Integrated sub-terahertz cavity electro-optic transduction
- URL: http://arxiv.org/abs/2504.01920v1
- Date: Wed, 02 Apr 2025 17:29:53 GMT
- Title: Integrated sub-terahertz cavity electro-optic transduction
- Authors: Kevin K. S. Multani, Jason F. Herrmann, Emilio A. Nanni, Amir H. Safavi-Naeini,
- Abstract summary: We demonstrate an integrated triply-resonant, superconducting electro-optic transducer.<n>Our work paves the way for further advancements in resonant electro-optic technologies operating at sub-THz frequencies.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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 $\eta_{\text{OE}}\approx 0.82\times 10^{-6}$ and an average single-photon electro-optic interaction rate of $g_0/2\pi\approx 0.7$ 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.
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