Experimental demonstration of bandwidth enhancement in photonic time delay reservoir computing

Time delay reservoir computing (TDRC) using semiconductor lasers (SLs) has proven to be a promising photonic analog approach for information processing. One appealing property is that SLs subject to delayed optical feedback and external optical injection, allow tuning the response bandwidth by chang...

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Bibliographic Details
Published in:arXiv.org 2023-02
Main Authors: Estebanez, Irene, Argyris, Apostolos, Fischer, Ingo
Format: Article
Language:English
Subjects:
Bandwidths
Computing time
Data processing
Optical feedback
Optical properties
Photonics
Semiconductor lasers
Time lag
Online Access:Get full text
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Summary:Time delay reservoir computing (TDRC) using semiconductor lasers (SLs) has proven to be a promising photonic analog approach for information processing. One appealing property is that SLs subject to delayed optical feedback and external optical injection, allow tuning the response bandwidth by changing the level of optical injection. Here we use strong optical injection, thereby expanding the SL's modulation response up to tens of GHz. Performing a nonlinear time series prediction task, we demonstrate experimentally that for appropriate operating conditions, our TDRC system can operate with sampling times as small as 11.72 ps, without sacrificing computational performance.
ISSN:2331-8422
DOI:10.48550/arxiv.2301.04573