The design of diffractive optical elements that incorporate several optical functions in a single element is discussed. The technique used involves iterative optimization. A previous paper is continued, in which initial results with few sampling points were reported. Here new results that involve a large number of sampling points are reported. Because the algorithm is computationally intensive with a large number of data points, the parallel implementation of the algorithm on a MASPAR machine is described. MASPAR is a single-instruction multiple-data machine with 16,384 processors. The computer simulations discussed involve simultaneous wavelength demultiplexing, focusing, and the filtering out of a particular wavelength component. It is shown that satisfactory designs of diffractive optical elements can be achieved by the assignment of only a small number of sampling points on the output plane that adequately specify what is required at each wavelength.
© 1995 Optical Society of America
Original Manuscript: December 22, 1993
Revised Manuscript: November 14, 1994
Published: June 10, 1995
M. P. Chang, O. K. Ersoy, B. Dong, G. Yang, and B. Gu, "Iterative optimization of diffractive phase elements simultaneously implementing several optical functions," Appl. Opt. 34, 3069-3076 (1995)