Photon Conversion in Thin-film Lithium Niobate Nanowaveguides: A Noise Analysis
arXiv:2102.07044 · doi:10.1364/JOSAB.425318
Abstract
Wavelength transduction of single-photon signals is indispensable to networked quantum applications, particularly those incorporating quantum memories. Lithium niobate nanophotonic devices have demonstrated favorable linear, nonlinear, and electro-optical properties to deliver this crucial function while offering superiror efficiency, integrability, and scalability. Yet, their quantum noise level--an crucial metric for any single-photon based application--has yet to be understood. In this work, we report the first study with the focus on telecom to near-visible conversion driven by a telecom pump of small detuning, for practical considerations in distributed quantum processing over fiber networks. Our results find the noise level to be on the order of photons per time-frequency mode for high conversion, allowing faithful pulsed operations. Through carefully analyzing the origins of such noise and each's dependence on the pump power and wavelength detuning, we have also identified a formula for noise suppression to photons per mode. Our results assert a viable, low-cost, and modular approach to networked quantum processing and beyond using lithium niobate nanophotonics.
References in corpus (17)
- Integrated photonics on thin-film lithium niobate
- Microwave photonics with superconducting quantum circuits
- Ultrahigh-efficiency second-harmonic generation in nanophotonic PPLN waveguides
- Coherent optical wavelength conversion via cavity-optomechanics
- Entangled photon-pair generation in periodically-poled thin-film lithium niobate waveguides
- Efficient quantum memory for single photon polarization qubits
- Electronically Programmable Photonic Molecule
- Ultra-bright Quantum Photon Sources on Chip
- Highly-Efficient Quantum Memory for Polarization Qubits in a Spatially-Multiplexed Cold Atomic Ensemble
- Quantum frequency conversion to telecom of single photons from a nitrogen-vacancy center in diamond
- Mitigating photorefractive effect in thin-filmlithium niobate microring resonators
- Ultralow noise up-conversion detector and spectrometer at telecom band
- Multimode theory of measurement-induced non-Gaussian operation on wideband squeezed light
- Quantum frequency conversion of memory-compatible single photons from 606 nm to the telecom C-band
- Ultra-efficient and highly-tunable second-harmonic generation in Z-cut periodically poled lithium niobate nanowaveguides
- Epitaxial niobium nitride superconducting nanowire single-photon detectors
- Correlated photon pair generation in low-loss double-stripe silicon nitride waveguides