Abstract
A tilted-finger chirp transducer which had evolved from multiple tilted-tranducers was used to realize wide-band acoustooptic Bragg deflection in a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Y</tex> -cut LiNbO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> waveguide. A deflector bandwidth of 50 percent centered at 500 MHz and a diffraction efficiency of 16 percent at an RF drive power of 200 mw have been measured. Some comments on the relative merits of a tilted-finger chirp transducer versus multiple transducers for wide-band acoustooptic Bragg deflection are made.
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