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Results are presented from the development and experimental study of an eight-channel acoustooptical deflector with central frequency f 0 = 1000 MHz and bandwidth ∆ f Σ = 500 MHz within the limits of a 6-dB nonuniformity of diffraction efficiency, the maximum value of which is η ≈ 0.35 %/W. In the deflector, a flat spiral delay-line structure excites ultrasound from the surface of a Z-cut LiNbO 3 piezoelectric crystal. The technical parameters of the deflector are discussed, as are the optical, microwave electrical, and acoustical aspects of its construction. cmFig. 1. Photograph of the multichannel acoustooptical deflector.

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