21 May 2015 High heralding-efficiency of near-IR fiber coupled photon pairs for quantum technologies
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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.
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P. Ben Dixon, P. Ben Dixon, Ryan Murphy, Ryan Murphy, Danna Rosenberg, Danna Rosenberg, Matthew E. Grein, Matthew E. Grein, Veronika Stelmakh, Veronika Stelmakh, Ryan S. Bennink, Ryan S. Bennink, Franco N. C. Wong, Franco N. C. Wong, "High heralding-efficiency of near-IR fiber coupled photon pairs for quantum technologies", Proc. SPIE 9500, Quantum Information and Computation XIII, 950016 (21 May 2015); doi: 10.1117/12.2178907; https://doi.org/10.1117/12.2178907

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