Modeling of the laser beam shape for high-power applications
作者: Jan K. JabczyńskiMateusz KaskowLukasz GorajekKrzysztof KopczyńskiWaldemar Zendzian
作者单位: 1Military University of Technology
刊名: Optical Engineering, 2018, Vol.57 (4), pp.046107-046107
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.57.4.046107
关键词: Laser and laser opticsLaser beam shapingThermal effects
原始语种摘要: Aperture losses and thermo-optic effects (TOE) inside optics as well as the effective beam width in far field should be taken into account in the analysis of the most appropriate laser beam profile for high-power applications. We have theoretically analyzed such a problem for a group of super-Gaussian beams taking first only diffraction limitations. Furthermore, we have investigated TOE on far-field parameters of such beams to determine the influence of absorption in optical elements on beam quality degradation. The best compromise gives the super-Gaussian profile of index p = 5, for which beam quality does not decrease noticeably and the thermo-optic higher order aberrations are compensated. The simplified formulas were derived for beam quality metrics (parameter M 2 and...
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  • degradation 减嚣夷酌
  • quality 品质
  • effective 有效的
  • effects 海员自身物品
  • influence 影响
  • higher 
  • ratio 
  • decrease 减少
  • laser 激光
  • applications 应用程序