5 papers · 1 filter
Broadband High-Level Squeezed Light using Waveguide Optical Parametric Amplifiers with External Dispersion Compensation
Takumi Suzuki, Shotaro Oki, Kazuki Hirota +8
We demonstrate broadband phase-sensitive amplification (PSA) measurement of squeezed light generated by a waveguide optical parametric amplifier (OPA) with external dispersion comp…
Generation of 12 dB squeezed light from a waveguide optical parametric amplifier using a machine-learning-controlled spatial light modulator
Gyeongmin Ha, Kazuki Hirota, Takahiro Kashiwazaki +5
We demonstrate the generation of dB squeezed light from a periodically poled lithium niobate (PPLN) waveguide optical parametric amplifier (OPA). While single-pass O…
Tuning Wave-Particle Duality of Quantum Light by Generalized Photon Subtraction
Kan Takase, Mamoru Endo, Fumiya Hanamura +11
Wave--particle duality is a hallmark of quantum mechanics. For bosonic systems, there exists a continuum of intermediate states bridging wave-like Schrödinger cat states and parti…
Generation of 10-dB squeezed light from a broadband waveguide optical parametric amplifier with improved phase locking method
Kazuki Hirota, Takahiro Kashiwazaki, Gyeongmin Ha +10
We report generation of 10.1\pm0.2-dB squeezed light from a broadband periodically poled lithium niobate (PPLN) waveguide optical parametric amplifier (OPA). Based on our previous…
Scalable Optical Quantum State Synthesizer with Dual-Mode Resonator Memory
Fumiya Hanamura, Kan Takase, Kazuki Hirota +12
Optical quantum computing is a promising approach for achieving large-scale quantum computation. While Gaussian operations have been successfully scaled, the inherently weak nonlin…