双压电片变形镜的性能测试与闭环校正实验研究[J].物理学报,2009,58(7):4717-4723.
    63 Yu Ning, Wenhan Jiang, Ning Ling, Changhui Rao. Response function calculation and sensitivity comparison analysis of various bimorph deformable mirrors[J]. Optics Express, 2007,15(19):12030-12038.
    64 P.Halevi. Bimorph piezoelectric flexible mirror:graphical solution and comparison with experiment[J]. J.Opt.Soc.Am.1983,73(1):110-113
    65代万俊,ICF激光驱动器自适应光学技术应用问题研究[D].绵阳:中国工程物理研究院,硕士学位论文,2007.
    66 Ende Li, Yun Dai, Haiying Wang, et.al. Application of eigenmode in the adaptive optics system based on a micromachined membrane deformable mirror[J]. Applied Optics,2006,45(22):5651-5656.
    67 Dixit S N, Thomas I M, Woods B W, et al.. Random phase plates for beam smoothing on the Nova laser [J]. Applied Optics,1993,32:2543-2554
    68 Thomas I, Dixit S N, Rushford M C, et al.. Kinoform phase plates for focal plane irradiance profile control [J]. Optics Letters,1994; 19:417-419
    69 Lin Y, Kessler T J, Lawrence G N. Distributed phase plates for super-Gaussian focal plane irradiance profiles[J]. Optics Letters,1995,20(7):764-771
    70 Neauport J, Ribeyre X, Daurios J, et al.. Design and optical characterization of a large continuous phase plate for laser integration line and laser Megajoule facilities [J]. Applied Optics,2003; 42(13): 2377-2382
    71 John A. Marozas. Fourier transform-based continuous phase-plate design technique:a high-pass phase-plate design as an application for OMEGA and the National Ignition Facility[J]. J. Opt. Soc. Am. A,2007,24(1):74-83
    72 Koshichi Nemoto, Takuya Nayuki, Takashi Fujii et al. Optimum control of the laser beam intensity profile with a deformable mirror[J]. Applied Opics,1997,36(30):7689-7695
    73 R. El-Agmy, H. Bulte, A. H. Greenaway et al.. Adaptive beam profile control using a simulated annealing algorithm[J]. Optics Express,2005,13(16):6085-6091
    74 Koshichi Nemoto, Takashi Fujii, Naohiko Goto,et al.. Transformation of a laser beam intensity profile by a deformable mirror[J]. Optics Letters,1996,21(3):168-170
    75曾志革,凌宁,姜文汉He-Ne激光束的焦斑形态控制[J].强激光与粒子束,1998,10(4):581-586
    76曾志革,凌宁,姜文汉.用于ICF焦斑形态控制的能动反射镜拟合波面能力研究[J].强激光与粒子束,1998,10(1):1-5
    77李平,高功率固体激光驱动器靶面光强时空耦合控制技术研究[D].绵阳,中国工程物理研究院,硕十学位论文,2008.
    78 C.A.Haynam, P.J.Wegner, J.M.Auerbach et al.. National Ignition Facility laser performance status[J].Applied Optics,2007,46(16):3276-3303
    79 Shijie Hu, Bing Xu, Xuejun Zhang, et.al. Double-deformable-mirror adaptive optics system for phase compensation[J]. Applied Optics,2006,45(12):2638-2642.
    80 R. Conan, C. Bradley, P. Hampton, et.al. Distributed modal command for a two-deformable-mirror adaptive optics system[J]. Applied Optics,2007,46(20),4329-4320.
    81 Dai Wanjun, Hu Dongxia, Zhou Wei, Zhao Junpu,et al. Beam wavefront control of a thermal inertia laser for inertial confinement fusion application[J]. Applied Optics,2009,48(19):3691-3694.
    82杨慧珍,李新阳,姜文汉.自适应光学系统随机并行梯度下降控制算法仿真与分析[J].光学学报,2007,27(8):1355~1360.
    83杨慧珍,陈波,李新阳,等.自适应光学系统随机并行梯度下降控制算法实验研究[J].光学学报,2008,28(2):205-210.
    84 R. El-Anmy, H. Bulte, A. H. Greenaway, et.al. Adaptive beam profile control using a simulated annealing algorithm[J]. Optics Express,2005,13(16):6085-6091.

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