神经形态工程学
材料科学
超细纤维
电致变色
光子学
光电子学
多模光纤
光纤
计算机科学
人工神经网络
电极
人工智能
电信
物理
复合材料
量子力学
作者
Hui Shi,Wang Bang-hu,Xiaohong Wang,Longzhen Qiu,Zheng Lu
标识
DOI:10.1021/acsami.2c20451
摘要
Optical synaptic devices possess great potential in both artificial intelligence and neuromorphic photonics. In this work, an optically readable electrochromic-based microfiber synaptic device was designed by the combination of a multimode fiber and an electrochromic device and using an external voltage to control the transmission of light in the fiber. The proposed synaptic device has the ability to imitate various basic functions of the biological synapses, such as synaptic plasticity, and paired-pulse facilitation (PPF), as well as the transition from short-term memory to long-term memory. Moreover, the proposed device decodes the output optical signal with the international Morse code to express the signal "HFUT" in two ways, and a 3 × 3 array composed of this device can simulate the perceptual learning process. The device can be easily prepared for a wide range of applications, and the incorporated microfibers can be replaced by planar optical waveguides, making it easy to be integrated into a more complex and versatile photonic neuromorphic system.
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