Abstract

We propose a concise hardware architecture supporting efficient exclusive OR (XOR) and exclusive NOR (XNOR) operations, by employing a single photonic spiking neuron based on a passive add-drop microring resonator (ADMRR). The threshold mechanism and inhibitory dynamics of the ADMRR-based spiking neuron are numerically discussed on the basis of the coupled mode theory. It is shown that a precise XOR operation in the ADMRR-based spiking neuron can be implemented by adjusting temporal differences within the inhibitory window. Additionally, within the same framework, the XNOR function can also be carried out by accumulating the input power over time to trigger an excitatory behavior. This work presents a novel, to the best of our knowledge, and pragmatic technique for optical neuromorphic computing and information processing utilizing passive devices.

© 2024 Optica Publishing Group

All-optical neuromorphic XOR operation with inhibitory dynamics of a single photonic spiking neuron based on a VCSEL-SA

Shuiying Xiang, Zhenxing Ren, Yahui Zhang, Ziwei Song, and Yue Hao
Opt. Lett. 45(5) 1104-1107 (2020)

All-optical synaptic neuron based on add-drop microring resonator with power-tunable auxiliary light

Qiang Zhang, Ning Jiang, Anran Li, Yiqun Zhang, Gang Hu, Yongsheng Cao, and Kun Qiu
Opt. Lett. 48(12) 3167-3170 (2023)

On-chip spiking neural networks based on add-drop ring microresonators and electrically reconfigurable phase-change material photonic switches

Qiang Zhang, Ning Jiang, Yiqun Zhang, Anran Li, Huanhuan Xiong, Gang Hu, Yongsheng Cao, and Kun Qiu
Photon. Res. 12(4) 755-766 (2024)

All-optical silicon microring spiking neuron

Jinlong Xiang, Yujia Zhang, Yaotian Zhao, Xuhan Guo, and Yikai Su
Photon. Res. 10(4) 939-946 (2022)

Experimental implementation of spike-based neuromorphic XOR operation based on polarization-mode competition in a single VCSOA

Shihao Zhao, Shuiying Xiang, Ziwei Song, Yahui Zhang, Xingyu Cao, Aijun Wen, and Yue Hao
Appl. Opt. 61(19) 5823-5830 (2022)