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https://hdl.handle.net/20.500.11851/8640
Title: | Inverse Design of Ultra-Compact Photonic Gates for All-Optical Logic Operations | Authors: | Neşeli, Berkay Yılmaz, Yusuf Abdülaziz Kurt, Hamza Turduev, Mirbek |
Keywords: | inverse design all optical logic gates optical power splitting optimization nanophotonics Wave-Guides |
Publisher: | IOP Publishing Ltd | Source: | Neşeli, B., Yilmaz, Y. A., Kurt, H., & Turduev, M. (2022). Inverse design of ultra-compact photonic gates for all-optical logic operations. Journal of Physics D: Applied Physics, 55(21), 215107. | Abstract: | Logic gates have great importance in realization of rapid data transmission as well as low loss transfers. In this paper, a multi-objective inverse-design approach is implemented by using objective-first algorithm to design optical AND, OR, NAND and NOT logic gates on Si-platform at the design wavelength of 1.30 mu m. For all gates, the design area is fixed to 2.24 mu m x 2.24 mu m. The optical logic '1' output is accepted to be optical power values greater than 0.8 times of the input optical power. By implementing a Bias waveguide as well as two input ports, we made it possible to achieve logic '1' output for logic operations having no inputs such as '0 NAND 0 = 1' and '0 NOT = 1'. We binarized the proposed logic gates, and then numerically analyzed them by using finite-difference time-domain method. Proposed AND gate yields 1.20 times of input power for '1 AND 1 = 1' logic operation and highest logic '0' is obtained for logic operation of '1 AND 0 = 0' as 0.40 times of the input power at the operating wavelength. It is also observed that proposed logic gates can operate not only at the design wavelength of 1.30 mu m but also at broad wavelength regions as well. Finally, we demonstrate that it is possible to carry out complex logic operations by combining the proposed logic AND, OR and NAND gates to construct an XOR gate in the same platform. | URI: | https://doi.org/10.1088/1361-6463/ac5660 https://hdl.handle.net/20.500.11851/8640 |
ISSN: | 0022-3727 1361-6463 |
Appears in Collections: | Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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