Bragg grating-based all-optical continuous two-dimensional force perceptron
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H Li, Z Wu, J Dai, X Yang, G Zhou…
… Science and Technology, 2024
iopscience.iop.org
In this paper, we propose a novel structure of a photonic two-dimensional force perceptron based on fiber Bragg gratings for the first time to demonstrate microforce detection and direction recognition in an all-optical transmission sensing platform. Silicone gel was used to encapsulate the Bragg gratings arranged in equilateral triangles with specific side lengths in a hollow cylindrical structure. The force stimulation is sensed by stress transfer ball located on top of the perceptron, and the force is transmitted to three Bragg gratings arranged in …
