Generation of correlated photon-pairs in short thin-film lithium-niobate waveguides

Bradley S. Elkus*, Kamal Abdelsalam, Ashutosh Rao, Vesselin Velev, Sasan Fathpour, Prem Kumar, Gregory S. Kanter

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We generate photon-pairs in signal-idler channels separated by up to 120 nm with high coincidence-to-accidental ratios using a 300-µm-long periodically-poled lithium-niobate ridge waveguide bonded to silicon.

Original languageEnglish (US)
Title of host publicationLaser Science, LS_2019
PublisherOptica Publishing Group (formerly OSA)
ISBN (Print)9781943580675
StatePublished - 2019
EventLaser Science, LS_2019 - Washington, Switzerland
Duration: Sep 15 2019Sep 19 2019

Publication series

NameOptics InfoBase Conference Papers
VolumePart F148-LS 2019
ISSN (Electronic)2162-2701

Conference

ConferenceLaser Science, LS_2019
Country/TerritorySwitzerland
CityWashington
Period9/15/199/19/19

Funding

The coupling, filtering losses, and the asymmetry of the signal/idler filters relative to the half-pump frequency degrade the coincidence count rates and the heralding efficiencies. Despite a low loss-corrected idler heralding efficiency of 17.9 ± 0.4% for the 120 nm channel separation, the high CAR shows our chip could be a good, wideband pair source for integration into WDM systems. This research was sponsored by the Department of the Navy, Office of Naval Research under ONR award number N000141712409.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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