Journal
OPTICS EXPRESS
Volume 28, Issue 3, Pages 3086-3096Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.382556
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Funding
- Horizon 2020 Framework Programme [688579, 780848]
- Belgian Federal Science Policy Office [IAP P7-35]
- Herculesstichting
- Vrije Universiteit Brussel
- Fonds Wetenschappelijk Onderzoek [G006020N, G024715N, G028618N, G029519N]
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Photonic delay-based reservoir computing (RC) has gained considerable attention lately, as it allows for simple technological implementations of the RC concept that can operate at high speed. In this paper, we discuss a practical, compact and robust implementation of photonic delay-based RC, by integrating a laser and a 5.4 cm delay line on an InP photonic integrated circuit. We demonstrate the operation of this chip with 23 nodes at a speed of 0.87 GSa/s, showing performances that is similar to previous non-integrated delay-based setups. We also investigate two other post-processing methods to obtain more nodes in the output layer. We show that these methods improve the performance drastically, without compromising the computation speed. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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