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Spectral correlation and interference in continuous-wave non-degenerate photon pairs at telecom wavelengths

Published

Author(s)

Paulina S. Kuo, Thomas Gerrits, Varun B. Verma, Sae Woo Nam

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.
Volume
10118
Issue
10
Conference Dates
January 29-February 2, 2017
Conference Location
San Francisco, CA
Conference Title
SPIE Photonics West

Citation

Kuo, P. , Gerrits, T. , Verma, V. and Nam, S. (2017), Spectral correlation and interference in continuous-wave non-degenerate photon pairs at telecom wavelengths, SPIE Photonics West, San Francisco, CA, [online], https://doi.org/10.1117/12.2263389 (Accessed October 24, 2021)
Created March 14, 2017, Updated November 10, 2018