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OPTICAL SYSTEM HAVING ABERRATIONS FOR TRANSFORMING A GAUSSIAN LASER-BEAM INTENSITY PROFILE TO A QUASI-FLAT-TOPPED INTENSITY PROFILE IN A FOCAL REGION OF THE OPTICAL SYSTEM
OPTICAL SYSTEM HAVING ABERRATIONS FOR TRANSFORMING A GAUSSIAN LASER-BEAM INTENSITY PROFILE TO A QUASI-FLAT-TOPPED INTENSITY PROFILE IN A FOCAL REGION OF THE OPTICAL SYSTEM
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机译:光学系统存在将光学高斯激光束强度分布转换为光学系统焦点区域中准平顶强度分布的偏差
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摘要
An optical system is configured for projecting an image having a quasi-flat-topped intensity profile from a laser-beam having a Gaussian intensity profile. The optical system includes a diffraction limited lens for focusing the laser beam and one or more optical elements that introduce aberration into the beam before the beam is focused. The aberration introduced causes the Gaussian intensity profile to be changed to the quasi-flat-topped intensity profile at some position in a focal region of the diffraction-limited lens.
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