Integrated sub-terahertz cavity electro-optic transduction
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866912305987452928 |
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| author | Multani, Kevin K. S. Herrmann, Jason F. Nanni, Emilio A. Safavi-Naeini, Amir H. |
| author_facet | Multani, Kevin K. S. Herrmann, Jason F. Nanni, Emilio A. Safavi-Naeini, Amir H. |
| contents | Emerging communications and computing technologies will rely ever-more on expanding the useful radio frequency (RF) spectrum into the sub-THz and THz frequency range. Both classical and quantum applications would benefit from advancing integration and incorporation of sub-THz and electro-optic technologies into common devices, such as modulators. Here we demonstrate an integrated triply-resonant, superconducting electro-optic transducer. Our design incorporates an on-chip $107$ GHz sub-THz niobium titanium nitride superconducting resonator, modulating a thin-film lithium niobate optical racetrack resonator operating at telecom wavelengths. We observe a maximum photon transduction efficiency of $η_{\text{OE}}\approx 0.82\times 10^{-6}$ and an average single-photon electro-optic interaction rate of $g_0/2π\approx 0.7$ kHz. We also present a study and analysis of the challenges associated with the design of integrated sub-THz resonators and propose possible solutions to these challenges. Our work paves the way for further advancements in resonant electro-optic technologies operating at sub-THz frequencies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_01920 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Integrated sub-terahertz cavity electro-optic transduction Multani, Kevin K. S. Herrmann, Jason F. Nanni, Emilio A. Safavi-Naeini, Amir H. Optics Quantum Physics Emerging communications and computing technologies will rely ever-more on expanding the useful radio frequency (RF) spectrum into the sub-THz and THz frequency range. Both classical and quantum applications would benefit from advancing integration and incorporation of sub-THz and electro-optic technologies into common devices, such as modulators. Here we demonstrate an integrated triply-resonant, superconducting electro-optic transducer. Our design incorporates an on-chip $107$ GHz sub-THz niobium titanium nitride superconducting resonator, modulating a thin-film lithium niobate optical racetrack resonator operating at telecom wavelengths. We observe a maximum photon transduction efficiency of $η_{\text{OE}}\approx 0.82\times 10^{-6}$ and an average single-photon electro-optic interaction rate of $g_0/2π\approx 0.7$ kHz. We also present a study and analysis of the challenges associated with the design of integrated sub-THz resonators and propose possible solutions to these challenges. Our work paves the way for further advancements in resonant electro-optic technologies operating at sub-THz frequencies. |
| title | Integrated sub-terahertz cavity electro-optic transduction |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2504.01920 |