A laser fringe projection system based on a pair of identical acousto-optic deflectors operated at the same frequency and using tangential phase matching anisotropic interaction is demonstrated, achieving large bandwidth and high efficiency. A bandwidth and an acousto-optic efficiency higher than 60% have been measured at wavelength of . The specific pris-matic configuration of the in-house developed deflectors greatly facilitates optical alignment of the instrument. The spatial period of the interference fringes can be dynamically controlled over almost one decade by tuning the frequency of the acoustic carriers.
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© 2007 American Institute of Physics.
2007
American Institute of Physics
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