Stability of optical elements in large lasers

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Stability of optical elements in large lasers

Article | 更新时间：2020-08-12

- Stability of optical elements in large lasers
- Optics and Precision Engineering Vol. 17, Issue 10, Pages: 2411-2417(2009)
- 作者机构：
  
  中国工程物理研究院激光聚变研究中心2. 重庆大学机械机械工程学院机械电子系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN248.1
- Received：06 October 2008，
  
  Revised：13 December 2008，
  
  Published Online：20 October 2009，
  
  Published：20 October 2009
- 稿件说明：
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谢娜,周海,张军伟,林东晖,陈良明. 大型激光装置光学元件的稳定性分析[J]. 光学精密工程, 2009,17(10):2411-2417

Stability of optical elements in large lasers[J]. Optics and precision engineering, 2009, 17(10): 2411-2417.
谢娜,周海,张军伟,林东晖,陈良明. 大型激光装置光学元件的稳定性分析[J]. 光学精密工程, 2009,17(10):2411-2417 DOI：

Stability of optical elements in large lasers[J]. Optics and precision engineering, 2009, 17(10): 2411-2417. DOI：

摘要

大型高功率固体激光装置对打靶精度有很高的要求，总的打靶精度通常在几十微米。而分配到单个光学元件的稳定性指标只有几微米或者几个微弧度，某些光学元件的稳定性指标甚至小于一微弧。这就对结构的稳定性提出了很高的要求。以一大型激光装置为背景，以关键光机系统为例进行稳定性设计。应用有限元理论对关键光学元件及其支撑结构的稳定性进行分析，以验证光机结构设计的合理性。分析结果表明关键光学元件均满足稳定性设计指标和裕度系数。

Abstract

Large high-power solid-state laser facilities have a very high requirement for the total positioning error budget

which is within 50 microns (祄) in general. The stability budget allocated to one optical element is only several microns or microradians (祌ad). For some optical elements

the budget is even smaller than 1祌ad. Thus the requirement for stability of structures is high. The stability design is illustrated for several key optical and mechanical systems in a large laser facility. Using the finite element theory

stability due to ambient vibration is analyzed for key optical elements and support structures to verify the validity of the optical and mechanical systems. The finite element (FE) models are built for the systems. The results show that the optical elements and the support structures can satisfy the designed stability indices and all the design margins are greater than 1.5 which is very conservative based on NIF?s research.

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Related Institution

College of Mechanical and Electrical Engineering， Xi 'an Technological University， Xi 'an

School of Physics， Beijing Institute of Technology

School of Mechanical Engineering， Xi’an University of Science and Technology， Xian

National Key Laboratory of Science and Technology on Low-Level-Light

School of Electronic and Optical Engineering， Nanjing University of Science and Technology

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