Phys. Rev. A 78, 053825 (2008) [4 pages]Single-mode coupling efficiencies of type-II spontaneous parametric down-conversion: Collinear, noncollinear, and beamlike phase matchingReceived 25 September 2008; published 21 November 2008 We report a series of experimental studies on single-mode fiber coupling of entangled photon pairs in type-II spontaneous parametric down-conversion. We experimentally compare the single-mode coupling efficiencies for three different phase matching regimes of bulk type-II spontaneous parametric down-conversion: collinear, noncollinear, and beamlike. Our experiment shows that the beamlike scheme provides the best single-mode coupling efficiency. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.053825
DOI:
10.1103/PhysRevA.78.053825
PACS:
42.65.Lm, 42.25.Bs, 03.65.Ud, 42.81.−i
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