| 题名 | 反射式高功率激光系统波前校正技术研究 |
| 作者 | 马明 |
| 学位类别 | 硕士 |
| 答辩日期 | 2014 |
| 授予单位 | 中国科学院上海光学精密机械研究所 |
| 导师 | 施翔春 |
| 关键词 | 激活反射镜，钕玻璃，波前仿真，波前校正 |
| 其他题名 | Research On The Analysis And Correction Of Active-reflect Nd:Glass Laser System |
| 中文摘要 | 清洁能源是目前人类社会实现可持续发展道路上亟需解决的重大问题之一。利用可控激光核聚变产生的清洁核能是解决人类本世纪能源需求的光明途径。对于研究惯性约束可控核聚变，ICF驱动器提供了基础的物质条件。在世界ICF激光驱动装置研究与发展的推动下，基于传统透射型钕玻璃激光驱动装置的经验，我们拟探究一种新型的紧凑型激活反射镜式钕玻璃放大器构型，在实现较高提取效率的基础上，获得紧凑，高效，低成本的ICF驱动器解决方案。激光波前的有效控制是反射式钕玻璃激光系统的的核心关注点之一。 基于课题背景本论文围绕新构型高能钕玻璃激光系统做了如下工作： （1）调研了目前国内外ICF激光驱动系统的发展现状以及反射式片状放大器在激光领域中的应用；阐述了课题的研究意义。 （2）介绍波前的基本概念，以及在反射式钕玻璃激光系统中使用的波前计算与仿真方法。 （3）进行了反射式片状放大器的泵浦腔设计。优化了的泵浦腔泵光传输效率提高约14%强，并通过小信号增益系数的实验进行了判断验证。模拟了泵浦光的分布均匀性，并通过实验进行了验证。这部分研究结果将作为系统动态畸变研究的出发点。 （4）开发了一套应用于钕玻璃装调的现场偏光应力仪和主动低频哈特曼传感器。应用于增益介质的无应力装调和装调面型监测。 （5）对静态波前的模拟与主动控制进行了仿真研究。提出了系统静态波前的主动控制技术。 |
| 英文摘要 | Clean Energy is one of the currently major development problems of modern human society . The use of controlled-nuclear-fusion is one of the hopeful ways to generate clean nuclear power for humans in this century . For the inertial confinement controlled nuclear fusion research , ICF driver provides the basis of research conditions . With the development on the research of ICF laser drivers in the world , we intend to have a research on a new type of compact Nd: glass mirror active-reflect mirror amplifier, which based on the experience of traditional type of Brewster-angle-transmission Nd:glass laser-driven device , in achieving to get a type of high extraction efficiency , compact, efficient , low-cost solutions for ICF driver . One of the main point of this solutions is the effective control of the wavefront of the laser sysytem. Based on the background of the research on this new type of ICF driver, the following work is achieved. (1) The development of the high-peak power Nd:glass laser system and the application of active -mirror amplifier is presented. The research significance is discussed ( 2 ) Introduce the basic concepts of the wavefront , the simulation method for the analysis of the active-mirror amplifier . ( 3) The design of the pump cavity in active-mirror amplifier is achieved. The optimization of the design get an improvement in the transmission efficiency of pump light of about 14% stronger . The actual effect of the design is verified by experiments on the Analyzing of the small signal gain coefficient . The distribution of the pump light is also simulated and verified by experiment . The result of this part will serve as the starting point for the study of dynamic wavefront distortion of the system . ( 4 )A type of Polarization interferometer for stress test of optical element is designed. A type of active-hutman instrument was designed for element surface sag detect is designed. ( 5 ) Simulated on the static wavefront is made. A type of active control technology on adjustment of surface sag is proposed. |
| 语种 | 中文 |
| 内容类型 | 学位论文 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/16879]  |
| 专题 | 上海光学精密机械研究所_学位论文 |
| 推荐引用方式 GB/T 7714 | 马明. 反射式高功率激光系统波前校正技术研究[D]. 中国科学院上海光学精密机械研究所. 2014. |
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