A5101465558- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Photorefractive and Nonlinear Optics
- Mechanical and Optical Resonators
- Quantum optics and atomic interactions
- Optical Network Technologies
- Soil Mechanics and Vehicle Dynamics
- Agricultural Engineering and Mechanization
- Advancements in Battery Materials
- Spectroscopy and Laser Applications
- Advanced Battery Materials and Technologies
- Advanced Battery Technologies Research
- Magnetic and Electromagnetic Effects
- Advanced Photonic Communication Systems
- Agronomic Practices and Intercropping Systems
- Electrical Fault Detection and Protection
- Atmospheric Ozone and Climate
- Quantum Information and Cryptography
- Distributed and Parallel Computing Systems
- Molecular Junctions and Nanostructures
- Drilling and Well Engineering
- Soil Management and Crop Yield
- Semiconductor Lasers and Optical Devices
- Atmospheric and Environmental Gas Dynamics
- Infrastructure Maintenance and Monitoring
Stevens Institute of Technology
2018-2024
Sichuan Agricultural University
2023-2024
Southwest University
2022
Xidian University
2018
Huazhong University of Science and Technology
2002
We demonstrate quasi-phase-matched frequency conversion in a chip-integrated lithium niobate microring resonator, whose normalized efficiency reaches 230,000%/W or 10−6 per single photon.
Quantum photon sources of high rate, brightness, and purity are increasingly desirable as quantum information systems quickly scaled up applied to many fields. Using a periodically poled lithium niobate microresonator on chip, we demonstrate photon-pair generation at rates 8.5 MHz 36.3 using only 3.4-$\mu$W 13.4-$\mu$W pump power, respectively, marking orders magnitude improvement over the state-of-the-art. The measured coincidence accidental ratio is well above 100 those reaches $14,682\pm...
Chip-integrated nonlinear photonics holds the key for advanced optical information processing with superior performance and novel functionalities. Here, we present an optimally mode-matched, periodically poled lithium niobate nanowaveguide efficient parametric frequency conversions on chip. Using a 4-mm subwavelength mode confinement, demonstrate second harmonic generation efficiency over 2200% W −1 c m −2, broadband difference 4.3-THz spectral span. These allow us to generate correlated...
Elevating the discharge voltage plateau is regarded as most effective strategy to improve energy density of Li||CFx batteries in consideration finite capacity CFx (x ∼ 1) cathodes. Here, an electrolyte, with LiBF4 1,3-dimethyl-2-imidazolidinone (DMI)/1,2-dimethoxyethane (DME), developed for first time substantially promote without compromising available capacity. DME possesses property low viscosity, while DMI functions increase during owing its moderate nucleophilicity and donor number,...
Thin-film lithium-niobate-on-insulator (LNOI) has emerged as a superior integrated-photonics platform for linear, nonlinear, and electro-optics. Here we combine quasi-phase-matching, dispersion engineering, tight mode confinement to realize nonlinear parametric processes with both high efficiency wide wavelength tunability. On millimeter-long, Z-cut LNOI waveguide, demonstrate efficient (1900±500%W-1cm-2) highly tunable (-1.71nm/K) second-harmonic generation from 1530 1583 nm by type-0...
Abstract Thin‐film lithium niobate (TFLN) is superior for integrated nanophotonics due to its outstanding properties in nearly all aspects: strong second‐order nonlinearity, fast and efficient electro‐optic effects, wide transparency window, little two photon absorption free carrier scattering. Together, they permit highly nanophotonic circuits capable of complex photonic processing by incorporating disparate elements on the same chip. Yet, there has be a demonstration that synergizes those...
The seeder was tested and evaluated for field operations vibration characteristics in light of the issue that spoon-wheel maize precision vibrates due to operating conditions, which impairs performance seed-metering device. During testing, it discovered device vibrated greater as forward speed increased, resulting a higher peak acceleration. However, fluctuations did not affect frequency distribution Time-domain spectrogram investigations revealed predominantly within 0~10 Hz speeds ranging...
The conversion and interaction between quantum signals at the single-photon level are essential for scalable photonic information technology. Using a fully optimized periodically poled lithium niobate microring, we demonstrate ultraefficient sum-frequency generation on chip. external efficiency reaches $(65\ifmmode\pm\else\textpm\fi{}3)\mathrm{%}$ with only $(104\ifmmode\pm\else\textpm\fi{}4)$-$\ensuremath{\mu}\mathrm{W}$ pump power. At peak conversion,...
We demonstrate an invertible all-optical gate on chip, with the roles of control and signal switchable by slightly adjusting their relative arrival time at gate. It is based quantum Zeno blockade (QZB) driven sum-frequency generation (SFG) in a periodically poled lithium niobate microring resonator. For two nearly identical nanosecond pulses, later arriving pulse modulated earlier one, resulting 2.4 3.9 power extinction between two, respectively, when peak powers are 1 mW 2 mW, respectively....
Wavelength transduction of single-photon signals is indispensable to networked quantum applications, particularly those incorporating memories. Lithium niobate nanophotonic devices have demonstrated favorable linear, nonlinear, and electro-optical properties deliver this crucial function while offering superiror efficiency, integrability, scalability. Yet, their noise level--an metric for any based application--has yet be understood. In work, we report the first study with focus on telecom...
We report on multiphoton statistics of correlated twin beams produced in a periodic poled microring resonator thin-film lithium niobate. Owing to high-cavity confinement and near-perfect quasi-phase-matching, the photon pairs are efficiently single modes at rates reaching 27 MHz per $\text{\ensuremath{\mu}}\mathrm{W}$ pump power. By using laser whose pulse-width impedance matches with cavity, those photons further created longitudinal purity 99%, without relying later-on filtering. With...
The authors demonstrate all-optical modulation on a chip, which is important for scalable information processing and quantum computing, as it supports fan-out cascaded operations. Using Zeno blockade, logical operations are realized in an interaction-free manner, solely through parametric nonlinear optics. This scheme can thus be implemented at room temperature highly integrated chips, opposed to approaches using single emitters, where cryogenic cooling required.
We demonstrate a spectroscope using single-photon counters and chip-integrated lithium niobate micro-ring filter to measure the atmospheric CO2 absorption spectrum passively. By thermo-optically sweeping over 150 pm referencing resulting photon counts bypass channel, we sample at an ultrahigh-resolution of 6 pm. Incorporating it into ground-based field system, characterize through atmosphere by counting solar photons across line around 1572.02 nm, which agrees well with its transmission...
Optical interconnect is a promising candidate for network on chip. As the key element in chip, routers greatly affect performance of whole system. In this letter, we proposed new router architecture, Waffle, based compact 2×2 hybrid photonic-plasmonic switching elements. Also, an optimized Waffle-XY, was designed employed XY routing algorithm. Both Waffle and Waffle-XY are strictly non-blocking architectures can be popular mesh-like networks. Theoretical analysis illustrated that possessed...
We demonstrate in a periodically-poled nanowaveguide second harmonic generation with efficiency over 2200% W−1cm−2, difference frequency 4.5 THz, and multichannel photon pair coincidence to accidental ratio as high 600.
Abstract The conversion and interaction between quantum signals at a single-photon level are essential for scalable photonic information technology. Using fully-optimized, periodically-poled lithium niobate microring, we demonstrate ultra-efficient sum-frequency generation on chip. external efficiency reaches (65±3)% with only (104±4) uW pump power, improving the state-of-the-art by over one order of magnitude. At peak conversion, 3×10 -5 noise photon is created during cavity lifetime, which...
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text J. Chen, Y. M. Sua, Z. Ma, C. Tang, Li, and Huang, "Efficient second-harmonic generation in sub-micron PPLN waveguides," Frontiers Optics / Laser Science, OSA Technical Digest (Optica Publishing Group, 2018), paper JTu2A.87. Export BibTex Endnote (RIS) HTML Plain alert Save article
We demonstrate parametric all-optical modulation in a periodically-poled lithium niobate microring resonator on chip. It employs quantum Zeno blockade between two distinct waves, signal and pump, through their sum-frequency generation at large per-photon efficiency of 8.2 MHz. With nanosecond pump pulses 6 mW peak power, 85.7% extinction is observed, marking over 30~times improvement across various previous implementations. only 2 43.0% observed for doubly-stronger 4 mW. This demonstrates,...
Broadband frequency comb generation through cascaded quadratic nonlinearity remains experimentally untapped in free-space cavities with bulk χ
We demonstrate an invertible all-optical gate on chip, with the roles of control and signal switchable by slightly adjusting their relative arrival time at gate. It is based quantum Zeno blockade driven sum-frequency generation in a periodic-poled lithium niobate microring resonator. For two nearly-identical nanosecond pulses, later arriving pulse modulated earlier one, resulting 2.4 3.9 power extinction between two, respectively, when peak 1 mW 2 mW. Our results, while to be improved...
We study multiplexed quantum frequency conversion (m-QFC) on a single waveguide, where pump beam simultaneously converts multiple signal beams at distinct wavelengths. Using three-peak periodically poled lithium niobate (PPLN) we demonstrate the upconversion in telecom band with internal efficiencies up to 73.6%. Tested multichannel photon-pair source, correlation is preserved well after conversion, coincidence-to-accidental ratio reaching 767. These results highlight viable device approach...