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An optical synapse based on a polymer waveguide with a GST225 active layer.

Authors :
Ionin, V. V.
Kiselev, A. V.
Burtsev, A. A.
Mikhalevsky, V. A.
Eliseev, N. N.
Asharchuk, I. M.
Sokolov, V. I.
Lotin, A. A.
Source :
Applied Physics Letters. 9/14/2021, Vol. 119 Issue 8, p1-5. 5p.
Publication Year :
2021

Abstract

This paper presents the results of an experimental study, implementation, and numerical simulation of the transmissivity of a polymer waveguide covered by a GST225 thin film with various phase states. The paper considers an optical synapse prototype based on the interface between the waveguide and an optically controlled GST225 film. We demonstrate the fundamental possibility of controlling an optical signal in the telecommunication C-range as it passes through the synaptic interface via the action of an external laser on an optically active GST225 film. Experimentally, 40% single- and multi-level modulations of the optical signal intensity are achieved. The numerical simulation results are in line with the experimental data. Based on this principle, next-generation all-optical storage and computing devices that simulate the properties of biological synapses and neurons can be developed. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00036951
Volume :
119
Issue :
8
Database :
Academic Search Index
Journal :
Applied Physics Letters
Publication Type :
Academic Journal
Accession number :
152124037
Full Text :
https://doi.org/10.1063/5.0063349