1 December 1991 Upper bound on the diffraction efficiency of phase-only array generators
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Abstract
For one-dimensional binary phase [(0,π) and (0,non-π)] array generators and for one-dimensional continuous or multilevel quantized phase array generators, an upper bound on diffraction efficiency is presented for fan-outs ranging from 2 to 25. The upper bound is determined by optimizing, with respect to array phase, the upper bound on diffraction assuming a coherent array. To determine the upper bound for binary phase gratings restrictions on array phase are imposed. For fan-outs greater than five, the upper bound on diffraction efficiency for continuous phase fan-outs ranges between 97% and 98%; for (0,π)-binary phase fan-outs the upper bound ranges between 83% and 84%; and for (0,non-π)-binary phase, between 87% and 88%.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph Neil Mait, Joseph Neil Mait, } "Upper bound on the diffraction efficiency of phase-only array generators", Proc. SPIE 1555, Computer and Optically Generated Holographic Optics; 4th in a Series, (1 December 1991); doi: 10.1117/12.50621; https://doi.org/10.1117/12.50621
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