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This content will become publicly available on June 25, 2019

Title: Experimental study of Hong-Ou-Mandel interference using independent phase randomized weak coherent states

Hong–Ou–Mandel interferometers are valuable tools in many Quantum Information and Quantum Optics applications that require photon indistinguishability. The theoretical limit for the Hong–Ou–Mandel visibility is 0.5 for indistinguishable weak coherent photon states, but several device imperfections may hinder achieving this value experimentally. In this work, we examine the dependence of the interference visibility on various factors, including detector side imperfections due to after-pulses, mismatches in the intensities and states of polarization of the input signals, and the overall intensity of the input signals. Finally, we model all imperfections and show that theoretical modeling is in good agreement with the experimental results.
Authors:
 [1] ;  [1] ;  [1] ; ORCiD logo [2] ; ORCiD logo [2] ;  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Journal of Lightwave Technology
Additional Journal Information:
Journal Volume: 36; Journal Issue: 17; Journal ID: ISSN 0733-8724
Publisher:
IEEE
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; avalanche photodiodes; bell state; coherent state; interference; quantum key distribution; visibility
OSTI Identifier:
1461051