Ultrafast neuromorphic photonic image processing with a VCSEL neuron.
Ultrafast neuromorphic photonic image processing with a VCSEL neuron.
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DOI:
10.1038/s41598-022-08703-1
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发表时间:
2022-03-22
影响因子:
4.6
通讯作者:
Hurtado A
中科院分区:
文献类型:
--
作者:
Robertson J;Kirkland P;Alanis JA;Hejda M;Bueno J;Di Caterina G;Hurtado A
The ever-increasing demand for artificial intelligence (AI) systems is underlining a significant requirement for new, AI-optimised hardware. Neuromorphic (brain-like) processors are one highly-promising solution, with photonic-enabled realizations receiving increasing attention. Among these, approaches based upon vertical cavity surface emitting lasers (VCSELs) are attracting interest given their favourable attributes and mature technology. Here, we demonstrate a hardware-friendly neuromorphic photonic spike processor, using a single VCSEL, for all-optical image edge-feature detection. This exploits the ability of a VCSEL-based photonic neuron to integrate temporally-encoded pixel data at high speed; and fire fast (100 ps-long) optical spikes upon detecting desired image features. Furthermore, the photonic system is combined with a software-implemented spiking neural network yielding a full platform for complex image classification tasks. This work therefore highlights the potential of VCSEL-based platforms for novel, ultrafast, all-optical neuromorphic processors interfacing with current computation and communication systems for use in future light-enabled AI and computer vision functionalities.
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