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Title: Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer

Abstract

We demonstrate a simple, robust, and ultrabright parametric down-conversion source of polarization-entangled photons based on a polarization Sagnac interferometer. Bidirectional pumping in type-II phase-matched periodically poled KTiOPO{sub 4} yields a measured flux of 5000 polarization-entangled pairs/s/mW of pump power in a 1-nm bandwidth at 96.8% quantum-interference visibility. The common-path arrangement of the Sagnac interferometer eliminates the need for phase stabilization for the biphoton output state.

Authors:
; ;  [1]
  1. Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)
Publication Date:
OSTI Identifier:
20786661
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.73.012316; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; CONVERSION; INFORMATION THEORY; INTERFERENCE; INTERFEROMETERS; INTERFEROMETRY; OPTICAL PUMPING; OPTICS; PERIODICITY; PHOTONS; POLARIZATION; POTASSIUM COMPOUNDS; QUANTUM CRYPTOGRAPHY; QUANTUM ENTANGLEMENT; STABILIZATION; TITANIUM PHOSPHATES; VISIBLE RADIATION

Citation Formats

Kim, Taehyun, Fiorentino, Marco, and Wong, Franco N. C. Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Kim, Taehyun, Fiorentino, Marco, & Wong, Franco N. C. Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer. United States. https://doi.org/10.1103/PHYSREVA.73.0
Kim, Taehyun, Fiorentino, Marco, and Wong, Franco N. C. Sun . "Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer". United States. https://doi.org/10.1103/PHYSREVA.73.0.
@article{osti_20786661,
title = {Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer},
author = {Kim, Taehyun and Fiorentino, Marco and Wong, Franco N. C.},
abstractNote = {We demonstrate a simple, robust, and ultrabright parametric down-conversion source of polarization-entangled photons based on a polarization Sagnac interferometer. Bidirectional pumping in type-II phase-matched periodically poled KTiOPO{sub 4} yields a measured flux of 5000 polarization-entangled pairs/s/mW of pump power in a 1-nm bandwidth at 96.8% quantum-interference visibility. The common-path arrangement of the Sagnac interferometer eliminates the need for phase stabilization for the biphoton output state.},
doi = {10.1103/PHYSREVA.73.0},
url = {https://www.osti.gov/biblio/20786661}, journal = {Physical Review. A},
issn = {1050-2947},
number = 1,
volume = 73,
place = {United States},
year = {2006},
month = {1}
}