Nonlinear Electro-Optic Visible Photonic Circuits for Solid-State Quantum Defects

• URL: http://arxiv.org/abs/2603.21751v1
• Date: Mon, 23 Mar 2026 09:45:28 GMT
• Title: Nonlinear Electro-Optic Visible Photonic Circuits for Solid-State Quantum Defects
• Abstract summary: monolithic thin-film lithium niobate (TFLN) platform integrates periodically poled frequency conversion with GHz-bandwidth electro-optic (EO) switching.<n>The device delivers off-chip green-light power exceeding 1 mW with an extinction ratio (ER) of 42.2 dB.<n>By unifying sufficient nonlinear light generation with high-speed active manipulation, this platform establishes a scalable framework for the realization of high-rate quantum communication nodes.
• Score: 9.563137229359553
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Integrated visible photonic engines for solid-state quantum defects provide a foundation for scalable quantum networks. While miniaturization is advancing, active manipulation remains limited by the difficulty of achieving simultaneous milliwatt-scale visible light generation and high-contrast modulation. Despite extensive efforts, the concurrent chip-scale realization of nonlinear frequency conversion and fast temporal gating for high-fidelity quantum control has remained elusive. Here, we demonstrate a monolithic thin-film lithium niobate (TFLN) platform integrating periodically poled frequency conversion with GHz-bandwidth electro-optic (EO) switching. The device delivers off-chip green-light power exceeding 1 mW with an extinction ratio (ER) of 42.2 dB, enabling coherent spin control and time-resolved lifetime measurements of individual nitrogen-vacancy (NV) centers in diamond through nanosecond gating. System performance is validated through pulsed optically detected magnetic resonance (ODMR), Rabi oscillations, and Ramsey interference, supported by time-tagged photon counting with nanosecond resolution. By unifying sufficient nonlinear light generation with high-speed active manipulation, this platform establishes a scalable framework for the realization of high-rate quantum communication nodes.

Related papers

• Stable, bidirectional electro-optic transduction in thin film lithium tantalate [0.0]
  We demonstrate the first integrated electro-optic microwave-optical transducers realized in thin-film lithium tantalate (T kHz)<n>We fabricate superconducting microwave resonators coupled to tunable photonic-molecule optical resonators using wafer-scale deep ultraviolet lithography.<n>These results establish T as a scalable and robust electro-optic platform for future quantum interconnects and modular quantum processors.
  arXiv  Detail & Related papers  (2026-06-10T22:24:27Z)
• Integrated polarization-entangled photon source for wavelength-multiplexed quantum networks [49.82426139329382]
  We present a simple yet high-performance on-chip polarization-entangled photon-pair source on thin-film lithium niobate (TFLN)<n>Our device employs dual quasi-phase matching (D-QPM) that sequentially supports type-0 and type-I spontaneous parametric down-conversion in a single nanophotonic waveguide.<n>We realize wavelength-multiplexed entanglement distribution in a four-user quantum network deployed over metropolitan fiber links up to 50 km.
  arXiv  Detail & Related papers  (2025-11-27T18:30:01Z)
• Deterministic single-photon source with on-chip 5.6 GHz acoustic clock [59.38889796913807]
  We demonstrate triggering of a quantum dot (QD) single photon emission using dynamic Purcell effect induced at a frequency of several GHz by acoustic strain.<n>InAs QDs are integrated in a hybrid photon-phonon patterned microcavity.
  arXiv  Detail & Related papers  (2025-10-26T20:43:00Z)
• Experimental entanglement swapping through single-photon $χ^{(2)}$ nonlinearity [0.3747501273234419]
  We demonstrate an entanglement swapping using sum-frequency generation between single photons in a $chi(2)$-nonlinear optical waveguide.<n>We show that a high signal-to-noise ratio(SNR), stable sum-frequency-generation-based entanglement heralder with an ultralow-dark-count superconducting single-photon detector can satisfy the unprecedented SNR requirement.<n>Our results confirm a lower bound 0.770(76) for the swapped state's fidelity, surpassing the classical limit of 0.5 successfully.
  arXiv  Detail & Related papers  (2024-11-26T09:44:50Z)
• All-optical modulation with single-photons using electron avalanche [66.27103948750306]
  We demonstrate all-optical modulation enabled by electron avalanche process in silicon.<n>Our approach opens the possibility of gigahertz-speed, and potentially even faster, optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• Hyper-entanglement between pulse modes and frequency bins [101.18253437732933]
  Hyper-entanglement between two or more photonic degrees of freedom (DOF) can enhance and enable new quantum protocols. We demonstrate the generation of photon pairs hyper-entangled between pulse modes and frequency bins.
  arXiv  Detail & Related papers  (2023-04-24T15:43:08Z)
• On-chip quantum information processing with distinguishable photons [55.41644538483948]
  Multi-photon interference is at the heart of photonic quantum technologies. Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources. We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
  arXiv  Detail & Related papers  (2022-10-14T18:16:49Z)
• High-efficiency microwave-optical quantum transduction based on a cavity electro-optic superconducting system with long coherence time [52.77024349608834]
  Frequency conversion between microwave and optical photons is a key enabling technology to create links between superconducting quantum processors. We propose a microwave-optical platform based on long-coherence-time superconducting radio-frequency (SRF) cavities. We show that the fidelity of heralded entanglement generation between two remote quantum systems is enhanced by the low microwave losses.
  arXiv  Detail & Related papers  (2022-06-30T17:57:37Z)
• Temporal trapping: a route to strong coupling and deterministic optical quantum computation [0.0]
  We show that temporally trapped ultrashort pulses could achieve strong coupling on near-term nonlinear nanophotonic platforms. Our results highlight the potential of ultrafast nonlinear optics to become the first scalable, high-bandwidth, and room-temperature platform that achieves a strong coupling.
  arXiv  Detail & Related papers  (2022-03-22T17:25:57Z)
• Spectral control of nonclassical light using an integrated thin-film lithium niobate modulator [5.119503410288866]
  We demonstrate frequency shifting and bandwidth compression of nonclassical light using an integrated thin-film lithium niobate (TFLN) phase modulator. We achieve record-high electro-optic frequency shearing of telecom single photons over terahertz range. Our results showcase the viability and promise of on-chip quantum spectral control for scalable photonic quantum information processing.
  arXiv  Detail & Related papers  (2021-12-18T16:38:00Z)
• High-Speed Tunable Microcavities Coupled to Rare-Earth Quantum Emitters [0.0]
  Lithium niobate on insulator (LNOI) is an emerging platform for on-chip photonics. We incorporate single rare-earth ions (REI) quantum emitters in electro-optical tunable lithium niobite (LN) thin films. We demonstrate control of LN microcavities coupled to REI over a frequency range of 160 GHz with 5 mus switching speed.
  arXiv  Detail & Related papers  (2021-04-01T10:49:00Z)
• Single-photon detection and cryogenic reconfigurability in Lithium Niobate nanophotonic circuits [0.13854111346209866]
  Lithium-Niobate-On-Insulator (LNOI) is emerging as a promising platform for integrated quantum photonic technologies. Our results provide blueprints for implementing complex quantum photonic devices on the LNOI platform.
  arXiv  Detail & Related papers  (2021-03-19T18:13:52Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.