A programmable platform for photonic topological insulators

Abstract: In the past decade, the field of topological photonics has gained prominence exhibiting consequential effects in quantum information science, lasing, and large-scale integrated photonics. Many of these topological systems exhibit protected states, enabling robust travel along their edges without being affected by defects or disorder. Nonetheless, conventional topological structures often lack the flexibility for implementing different topological models and for tunability postfabrication. Here, we present a method to implement magnetic-like Hamiltonians supporting topologically protected edge modes on a general-purpose programmable silicon photonic mesh of interferometers. By reconfiguring the lattice onto a two-dimensional mesh of ring resonators with carefully tuned couplings, we show robust edge state transport even in the presence of manufacturing tolerance defects. We showcase the system’s reconfigurability by demonstrating topological insulator lattices of different sizes and shapes and introduce edge and bulk defects to underscore the robustness of the photonic edge states. Our study paves the way for the implementation of photonic topological insulators on general-purpose programmable photonics platforms.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
A programmable platform for photonic topological insulators ; volume:14 ; number:3 ; year:2025 ; pages:367-373 ; extent:7
Nanophotonics ; 14, Heft 3 (2025), 367-373 (gesamt 7)

Creator
Love, Stuart
Idjadi, Mohamad Hossein
Ashtiani, Farshid
Lee, Howard (Ho-Wai)
Blanco-Redondo, Andrea

DOI
10.1515/nanoph-2024-0577
URN
urn:nbn:de:101:1-2502190920443.916805981359
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
15.08.2025, 7:25 AM CEST

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Associated

  • Love, Stuart
  • Idjadi, Mohamad Hossein
  • Ashtiani, Farshid
  • Lee, Howard (Ho-Wai)
  • Blanco-Redondo, Andrea

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