Realization of all-optical higher-order spatial differentiators based on cascaded operations

yichang Shou, Yan Wang, Lili Miao, Shizhen Chen & Hailu Luo
Cascaded operations play an important role in traditional electronic computing systems for the realization of advanced strategies. Here, we introduce the idea of cascaded operations into all-optical spatial analog computing. The single function of the first-order operation is difficult to meet the requirements of practical applications in image recognition. The all-optical second-order spatial differentiators are implemented by cascading two first-order differential operation units, and the image edge detection of amplitude and phase objects are demonstrated....
1 citation reported since publication in 2022.
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