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<p>Thin-film Lithium Niobate on insulator is a promising material platform for contemporary photonic integrated devices owing to its large linear and nonlinear responses along with an exceptionally broad transmission window. We explore this material in the context of topological photonics to achieve high-speed and high-performance integrated waveguides for quantum photonic applications. In this paper, we present a Silicon Nitride-loaded Lithium Niobate waveguide that exhibits a topology-protected interface state of light. Our simulated results show a high <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(\:Q\)</EquationSource> </InlineEquation>-factor, a large bandwidth, and a good electro-optic overlap factor suitable for high-speed switching and robust routing in photonic and quantum circuits.</p>

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Topological waveguide on thin-film lithium niobate platform

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月24日

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  • Piyali Biswas,
  • Heejin Choi,
  • Chang-Won Lee

摘要

Thin-film Lithium Niobate on insulator is a promising material platform for contemporary photonic integrated devices owing to its large linear and nonlinear responses along with an exceptionally broad transmission window. We explore this material in the context of topological photonics to achieve high-speed and high-performance integrated waveguides for quantum photonic applications. In this paper, we present a Silicon Nitride-loaded Lithium Niobate waveguide that exhibits a topology-protected interface state of light. Our simulated results show a high \(\:Q\) -factor, a large bandwidth, and a good electro-optic overlap factor suitable for high-speed switching and robust routing in photonic and quantum circuits.