Thursday 6 August 2015
Useful time-bin entanglement systems must be able to generate, manipulate, and analyze en- tangled photons on a photonic chip for stable, scalable, and reconfigurable operation. We realiszed the first time-bin entanglement photonic chip that integrates pump time-bin preparation, wavelength demultiplexing, and entanglement analysis. A two-photon interference fringe with 88.4 % visibility is measured (without subtracting any noise), indicating the high performance of the chip. Our approach, based on a silicon nitride photonic circuit, which combines low loss and tight in- tegration features, paves the way for scalable real-world quan- tum information processors.
