Integrated Source of Spectrally Filtered Correlated Photons for Large-Scale Quantum Photonic Systems
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PhysRevX.4.041047.pdf
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Author(s)
Grassani, Davide
Simbula, Angelica
Pant, Mihir
Galli, Matteo
Baehr-Jones, Tom
Hochberg, Michael
Bajoni, Daniele
Galland, Christophe
Harris, Nicholas Christopher
Englund, Dirk Robert
Date Issued
December 2014
Journal
Physical Review X
Publisher
American Physical Society
Citation
Harris, Nicholas C., Davide Grassani, Angelica Simbula, Mihir Pant, Matteo Galli, Tom Baehr-Jones, Michael Hochberg, Dirk Englund, Daniele Bajoni, and Christophe Galland. “Integrated Source of Spectrally Filtered Correlated Photons for Large-Scale Quantum Photonic Systems.” Physical Review X 4, no. 4 (December 2014).
Version
Final published version
Abstract
We demonstrate the generation of quantum-correlated photon pairs combined with the spectral filtering of the pump field by more than 95 dB on a single silicon chip using electrically tunable ring resonators and passive Bragg reflectors. Moreover, we perform the demultiplexing and routing of signal and idler photons after transferring them via an optical fiber to a second identical chip. Nonclassical two-photon temporal correlations with a coincidence-to-accidental ratio of 50 are measured without further off-chip filtering. Our system, fabricated with high yield and reproducibility in a CMOS-compatible process, paves the way toward large-scale quantum photonic circuits by allowing sources and detectors of single photons to be integrated on the same chip.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevX.4.041047
