Abstract

As a proof of concept demonstration a single-pixel optical memory system was constructed and tested successfully. The system used polarization-based logic employing two optically addressed spatial light modulators (OASLMs).¹ The devices consist of a hydrogenated amorphous silicon (a:Si-H) photosensor and ferroelectric liquid crystal modulator. The memory system used two devices in a synchronous feedback configuration in which each OASLM was refreshed while the opposite device stored the data.² The system operated at 500 Hz and was limited by the optical power available to write to the photosensor.

© 1991 Optical Society of America