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Influence of the input signal’s phase modulation on the performance of optical delay-based reservoir computing using semiconductor lasers
Tijdschriftbijdrage - Tijdschriftartikel
In photonic reservoir computing, semiconductor lasers with delayed feedback have shown to be suited to efficiently solve difficult and time-consuming problems. The input data in this system is often optically injected into the reservoir. Based on numerical simulations, we show that the performance depends heavily on the way that information is encoded in this optical injection signal. In our simulations we compare different input configurations consisting of Mach-Zehnder modulators and phase modulators for injecting the signal. We observe far better performance on a one-step ahead time-series prediction task when modulating the phase of the injected signal rather than only modulating its amplitude.
Tijdschrift: Opt. Express
ISSN: 1094-4087
Issue: 8
Volume: 30
Pagina's: 13434-13446
Jaar van publicatie:2022
Toegankelijkheid:Open