Advancements in On-Chip Photonic Technology for High-Speed and Low-Power Applications.
Researchers in Germany and the Netherlands have developed a complete entangled photon source on a chip that is about the size of a one euro coin. The team used a new architecture to combine several integrated photonic technologies into one device, creating a photonics system-on-a-chip that generates entangled photons. The chip creates pairs of frequency-entangled photons with 99% fidelity about 1000 times per second. The team is now working towards extending the on-chip photonic capabilities to include the creation of multiphoton cluster states.