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Silicon Quantum photonics
Quantum photonics is key to ensure ultra-safe data transmission. It also has recently emerged as a potential path towards quantum computing.
Ensuring large-scale integration is necessary to enable quantum applications. To achieve massive integration, CEA-Leti leverages its mature Si and SiN photonics platform for the development of low-loss quantum photonic hardware.
CEA-Leti specifically develops quantum-grade photonic integrated components & circuits for the generation, fast encoding, coherent manipulation & detection of photonic qubits. CEA-Leti components are compatible with discrete or continuous variable approaches.
CEA-Leti aims at contributing to the future generation of miniaturized ultrasecure quantum communication systems, either fiber-based or in free-space, by developing integrated quantum transmitter and receiver circuits matching the specifications of the most advanced quantum communication protocols, such as device-independent ones.
CEA-Leti also aims at contributing to the development of integrated quantum photonic processors relying for example on measurement-based quantum computing protocols. We address the heart of the programmable quantum processor while ensuring seamless generation of entangled photon cluster states and their high-efficiency detection on-chip.
CEA-Leti’s experts are developing key integrated components and circuits to enable advanced quantum key distribution protocols and quantum processing:
Single photon generation
Photon fast encoding and coherent manipulation
Single photon detection
CEA-Leti’s quantum photonics platform enables the development of next-generation technologies for key industries such as:
State of the art capabilities
Record low optical losses
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.