Optoelectronic Demonstration of the Nonlinear Activation Module for Optical Neural Networks

In this letter, we experimentally demonstrated the viability of the optoelectronic nonlinear activation module in optical neural networks. By adopting the beam splitter, photo-diode, electronic processing unit and tunable attenuator, nonlinear activation function ReLU which is widely used in the sta...

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Bibliographic Details
Published in:IEEE photonics technology letters 2025-01, Vol.37 (2), p.109-112
Main Authors: Zang, Yubin, Li, Simin, Hua, Boyu, Lin, Zhipeng, Zhang, Fangzheng, Zhang, Zuxing
Format: Article
Language:English
Subjects:
Adaptive optics
Modules
Neural networks
Nonlinear activation module
Optical attenuators
Optical computing
Optical films
Optical imaging
Optical materials
Optical network units
optical neural networks
Optical pulses
Optoelectronics
tunable attenuator
Voltage
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Summary:In this letter, we experimentally demonstrated the viability of the optoelectronic nonlinear activation module in optical neural networks. By adopting the beam splitter, photo-diode, electronic processing unit and tunable attenuator, nonlinear activation function ReLU which is widely used in the state of the art neural networks can be implemented in an optoelectronic way. Compared with other optical and optoelectronic implementations of nonlinear activation function, this method has advantages in expanses and complexity. This method also has potential to be applied into multiple types of optical neural networks to further increase the prediction accuracy.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2024.3517159