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Optimal coupling of entangled photons into single-mode optical fibers

R. Andrews·E. R. Pike·Sarben Sarkar
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Abstract

We present a consistent multimode theory that describes the coupling of single photons generated by collinear Type-I parametric down-conversion into single-mode optical fibers. We have calculated an analytic expression for the fiber diameter which maximizes the pair photon count rate. For a given focal length and wavelength, a lower limit of the fiber diameter for satisfactory coupling is obtained.

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R. Andrews, E. R. Pike, Sarben Sarkar. 2004-12-08. Optimal coupling of entangled photons into single-mode optical fibers. https://doi.org/10.1364/opex.12.003264

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