Analysis and optimization on single-zone binary flat-top beam shaper

Jame J. Yang; Michael R. Wang

doi:10.1117/1.1617310

1 November 2003 Analysis and optimization on single-zone binary flat-top beam shaper

Jame J. Yang, Michael R. Wang

Optical Engineering, Vol. 42, Issue 11, (November 2003). https://doi.org/10.1117/1.1617310

We report on the analysis and optimization of a binary phase element for shaping a Gaussian laser beam to a flat-top beam. Simulation results indicate that a single-zone binary phase plate can achieve excellent flat-top beam shaping quality similar to that achieved by using multiple zones. The degradation of flat-top beam shaping quality due to etching depth errors, deviation of illuminating wavelength from design value, and variation of input beam size can be compensated to some extent through on-axis adjustment of the flat-top beam observation plane. Experiments verify these theoretical expectations. The increased beam shaper fabrication tolerance can be greatly beneficial for low-cost prototyping and production of flat-top beam shapers.

©(2003) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Jame J. Yang and Michael R. Wang "Analysis and optimization on single-zone binary flat-top beam shaper," Optical Engineering 42(11), (1 November 2003). https://doi.org/10.1117/1.1617310

Published: 1 November 2003

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