Holographic Beamformer Designed By An Iterative Technique

M. T. Eismann; A. M. Tai; J. N. Cederquist

doi:10.1117/12.951481

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6 May 1989 Holographic Beamformer Designed By An Iterative Technique

M. T. Eismann, A. M. Tai, J. N. Cederquist

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Proceedings Volume 1052, Holographic Optics: Optically and Computer Generated; (1989) https://doi.org/10.1117/12.951481
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

A fundamentally energy efficient, two element holographic beamformer for converting a Gaussian beam into a rectangular uniform beam in the far-field was designed, fabricated, and tested. The design method is based on a modification of the Gerchberg-Saxton iterative Fourier transform algorithm to include an x-y separability constraint on the phase of one of the holographic elements. This modification gave a design with improved beamforming performance. The two required holographic elements were fabricated using a combination of optical and computer-generation techniques. The experimental results verify the effectiveness of the design approach.

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M. T. Eismann, A. M. Tai, and J. N. Cederquist "Holographic Beamformer Designed By An Iterative Technique", Proc. SPIE 1052, Holographic Optics: Optically and Computer Generated, (6 May 1989); https://doi.org/10.1117/12.951481

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