Parallel photonic information processing at gigabyte per second data rates using transient states

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作者
Daniel Brunner
Miguel C. Soriano
Claudio R. Mirasso
Ingo Fischer
机构
[1] Instituto de Física Interdisciplinar y Sistemas Complejos,
[2] IFISC (UIB-CSIC),undefined
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Nature Communications | / 4卷
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摘要
The increasing demands on information processing require novel computational concepts and true parallelism. Nevertheless, hardware realizations of unconventional computing approaches never exceeded a marginal existence. While the application of optics in super-computing receives reawakened interest, new concepts, partly neuro-inspired, are being considered and developed. Here we experimentally demonstrate the potential of a simple photonic architecture to process information at unprecedented data rates, implementing a learning-based approach. A semiconductor laser subject to delayed self-feedback and optical data injection is employed to solve computationally hard tasks. We demonstrate simultaneous spoken digit and speaker recognition and chaotic time-series prediction at data rates beyond 1 Gbyte/s. We identify all digits with very low classification errors and perform chaotic time-series prediction with 10% error. Our approach bridges the areas of photonic information processing, cognitive and information science.
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