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A topological photonic ring-resonator for on-chip channel filters

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 نشر من قبل Xuetao Gan Prof. Dr.
 تاريخ النشر 2021
  مجال البحث فيزياء
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A topologically protected ring-resonator formed in valley photonic crystals is proposed and fabricated on a silicon slab. The unidirectional transmission and robustness against structure defects of its resonant modes are illustrated. Coupled with topological waveguides, the topological ring is functioned as notch and channel-drop filters. The work opens up a new avenue for developing advanced chip-integrated photonic circuits with attributes of topological photonics.



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