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Conferences > QELS > 2012 > QTu1E > QTu1E.5

55% system detection efficiency with self-aligned WSi superconducting nanowire single-photon detectors

V. B. Verma, F. Marsili, B. Baek, A. E. Lita, T. Gerrits, J. A. Stern, R. P. Mirin, and S. W. Nam

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Abstract

We report a system detection efficiency of 55 % at 1500 nm with an amorphous tungsten-silicide (WSi) superconducting nanowire single-photon detector (SNSPD) using a self-aligned packaging scheme for alignment of the detector and optical fiber.

© 2012 Optical Society of America

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