Cheng, Y.
, Thomay, T.
, Solomon, G.
, Migdall, A.
and Polyakov, S.
(2015),
Statistically background-free, phase-preserving parametric up-conversion with faint light, Optics Express, [online], https://doi.org/10.1364/OE.23.018671, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917762
(Accessed December 17, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Statistically background-free, phase-preserving parametric up-conversion with faint light
Published
Author(s)
, , , ,
Abstract
We demonstrate phase preservation in a frequency up-conversion process at the single-photon level. This phase preservation enables the applications of frequency conversion of entangled photon pairs. Periodically poled lithium niobate waveguides and a 1550 nm pump laser are employed to convert near infrared 920 nm photons into the visible at 577 nm. Using a Mach-Zehnder interferometer, whose input wavelengths differ from the output, fringe visibilities of >=0.97 were observed. Within the available range of pump power and up-conversion efficiency, no statistically significant background photons near the up-converted wavelength due to the strong pump were detected in our experimental setup.Citation
Optics Express
Pub Type
Journals
Download Paper
Keywords
quantum information and processing, parametric up-conversion, phase preservation, background-free
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.
Created July 8, 2015, Updated October 14, 2021