Analysis of system aberration influenced by the lens tilt in a multi-pass amplifier
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摘要: 为了研究多程放大系统中的透镜倾斜对系统像差影响,采用在商用光学设计软件ZEMAX中建模进行光线追迹结合实验验证的方法,得到了初步分析结果.结果表明,在此类多程放大系统中,对远场能量集中度有较大影响的几种像差主要由透镜离轴倾斜使用造成的,其中离轴四程透镜的影响较大,而且离轴四程透镜的倾斜角度对整个多程系统输出的波前影响并非是线性上升.对校正装置的系统输出波前畸变及今后类似光路的优化设计有一定参考意义.
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关键词:
- 激光光学 /
- 像差理论 /
- 透镜倾斜 /
- Fringe-Zernike多项式
Abstract: After analyzing the resources of the system aberration in a four-pass amplification system,it was found that some aberrations which have main influenceon the energy concertration in the far field were caused by the off-axis transmission and tilt of lens.Firstly the influence of the lens tilt at different positions on the system aberration was analyzed with the commercial ZEMAX software.It concludes that the four-pass lens has main influence.Secondly the relation between the tilted angle of this lens and the aberration components was analyzed and compared based on the Fringe-Zernike polynomial.Finally experiments were performed to prove the study reasonable.The conclusion provides guidance to control the wave-front distortion of the output beams and optimize the design of the similar systems.-
Keywords:
- laser optics /
- aberration theory /
- lens tilt /
- Fringe-Zernike polynomial
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