Optimizing single-photon-source heralding efficiency at 1550 nm using periodically poled lithium niobate

Details Optimizing single-photon-source heralding efficiency at 1550 nm using periodically poled lithium niobate Optimizing single-photon-source heralding efficiency at 1550 nm using periodically poled lithium niobate

2006-01-11

arxiv.org/abs/quant-ph/0601067v2

Physics

Quantum Physics

14 pages, 2 tables and 3 figures, final version accepted by Metrologia

Scientific paper

10.1088/0026-1394/43/2/S12

We explore the feasibility of using high conversion-efficiency periodically-poled crystals to produce photon pairs for photon-counting detector calibrations at 1550 nm. The goal is the development of an appropriate parametric down-conversion (PDC) source at telecom wavelengths meeting the requirements of high-efficiency pair production and collection in single spectral and spatial modes (single-mode fibers). We propose a protocol to optimize the photon collection, noise levels and the uncertainty evaluation. This study ties together the results of our efforts to model the single-mode heralding efficiency of a two-photon PDC source and to estimate the heralding uncertainty of such a source.

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