ArticleCommunications physics2025
Monolithic silicon nitride electro-optic modulator enabled by optically-assisted poling.
Article in Communications physics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Sustained poling-induced second-order optical nonlinearity in sodium-doped amorphous niobium oxide waveguides.Scientific reports · 2026Article
- Emerging Trends in Thermo-Optic and Electro-Optic Materials for Tunable Photonic Devices.Materials (Basel, Switzerland) · 2025Review
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3 authors.
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Abstract
Electro-optic (EO) modulation is a key functionality to have on-chip. However, achieving a notable linear EO effect in stoichiometric silicon nitride has been a persistent challenge due to the material's intrinsic properties. Recent advancements revealed that the displacement of thermally excited charge carriers under a high electric field induces a second-order nonlinearity in silicon nitride, thus enabling the linear EO effect in this platform regardless of the material's inversion symmetry. In this work, we introduce optically-assisted poling of a silicon nitride microring resonator, removing the need for high-temperature processing of the device. The optical stimulation of charges avoids the technical constraints due to elevated temperature. By optimizing the poling process, we experimentally obtain a long-term effective second-order nonlinearity
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