Journal
OPTICS EXPRESS
Volume 22, Issue 25, Pages 31356-31370Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.22.031356
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Funding
- National Basic Research Program of China [2011CBA00608, 2011CBA00303, 2011CB301803, 2010CB327405]
- National Natural Science Foundation of China [61036011, 61321004]
- Tsinghua University Initiative Scientific Research Program [20131089382]
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An integrated photonic reservoir computing (RC) based on hierarchical time-multiplexing structure is proposed by numerical simulations. A micro-ring array (MRA) is employed as a typical time delay implementation of RC. At the output port of the MRA, a secondary time-multiplexing is achieved by multi-mode interference (MMI) splitter and delay line array. This hierarchical time-multiplexing structure can ensure a large reservoir size with fast processing speed. Simulation results indicate that the proposed RC system yields better performance than previously reported ones. The achieved normalized mean square error between the system output and target sequence are 0.5% and 2.7% for signal classification and chaotic time series prediction, respectively, while the sample rate is as high as 1.3Gbps. (C) 2014 Optical Society of America
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