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Conference on Lasers and Electro-Optics

Photon Pair Generation on a Silicon Chip Using Nanophotonic Periodically-Poled Lithium Niobate Waveguides

Ashutosh Rao, Nima Nader, Martin J. Stevens, Thomas Gerrits, Omar S. Magaña‐Loaiza, Guillermo F. Camacho-González, Jeff Chiles, Amirmahdi Honardoost, Marcin Malinowski, Richard P. Mirin, Sasan Fathpour

Published Jan 1, 2018• 7 citations
Publisher

Abstract

We present a new class of photon pair sources on a silicon chip. The source is based on nanophotonic periodically poled lithium niobate waveguides and presents MHz rate pair generation.
DOI
10.1364/cleo_at.2018.jth3c.2

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A new kind of correlated photon-pair source based on a waveguide integrated on a periodically poled lithium niobate substrate is reported. Using a pump laser of a few µW at 657 nm, photon-pairs are generated/degenerated at 1314 nm. Detecting ~1500 coincidences per second, a conversion rate of 10-6 pairs per pump photon can be inferred, which is four orders of magnitude higher than that obtained with previous bulk sources. These results are very promising for the realisation of sources for quantum communication and quantum metrology experiments requiring a high signal-to-noise ratio or working with more than one photon-pair at a time.
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We report on a new kind of correlated photon-pair source based on a waveguide integrated on a Periodically Poled Lithium Niobate substrate. Using a pump laser of a few micro-Watts at 657 nm, we generate degenerate photon-pairs at 1314 nm. Detecting about 1500 coincidences per second, we can infer a conversion rate of 10-6 pairs per pump photon, which is four orders of magnitude higher than that obtained with previous bulk sources. These results are very promising for the realization of sources for quantum communication and quantum metrology experiments requiring a high signal-to-noise ratio or working with more than one photon-pair at a time.