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Journal of the Optical Society of Korea
Optimization of Diffractive Optical Elements by Genetic Algorithm
Jin-Seon Yoon and Nam Kim
Jin-Seon Yoon, Nam Kim School of Electrical & Electronics Eng., Chungbuk Nat'l Univ
J Yoon
N Kim
Issue 1,
Jin-Seon Yoon and Nam Kim, "Optimization of Diffractive Optical Elements by Genetic Algorithm," J. Opt. Soc. Korea 4, 30-36 (2000)
Detector arrays
Diffraction efficiency
Diffractive optical elements
Optical processing
Optical testing
Original Manuscript: December 17, 1999
In this paper, a method based on the Genetic Algorithm(GA) for phase optimization is proposed. The programmable hybrid optical interconnection system implemented by the spatial light modula-tor is tested for a near-real-time optical processing. Designed diffractive grating has a 74.7[%] high diffraction efficiency and a <TEX>$1.73 {\times}10^{-1}$</TEX> uniformity quantitatively. The dependence of characteris-tics on several parameters in the grating design are analyzed. Also, as a result of the geometrical transformation to obtain quantitative data for <TEX>$3 {\times} 3$</TEX> spot beams, an objective optical experiment using CCD array detector produces the mean of beam intensity as a gray level of 202, the maximum value is 225, the minimum value is 186, and uniformity is quantitatively <TEX>$1.93 {\times} 10^{-1}$</TEX>, similar to the simulation result.
© 2000 Optical Society of Korea
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