Realization of all-optical higher-order spatial differentiators based on cascaded operations
| Autor: | Shou, Yichang, Wang, Yan, Miao, Lili, Chen, Shizhen, Luo, Hailu |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OL.473988 |
| Popis: | 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 firstorder 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. Our scheme provides a possible pathway towards the development of compact multifunctional differentiators and advanced optical analog computing networks. Comment: 11 pages, 4 figures |
| Databáze: | arXiv |
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