Journal
APPLIED PHYSICS LETTERS
Volume 87, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2033133
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We report a traveling-wave electro-optic sinusoidal deflector which operates in a picosecond time scale. The deflector is fabricated by use of simple domain-engineering processes in a LiTaO3 electro-optic crystal. The shape of the domain inverted region in a traveling-wave electro-optic phase modulator is theoretically designed in consideration of velocity mismatch between an optical group velocity and a microwave phase velocity in a crystal for spatial linear distribution of the modulation index within an optical beam cross section. At a deflection period of 61.5 ps, the maximum resolvable spot number of 13.0 +/- 0.6 is demonstrated. Our EOD can be applicable to time-space optical information processing systems with the minimum temporal resolution of 1.5 ps. (c) 2005 American Institute of Physics.
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