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We measured the optical polarization dependence of the EO effect in epitaxial PLZT films. Mainly, polar nano-region switching causes optical polarization dependence of the EO effect. We fabricated a PLZT beam deflector and assembled an optical switch with 8times8 channels and less than 1-mus switching speed.
We developed a 4times4 high-speed optical switch subsystem with variable optical attenuation (VOA). This switch subsystem allows high-speed level adjustment as well as high-speed switching by using the electro-optic (EO) effect of PLZT. We demonstrate 5.5-mus switching with VOA to obtain the desired output power for optical burst switching (OBS)
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