Topological all-optical logic gates based on two-dimensional photonic crystals | Zendy

Lu He | Zendy; W. X. Zhang | Zendy; X. D. Zhang | Zendy

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Topological all-optical logic gates based on two-dimensional photonic crystals

Author(s) -

Lu He,

W. X. Zhang,

X. D. Zhang

Publication year - 2019

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.27.025841

Subject(s) - xnor gate , logic gate , nand gate , nand logic , nor logic , photonic crystal , photonic integrated circuit , photonics , xor gate , and gate , electronic circuit , and or invert , optical computing , topology (electrical circuits) , pass transistor logic , or gate , computer science , physics , optics , logic family , logic synthesis , digital electronics , algorithm , engineering , electrical engineering , quantum mechanics

In this work, we report the design of topological filter and all-optical logic gates based on two-dimensional photonic crystals with robust edge states. All major logic gates, including OR, AND, NOT, NOR, XOR, XNOR, and NAND, are suitably designed by using the linear interference approach. Moreover, numerical simulations show that our designed all-optical logic devices can always work well even if significant disorders exist. It is expected that such robust and compact logic devices have potential applications in future photonic integrated circuits.

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