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Guided-wave electro-optic beam deflector using domain reversal in LiTaO3

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5 Author(s)
Qibiao Chen ; Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA ; Yi Chiu ; Lambeth, D.N. ; Schlesinger, T.E.
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We have fabricated and demonstrated the operation of electro-optic beam deflectors using domain reversal in planar waveguides fabricated on LiTaO3 substrates. The planar waveguides were made using proton exchange on z-cut substrates, and proton exchange with subsequent rapid thermal annealing was used to form the inverted domains. The deflection sensitivity of the device was measured to be about 6.7 mrad/kV. Calculations indicate that the deflection sensitivity should be increased by a factor of 25 to 30 with improvements in device geometry

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Lightwave Technology, Journal of  (Volume:12 ,  Issue: 8 )