A5046864466- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
- Quantum optics and atomic interactions
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Advanced Photonic Communication Systems
- Semiconductor Lasers and Optical Devices
- Neural Networks and Reservoir Computing
- Quantum Information and Cryptography
- Cellular Mechanics and Interactions
- Optical Network Technologies
- Solid State Laser Technologies
- Radiation Detection and Scintillator Technologies
- Advanced Antenna and Metasurface Technologies
ETH Zurich
2024
Abstract Programmable interferometric circuits are at the heart of integrated quantum photonic processors. While lithium niobate-on-insulator platform has potential to advance photonics due its strong nonlinearity and tight mode confinement, demonstration reconfigurable two-photon interference not yet been achieved. Here, we design, fabricate characterize building block such networks in form a 2 × Mach–Zehnder Interferometer. We use thermo-optic phase shifter achieve stable performance with...
Optical parametric oscillators (OPOs) have been studied as basic components for optical computing with phase encoding and Ising machines. Integrated photonics offers a scalable solution to incorporate progressively larger number of devices towards functional module. Among the available platforms, lithium niobate on insulator is an excellent candidate this goal thanks its large second order nonlinearity, which can be leveraged via periodic poling thin film. In work, we show device 2.5 mW...
Generating and interfering non-classical states of light is fundamental to optical quantum information science technology. Quantum photonic integrated circuits provide one pathway towards scalability by combining nonlinear sources programmable in centimeter-scale devices. The key requirements for applications include efficient generation indistinguishable photon-pairs high-visibility interference. Here, we demonstrate a lithium niobate-on-insulator (LNOI) circuit that generates two-photon...
Intensity modulators are fundamental components for integrated photonics. From near-infrared (NIR) to visible spectral ranges, they find applications in optical communication and quantum technologies. In particular, required the control manipulation of atomic systems such as clocks computers. Typical electro-optic operating at these wavelengths show high bandwidth low-voltage operation, but their extinction ratios moderate. Here we present an thin-film lithium niobate (EO) modulator C-band,...
Optical quantum communication technologies are making the prospect of unconditionally secure and efficient information transfer a reality. The possibility generating reliably detecting states light, with further need increasing private data-rate is where most research efforts focusing. physical concept entanglement solution guaranteeing highest degree security in device-independent schemes, yet its implementation preservation over long links hard to achieve. Lithium niobate-on-insulator has...
Intensity modulators are fundamental components for integrated photonics. From near infrared to visible spectral ranges, they find applications in optical communication and quantum technologies. In particular, required the control manipulation of atomic systems such as clocks computers. Typical electro-optic operating at these wavelengths show high bandwidth low voltage operation, but their extinction ratios moderate. Here we present an thin-film lithium niobate modulator C-band, which uses...
Optical quantum communication technologies are making the prospect of unconditionally secure and efficient information transfer a reality. The possibility generating reliably detecting states light, with further need increasing private data-rate is where most research efforts focusing. physical concept entanglement solution guaranteeing highest degree security in device-independent schemes, yet its implementation preservation over long links hard to achieve. Lithium niobate-on-insulator has...
Electro-optical modulation is widely employed for optical signal processing and in laser technology. To date, it efficiently realized integrated photonic systems as well bulk optics devices. Yet, the achievement of modulators exploiting Pockels effect flat optics, essential to scale down electric radiation-optical control free space, currently lag behind on-chip platforms terms efficiency speed. We bridge this gap realizing a metasurface based on lithium niobate (LiNbO3) insulator that...