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Spherical Fourier Cell and Application for Optical True Time Delay

By David J. Rabb, Betty Lise Anderson, Senior Member, William D. Cowan, Senior Member and Olga Blum Spahn


Abstract—A new optical configuration for switching light beams called a spherical Fourier cell is explained. Its use for optical true time delay is outlined. An experimental apparatus was constructed for a 6–bit delay system, with 2 bits demonstrated. Delays of 0, 2.1, 4.1, and 6.2 ns were measured. Loss and crosstalk measurements are also given. Index Terms—Beam forming, Fourier optics, optical signal processing, optical time delay, phased array antenna. I

Year: 2013
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