A coherent Ising machine for 2000-node optimization problems

Takahiro Inagaki, Yoshitaka Haribara, Koji Igarashi, +14

Science

Highly Efficient Wavelength Converter Using Direct-Bonded PPZnLN Ridge Waveguide

Takeshi Umeki, O. Tadanaga, Masaki Asobe

IEEE Journal of Quantum Electronics

PhotonicsOptical MaterialsEngineeringOptical PropertiesWavelength Conversion +10

Long-distance entanglement-based quantum key distribution over optical fiber

Toshimori Honjo, Sae Woo Nam, Hiroki Takesue, +13

Optics Express

Nbn NanowiresQuantum SciencePhotonicsEngineeringQuantum Computing +10

Efficient entanglement distribution over 200 kilometers

J. F. Dynes, Hiroki Takesue, Zhiliang Yuan, +8

Optics Express

Quantum SciencePhotonicsQuantum CryptographyEngineeringQuantum Computing +10

Direct-bonded QPM-LN ridge waveguide with high damage resistance at room temperature

Y. Nishida, H. Miyazawa, Masaki Asobe, +2

Electronics Letters

PhotonicsRoom TemperatureEngineeringOptical PropertiesApplied Physics +6

Generation of pulsed polarization-entangled photon pairs in a 155-µm band with a periodically poled lithium niobate waveguide and an orthogonal polarization delay circuit

Hiroki Takesue, Kyo Inoue, O. Tadanaga, +2

Optics Letters

Quantum SciencePhotonicsQuantum PhotonicsPolarization EntanglementQuantum Computing +9

Efficient 3-μm difference frequency generation using direct-bonded quasi-phase-matched LiNbO3 ridge waveguides

O. Tadanaga, Tsutomu Yanagawa, Y. Nishida, +4

Applied Physics Letters

PhotonicsConversion EfficiencyGuided-wave OpticMethane Gas DetectionPlanar Waveguide Sensor +1

Multiple quasi-phase-matched LiNbO_3 wavelength converter with a continuously phase-modulated domain structure

Masaki Asobe, O. Tadanaga, Hiroshi Miyazawa, +2

Optics Letters

PhotonicsWavelength-division Multiplexed SignalsPhase-modulated Domain StructureEngineeringOptical Transmission System +5

Long-distance distribution of time-bin entangled photon pairs over 100 km using frequency up-conversion detectors

Toshimori Honjo, Hiroki Takesue, H. Kamada, +4

Optics Express

PhotonicsQuantum ScienceQuantum OpticEngineeringQuantum Computing +9

Phase sensitive degenerate parametric amplification using directly-bonded PPLN ridge waveguides

Takeshi Umeki, O. Tadanaga, Atsushi Takada, +1

Optics Express

PhotonicsIdentical AmplificationEngineeringOptical Transmission SystemOptical Properties +9