A Sample And Hold Technique For Serial To Parallel Digital Optical Data Conversion

L. M. Walpita

doi:10.1117/12.939926

11 August 1987 A Sample And Hold Technique For Serial To Parallel Digital Optical Data Conversion

L. M. Walpita

Proceedings Volume 0752, Digital Optical Computing; (1987) https://doi.org/10.1117/12.939926
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

A sample and hold technique is described by utilizing a newly observed cross modulation effect. In the modulation effect a light beam from a LED source is transmitted through a semi insulating GaAs sample. When an optical pulse hits the sample in the presence of a voltage pulse an enhanced absorption of LED light is observed after the optical pulse. The absorption is held by the duration of the voltage pulse. This effect can be utilized in spatial light modulators for serial to parallel data conversion and in many other applications involving electrically addressable memory.

Citation Download Citation

L. M. Walpita "A Sample And Hold Technique For Serial To Parallel Digital Optical Data Conversion", Proc. SPIE 0752, Digital Optical Computing, (11 August 1987); https://doi.org/10.1117/12.939926

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