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Title: Bright source of spectrally pure polarization-entangled photon with nearly single-mode emission

Abstract

We present results of a bright entangled photon source operating at 1552 nm via type-II collinear degenerate spontaneous parametric down-conversion in periodically poled KTP crystal. We report a conservative inferred pair generation rate of 44,000/s/mW into collection modes. Minimization of spectral and spatial entanglement was achieved by group velocity matching the pump, signal and idler modes and through properly focusing the pump beam. By utilizing a pair of calcite beam displacers, we are able to overlap photons from adjacent collinear sources to obtain polarization-entanglement visibility of 94.7 +/- 1.1% with accidentals subtracted.

Authors:
 [1];  [1];  [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1010568
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 25; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; entangled photon source; polarization; spectral; spatial; telecom; quantum optics; quantum information

Citation Formats

Evans, Philip G., Bennink, Ryan S., Grice, Warren P., Humble, Travis S., and Schaake, Jason. Bright source of spectrally pure polarization-entangled photon with nearly single-mode emission. United States: N. p., 2010. Web. doi:10.1103/PhysRevLett.105.253601.
Evans, Philip G., Bennink, Ryan S., Grice, Warren P., Humble, Travis S., & Schaake, Jason. Bright source of spectrally pure polarization-entangled photon with nearly single-mode emission. United States. https://doi.org/10.1103/PhysRevLett.105.253601
Evans, Philip G., Bennink, Ryan S., Grice, Warren P., Humble, Travis S., and Schaake, Jason. Mon . "Bright source of spectrally pure polarization-entangled photon with nearly single-mode emission". United States. https://doi.org/10.1103/PhysRevLett.105.253601.
@article{osti_1010568,
title = {Bright source of spectrally pure polarization-entangled photon with nearly single-mode emission},
author = {Evans, Philip G. and Bennink, Ryan S. and Grice, Warren P. and Humble, Travis S. and Schaake, Jason},
abstractNote = {We present results of a bright entangled photon source operating at 1552 nm via type-II collinear degenerate spontaneous parametric down-conversion in periodically poled KTP crystal. We report a conservative inferred pair generation rate of 44,000/s/mW into collection modes. Minimization of spectral and spatial entanglement was achieved by group velocity matching the pump, signal and idler modes and through properly focusing the pump beam. By utilizing a pair of calcite beam displacers, we are able to overlap photons from adjacent collinear sources to obtain polarization-entanglement visibility of 94.7 +/- 1.1% with accidentals subtracted.},
doi = {10.1103/PhysRevLett.105.253601},
url = {https://www.osti.gov/biblio/1010568}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 25,
volume = 105,
place = {United States},
year = {2010},
month = {12}
}