Continuous coherent transient optical processing in a solid

15 December 1995

journal article
Published by Optica Publishing Group in Optics Letters

Vol. 20 (24) , 2514-2516
https://doi.org/10.1364/ol.20.002514

Abstract

We report what is to our knowledge the first experimental demonstration of a continuous coherent transient optical processor. A 13-bit pattern was stored as a spectral population grating in the Eu³⁺-ion ground state in a Eu³⁺:Y₂SiO₅ crystal. A 3120-bit data stream was processed continuously, yielding a cross-correlation signal that agreed well with theory. The data stream’s duration exceeded both the absorbing transition’s homogenous transverse dephasing time and upper-state lifetime. This experiment showed that by permanently storing the pattern as a population grating in the absorber’s ground state, coherent transient optical devices provide continuous, real-time data processing capability.

Keywords

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