Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice

We propose a robust programmable photonic integrated circuit platform based on a 2D Floquet-Lieb topological lattice. Reconfigurable topological photonic lattices typically require creating topologically distinct domains to guide interface modes, which requires a large number of coupling elements to...

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Main Authors: Hanfa Song, Tyler J. Zimmerling, Vien Van
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10214213/
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author Hanfa Song
Tyler J. Zimmerling
Vien Van
author_facet Hanfa Song
Tyler J. Zimmerling
Vien Van
author_sort Hanfa Song
collection DOAJ
description We propose a robust programmable photonic integrated circuit platform based on a 2D Floquet-Lieb topological lattice. Reconfigurable topological photonic lattices typically require creating topologically distinct domains to guide interface modes, which requires a large number of coupling elements to be tuned and severely constraints the realizable circuit configurations. Here by taking advantage of the natural hopping sequence of light in the Floquet-Lieb microring lattice, we show that line defect modes and flat-band resonance modes can be excited by tuning only selective coupling elements, thus enabling efficient light steering and localization in the lattice interior. We show how basic circuit elements such as waveguide bends, splitters, combiners, and resonators, can be formed in the lattice, which can be used to construct general photonic integrated circuits. Compared to conventional topologically-trivial waveguide meshes, our topological photonic lattice requires fewer tuning elements while offering better tolerance to defects and random variations due to topological protection. The proposed topological lattice can thus provide an efficient and robust platform for implementing classical and quantum integrated photonic circuits.
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spelling doaj-art-1d498f44e7a94d5b82db5d54ae1ac5ce2025-08-20T03:33:04ZengIEEEIEEE Photonics Journal1943-06552023-01-011551710.1109/JPHOT.2023.330418810214213Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide LatticeHanfa Song0https://orcid.org/0000-0002-3281-256XTyler J. Zimmerling1https://orcid.org/0000-0003-4314-9852Vien Van2https://orcid.org/0000-0003-4778-5725Department of Electrical and Computer Engineering, University of Alberta, Edmonton, CanadaDepartment of Electrical and Computer Engineering, University of Alberta, Edmonton, CanadaDepartment of Electrical and Computer Engineering, University of Alberta, Edmonton, CanadaWe propose a robust programmable photonic integrated circuit platform based on a 2D Floquet-Lieb topological lattice. Reconfigurable topological photonic lattices typically require creating topologically distinct domains to guide interface modes, which requires a large number of coupling elements to be tuned and severely constraints the realizable circuit configurations. Here by taking advantage of the natural hopping sequence of light in the Floquet-Lieb microring lattice, we show that line defect modes and flat-band resonance modes can be excited by tuning only selective coupling elements, thus enabling efficient light steering and localization in the lattice interior. We show how basic circuit elements such as waveguide bends, splitters, combiners, and resonators, can be formed in the lattice, which can be used to construct general photonic integrated circuits. Compared to conventional topologically-trivial waveguide meshes, our topological photonic lattice requires fewer tuning elements while offering better tolerance to defects and random variations due to topological protection. The proposed topological lattice can thus provide an efficient and robust platform for implementing classical and quantum integrated photonic circuits.https://ieeexplore.ieee.org/document/10214213/Programmable photonic integrated circuitrobustnesstopological photonics
spellingShingle Hanfa Song
Tyler J. Zimmerling
Vien Van
Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice
IEEE Photonics Journal
Programmable photonic integrated circuit
robustness
topological photonics
title Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice
title_full Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice
title_fullStr Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice
title_full_unstemmed Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice
title_short Robust Programmable Photonic Circuits Based on a Floquet-Lieb Topological Waveguide Lattice
title_sort robust programmable photonic circuits based on a floquet lieb topological waveguide lattice
topic Programmable photonic integrated circuit
robustness
topological photonics
url https://ieeexplore.ieee.org/document/10214213/
work_keys_str_mv AT hanfasong robustprogrammablephotoniccircuitsbasedonafloquetliebtopologicalwaveguidelattice
AT tylerjzimmerling robustprogrammablephotoniccircuitsbasedonafloquetliebtopologicalwaveguidelattice
AT vienvan robustprogrammablephotoniccircuitsbasedonafloquetliebtopologicalwaveguidelattice