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Proceedings Paper

Spectral correlation and interference in continuous-wave non-degenerate photon pairs at telecom wavelengths
Author(s): Paulina S. Kuo; Thomas Gerrits; Varun Verma; Sae Woo Nam
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Paper Abstract

We have developed an entangled photon pair source based on a domain-engineered, type-II periodically poled lithium niobate crystal that produces signal and idler photons at 1533 nm and 1567 nm. We characterized the spectral correlations of the generated entangled photons using fiber-assisted signal-photon spectroscopy. We observed interference between the two down-conversion paths after erasing polarization distinguishability of the down-converted photons. The observed interference signature is closely related to the spectral correlations between photons in a Hong- Ou-Mandel interferometer. These measurements suggest good indistinguishability between the two downconversion paths, which is required for high entanglement visibility.

Paper Details

Date Published: 20 February 2017
PDF: 10 pages
Proc. SPIE 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X, 1011817 (20 February 2017); doi: 10.1117/12.2263389
Show Author Affiliations
Paulina S. Kuo, National Institute of Standards and Technology (United States)
Thomas Gerrits, National Institute of Standards and Technology (United States)
Varun Verma, National Institute of Standards and Technology (United States)
Sae Woo Nam, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 10118:
Advances in Photonics of Quantum Computing, Memory, and Communication X
Zameer Ul Hasan; Philip R. Hemmer; Hwang Lee; Alan L. Migdall, Editor(s)

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