Electrically-controlled suppression of Rayleigh backscattering in an integrated photonic circuit
Abstract: Undesirable light scattering is a fundamental cause for photon loss in nanophotonics. Rayleigh backscattering can be particularly difficult to avoid in wave-guiding systems and arises from both material defects and geometric defects at the subwavelength scale. It has recently been shown that systems exhibiting chiral dispersion due to broken time-reversal symmetry (TRS) can naturally mitigate Rayleigh backscattering, yet this has never been explored in integrated photonics. Here we demonstrate the dynamic suppression of disorder-induced Rayleigh backscattering in integrated photonics even when defects are clearly present. Our experiments are performed using lithium niobate on insulator resonators in which TRS is broken through an electrically-driven acousto-optic interaction. We experimentally observe near-complete suppression of Rayleigh backscattering within the resonator by measuring the optical states and through direct measurements of the back-scattered light. We additionally provide a new and intuitive generalization argument that explains this suppression of backscattering as a form of topological protection in synthetic space.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Electrically-controlled suppression of Rayleigh backscattering in an integrated photonic circuit ; volume:13 ; number:2 ; year:2024 ; pages:173-181 ; extent:9
Nanophotonics ; 13, Heft 2 (2024), 173-181 (gesamt 9)
- Creator
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Örsel, Oğulcan E.
Noh, Jiho
Bahl, Gaurav
- DOI
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10.1515/nanoph-2023-0431
- URN
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urn:nbn:de:101:1-2024012513240573168746
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:35 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Örsel, Oğulcan E.
- Noh, Jiho
- Bahl, Gaurav
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