Open AccessTopological all-optical logic gates based on two-dimensional photonic crystals
Author(s) -
Lingjuan 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 , xor gate , topology (electrical circuits) , photonic integrated circuit , pass transistor logic , and or invert , photonics , and gate , electronic circuit , optical computing , computer science , optics , physics , 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.