Abstract

The design and performance of a digital scanner based on ferroelectric liquid-crystal switchable wave plates and passive nematic liquid-crystal prisms are reported. The liquid-crystal prisms function as low-cost, integrable, low-angle birefringent prisms. A 1 × 64 scanner was built with −5.3 dB of average loss. By using an active filter, the limiting mispolarization cross talk of the scanner was reduced from −13 dB to less than −25 dB.

© 1990 Optical Society of America

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