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Article Dans Une Revue Ultrasonics Année : 2017

Double acousto-optic deflector system for increased scanning range of laser beams

Résumé

A new laser scanning system is presented based on two wide-band acousto-optic deflectors. The interaction medium is tellurium dioxide. Anisotropic interactions take place under two different tangential phase matching configurations in such a way that the acousto-optic bandwidths add up. We demonstrate the feasibility of such a cascade deflection system for the wavelength of λ = 514 nm. The total frequency bandwidth is Δf = 100 MHz, equally distributed between the two acousto-optic deflectors. The total angular scan at the output is Δθ = 4.4° leading to 125 resolvable spots for a 1 mm truncated Gaussian beam.
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Dates et versions

hal-03548763 , version 1 (31-01-2022)

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Jean-Claude Kastelik, Samuel Dupont, Konstantin B. Yushkov, Vladimir Molchanov, Joseph Gazalet. Double acousto-optic deflector system for increased scanning range of laser beams. Ultrasonics, 2017, 80, pp.62-65. ⟨10.1016/j.ultras.2017.04.014⟩. ⟨hal-03548763⟩
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