Adding binary numbers with discrete solitons in waveguide arrays

Alaa Shaheen, Amaria Javed, U. Al Khawaja

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We present a design and protocol to add binary numbers using discrete solitons in waveguide arrays. We show that the nonlinear interaction between discrete solitons in waveguide arrays can be exploited to design half and full adders. By modulating the separation between waveguides and introducing control solitons, we achieve the performance of an XOR gate. We construct the half and full adders using the XOR gate together with the previously- designed OR and AND gates. To facilitate the experimental realization, we calculate the profile of separations between the waveguides that will lead to the performance of the XOR gate.

Original languageEnglish
Article number085107
JournalPhysica Scripta
Issue number8
Publication statusPublished - Aug 2020


  • Discrete solitons
  • Full Adder
  • Half Adder
  • waveguide arrays

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics


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