Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Integrated Photonic FFT for Optical Convolutions towards Efficient and
  High-Speed Neural Networks   The technologically-relevant task of feature extraction from data performed
in deep-learning systems is routinely accomplished as repeated fast Fourier
transforms (FFT) electronically in prevalent domain-specific architectures such
as in graphics processing units (GPUs). However, electronics systems are
limited with respect to power dissipation and delay, both, due to wire-charging
challenges related to interconnect capacitance. Here we present a silicon
photonics-based architecture for convolutional neural networks that harnesses
the phase property of light to perform FFTs efficiently by executing the
convolution as a multiplication in the Fourier-domain. The algorithmic
executing time is determined by the time-of-flight of the signal through this
photonic reconfigurable passive FFT filter circuit and is on the order of 10s
of picosecond. A sensitivity analysis shows that this optical processor must be
thermally phase stabilized corresponding to a few degrees. Furthermore, we find
that for a small sample number, the obtainable number of convolutions per
{time-power-chip area) outperforms GPUs by about 2 orders of magnitude. Lastly,
we show that, conceptually, the optical FFT and convolution-processing
performance is indeed directly linked to optoelectronic device-level, and
improvements in plasmonics, metamaterials or nanophotonics are fueling next
generation densely interconnected intelligent photonic circuits with relevance
for edge-computing 5G networks.

9
The categories of this paper are: nlin
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg