Photon-echo-based logical processing

1 November 1993

journal article
Published by Optica Publishing Group in Optics Letters

Vol. 18 (21) , 1834-1836
https://doi.org/10.1364/ol.18.001834

Abstract

Word-by-word logical and and or operation with photon-echo processing is demonstrated for what is to our knowledge the first time. The photon-echo process can store sequences of optical data before processing. The present logical operations on 8- and 4-bit words are performed by using single-shot frequency-chirped photon echoes. Data rates of approximately 1 MHz, input energies of 1–10 nJ/bit, and output energies in the picojoule-per-bit range are demonstrated by using a transition with a transition probability of only 20 s⁻¹.

Keywords

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