PLZT modulators for optical communications

Techniqus for efficient modulation of multimode unpolariezed light are important for optical communications. Integrated optic and micro-optic modulators were constructed using the electric field induced scattering effects in 9/65/35 PLZT and modulation bandwidths of up to 1MHz were obtained. With proper de bias, a modulation effieciency of 30mW/MHz for 50% modulation indices was achieved in anintegrated optic modulator. The micro-optic modulator was constructed to allow for efficient coupling into optical fiber. The design and performance of these modulators were presented.