title: Experimental demonstration of reservoir computing on a silicon photonics chip.
abstract: In today's age, companies employ machine learning to extract information from large quantities of data. One of those techniques, reservoir computing (RC), is a decade old and has achieved state-of-the-art performance for processing sequential data. Dedicated hardware realizations of RC could enable speed gains and power savings. Here we propose the first integrated passive silicon photonics reservoir. We demonstrate experimentally and through simulations that, thanks to the RC paradigm, this generic chip can be used to perform arbitrary Boolean logic operations with memory as well as 5-bit header recognition up to 12.5 Gbit s(-1), without power consumption in the reservoir. It can also perform isolated spoken digit recognition. Our realization exploits optical phase for computing. It is scalable to larger networks and much higher bitrates, up to speeds >100 Gbit s(-1). These results pave the way for the application of integrated photonic RC for a wide range of applications.
authors.affiliation: 1] Department of Information Technology, Photonics Research Group, Ghent University-Interuniversity Microelectronics Center, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium [2] Center for Nano-and Biophotonics (NB-Photonics), Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Kristof
authors.initials: K
authors.lastname: Vandoorne
authors.affiliation: 1] Department of Information Technology, Photonics Research Group, Ghent University-Interuniversity Microelectronics Center, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium [2] Center for Nano-and Biophotonics (NB-Photonics), Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Pauline
authors.initials: P
authors.lastname: Mechet
authors.affiliation: 1] Department of Information Technology, Photonics Research Group, Ghent University-Interuniversity Microelectronics Center, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium [2] Center for Nano-and Biophotonics (NB-Photonics), Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Thomas
authors.initials: T
authors.lastname: Van Vaerenbergh
authors.affiliation: 1] Department of Information Technology, Photonics Research Group, Ghent University-Interuniversity Microelectronics Center, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium [2] Center for Nano-and Biophotonics (NB-Photonics), Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Martin
authors.initials: M
authors.lastname: Fiers
authors.affiliation: 1] Department of Information Technology, Photonics Research Group, Ghent University-Interuniversity Microelectronics Center, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium [2] Center for Nano-and Biophotonics (NB-Photonics), Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Geert
authors.initials: G
authors.lastname: Morthier
authors.affiliation: Computer Systems Laboratory, Department of Electronics and Information Systems, Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: David
authors.initials: D
authors.lastname: Verstraeten
authors.affiliation: Computer Systems Laboratory, Department of Electronics and Information Systems, Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Schrauwen
authors.affiliation: Computer Systems Laboratory, Department of Electronics and Information Systems, Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Joni
authors.initials: J
authors.lastname: Dambre
authors.affiliation: 1] Department of Information Technology, Photonics Research Group, Ghent University-Interuniversity Microelectronics Center, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium [2] Center for Nano-and Biophotonics (NB-Photonics), Ghent University, Sint-Pietersnieuwstraat 41, Gent 9000, Belgium.
authors.forename: Peter
authors.initials: P
authors.lastname: Bienstman