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Title: High heralding-efficiency of near-IR fiber coupled photon pairs for quantum technologies

We report on the development and use of a high heralding-efficiency, single-mode-fiber coupled telecom-band source of entangled photons for quantum technology applications. The source development efforts consisted of theoretical and experimental efforts and we demonstrated a correlated-mode coupling efficiency of 97% 2%, the highest efficiency yet achieved for this type of system. We then incorporated these beneficial source development techniques in a Sagnac configured telecom-band entangled photon source that generates photon pairs entangled in both time/energy and polarization degrees of freedom. We made use of these highly desirable entangled states to investigate several promising quantum technologies.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [1] ;  [3] ;  [1]
  1. Massachusetts Institute of Technology (MIT)
  2. Lincoln Laboratory, Massachusetts Institute of Technology (MIT)
  3. ORNL
Publication Date:
OSTI Identifier:
1261449
DOE Contract Number:
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: Quantum Information and Computation XIII, Baltimore, MD, USA, 20150420, 20150420
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
Quantum information; heralding efficiency; entanglement; PERIODICALLY POLED KTIOPO4; CRYPTOGRAPHY; GENERATION; RBTIOASO4; VIOLATION; KTIOASO4; CRYSTALS