Holographic Beamformer Designed By An Iterative Technique

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

doi:10.1117/12.951481

6 May 1989 Holographic Beamformer Designed By An Iterative Technique

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

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.

Citation Download Citation

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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