Chip-based squeezing at a telecom wavelength

Abstract

We demonstrate a squeezing experiment exploiting the association of integrated optics and telecom technology as key features for compact, stable, and practical continuous variable quantum optics. In our setup, squeezed light is generated by single pass spontaneous parametric down conversion on a lithium niobate photonic circuit and detected by an homodyne detector whose interferometric part is directly integrated on the same platform. The remaining parts of the experiment are implemented using commercial plug-and-play devices based on guided-wave technologies. We measure, for a CW pump power of 40\,mW, a squeezing level of $-2.00\pm 0.05$\,dB, (antisqueezing $+2.80\pm 0.05$\,dB) thus confirming the validity of our approach and opening the way toward miniaturized and easy-to-handle continuous variable based quantum systems.

References in corpus (22)

• Gaussian Quantum Information
• Continuous-variable optical quantum state tomography
• Wavelength-Multiplexed Quantum Networks with Ultrafast Frequency Combs
• Squeezed states of light and their applications in laser interferometers
• 30 years of squeezed light generation
• On-Chip Optical Squeezing
• Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB
• Remote creation of hybrid entanglement between particle-like and wave-like optical qubits
• Breeding the optical Schroedinger's cat state
• Quantum photonics at telecom wavelengths based on lithium niobate waveguides
• Continuous variable entanglement on a chip
• An On-chip Homodyne Detector for Measuring Quantum States and Generating Random Numbers
• Electronic Noise in Optical Homodyne Tomography
• Ultracompact Generation of Continuous-Variable Cluster States
• Squeezing at a telecom wavelength, a compact and fully guided-wave approach
• A scheme for quantum teleportation between discrete and continuous encodings of an optical qubit
• Generation of continuous-wave broadband Einstein-Podolsky-Rosen beams using periodically-poled lithium niobate waveguides
• A waveguide cavity resonator source of squeezing
• Broadband amplitude squeezing in a periodically poled KTiOPO_4 waveguide
• Gaussian Entanglement for Quantum Key Distribution from a Single-Mode Squeezing Source
• Detection of squeezing by on-chip glass-integrated homodyne analyzer
• Detection of two-mode spatial quantum states of light by electro-optic integrated directional couplers

Cited by in corpus (33)

• Near-degenerate quadrature-squeezed vacuum generation on a silicon-nitride chip
• Broadband quadrature-squeezed vacuum and nonclassical photon number correlations from a nanophotonic device
• Continuous-wave 6-dB-squeezed light with 2.5-THz-bandwidth from single-mode PPLN waveguide
• Squeezed light from a nanophotonic molecule
• Continuous-variable quantum computing in the quantum optical frequency comb
• Nonlinear integrated quantum photonics with AlGaAs
• Ultra-broadband quadrature squeezing with thin-film lithium niobate nanophotonics
• Quantum-Computing Architecture based on Large-Scale Multi-Dimensional Continuous-Variable Cluster States in a Scalable Photonic Platform
• All-optical phase-sensitive detection for ultra-fast quantum computation
• Building a large-scale quantum computer with continuous-variable optical technologies
• Generation of Schrödinger cat states with Wigner negativity using continuous-wave low-loss waveguide optical parametric amplifier
• Mid-infrared homodyne balanced detector for quantum light characterization
• A Compact, Mobile, Low-Threshold Squeezed Light Source
• Degenerate squeezing in a dual-pumped integrated microresonator: parasitic processes and their suppression
• Quantum state engineering in arrays of nonlinear waveguides
• Multimode Squeezed State for Reconfigurable Quantum Networks at Telecommunication Wavelengths
• Information processing at the speed of light
• 4-dB quadrature squeezing with fiber-coupled PPLN ridge waveguide module
• Continuous variable multimode quantum states via symmetric group velocity matching
• Continuous-variable entanglement in a two-mode lossy cavity: an exact solution
• Photorefractive effect in LiNbO${}_3$-based integrated-optical circuits for continuous variable experiments
• Continuous-variable quantum key distribution with noisy squeezed states
• Versatile photonic entanglement synthesizer in the spatial domain
• A theoretical framework for photon-subtraction with non-mode selective resources
• Quantum State Tomography in a Third-Order Integrated Optical Parametric Oscillator
• Plug-&-play generation of non-Gaussian states of light at a telecom wavelength
• Classical and Quantum Frequency Combs for Satellite-based Clock Synchronization
• Configurable heralded two-photon Fock-states on a chip
• Coupling quasi-phase matching: entanglement buildup in ${\chi }^{(2)}$ nonlinear waveguide arrays
• Supermode-based second harmonic generation in a nonlinear interferometer
• Broadband biphoton generation and polarization splitting in a monolithic AlGaAs chip
• On-demand continuous-variable quantum entanglement source for integrated circuits
• Perspectives on epitaxial InGaP for quantum and nonlinear optics