Accelerating photonic computing by bandwidth enhancement of a time-delay reservoir
| Autor: | Ingo Fischer, Apostolos Argyris, Irene Estébanez, Janek Schwind |
|---|---|
| Přispěvatelé: | Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Govern de les Illes Balears, Estébanez, Irene, Fischer, Ingo, Argyris, Apostolos, Estébanez, Irene [0000-0002-0130-8774], Fischer, Ingo [0000-0003-1881-9842], Argyris, Apostolos [0000-0003-2847-7719] |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
QC1-999
Optical computing 02 engineering and technology semiconductor lasers 020210 optoelectronics & photonics 0202 electrical engineering electronic engineering information engineering Bandwidth (computing) Optical feedback bandwidth enhancement Bandwidth enhancement Electrical and Electronic Engineering optical injection Semiconductor lasers business.industry Physics 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Photonic reservoir computing Optical injection photonic reservoir computing 0210 nano-technology Telecommunications business optical feedback Biotechnology |
| Zdroj: | Nanophotonics, Vol 9, Iss 13, Pp 4163-4171 (2020) Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2192-8614 2192-8606 |
| Popis: | Semiconductor lasers (SLs) that are subject to delayed optical feedback and external optical injection have been demonstrated to perform information processing using the photonic reservoir computing paradigm. Optical injection or optical feedback can under some conditions induce bandwidth-enhanced operation, expanding their modulation response up to several tens of GHz. However, these conditions may not always result in the best performance for computational tasks, since the dynamical and nonlinear properties of the reservoir might change as well. Here we show that by using strong optical injection we can obtain an increased frequency response and a significant acceleration in the information processing capability of this nonlinear system, without loss of performance. Specifically, we demonstrate numerically that the sampling time of the photonic reservoir can be as small as 12 ps while preserving the same computational performance when compared to a much slower sampling rate. We also show that strong optical injection expands the reservoir’s operating conditions for which we obtain improved task performance. The latter is validated experimentally for larger sampling times of 100 ps. The above attributes are demonstrated in a coherent optical communication decoding task. This work was supported by MINECO (Spain), through project TEC2016-80063-C3 (AEI/FEDER, UE) and by the Spanish State Research Agency, through the Severo Ochoa and María de Maeztu Program for Centers and Units of Excellence in R&D (MDM-2017-0711). The work of Dr. A. Argyris was supported by the Conselleria d’Innovació, Recerca i Turisme del Govern de les Illes Balears and the European Social Fund. |
| Databáze: | OpenAIRE |
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