A low-noise single-photon detector for long-distance free-space quantum communication

Elena Anisimova; Dmitri Nikulov; Simeng Simone Hu; Mark Bourgon; Sebastian Philipp Neumann; Rupert Ursin; Thomas Jennewein; Vadim Makarov

doi:10.1140/epjqt/s40507-021-00111-0

A low-noise single-photon detector for long-distance free-space quantum communication

Quantum Physics 2021-12-09 v2 Instrumentation and Detectors

Authors: Elena Anisimova , Dmitri Nikulov , Simeng Simone Hu , Mark Bourgon , Sebastian Philipp Neumann , Rupert Ursin , Thomas Jennewein , Vadim Makarov

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Abstract

We build and test a single-photon detector based on a Si avalanche photodiode Excelitas 30902SH thermoelectrically cooled to -100 deg. C. Our detector has dark count rate below 1 Hz, 500 um diameter photosensitive area, photon detection efficiency around 50%, afterpulsing less than 0.35%, and timing jitter under 1 ns. These characteristics make it suitable for long-distance free-space quantum communication links, which we briefly discuss. We also report an improved method that we call long-time afterpulsing analysis, used to determine and visualise long trap lifetimes at different temperatures.

Keywords

single-photon detector avalanche photodiode free-space quantum communication dark count rate afterpulsing photon detection efficiency timing jitter

Cite

@article{arxiv.2007.12768,
  title  = {A low-noise single-photon detector for long-distance free-space quantum communication},
  author = {Elena Anisimova and Dmitri Nikulov and Simeng Simone Hu and Mark Bourgon and Sebastian Philipp Neumann and Rupert Ursin and Thomas Jennewein and Vadim Makarov},
  journal= {arXiv preprint arXiv:2007.12768},
  year   = {2021}
}

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10 pages, 9 figures, 1 table

A low-noise single-photon detector for long-distance free-space quantum communication

Abstract

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