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Proceedings Article

Study on noise reduction in up-conversion single photon detectors

[+] Author Affiliations
Lijun Ma, Oliver Slattery, Xiao Tang

National Institute of Standards and Technology (USA)

Proc. SPIE 7815, Quantum Communications and Quantum Imaging VIII, 781508 (August 30, 2010); doi:10.1117/12.859272
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From Conference Volume 7815

  • Quantum Communications and Quantum Imaging VIII
  • Ronald E. Meyers; Yanhua Shih; Keith S. Deacon
  • San Diego, California | August 01, 2010

abstract

Up-conversion single photon detector technology has become efficient for photons in the near infrared range. However, its dark count rate is a major concern for some applications in quantum optics. We have theoretically and experimentally studied the causes of dark counts, and developed an up-conversion detector with an ultra low dark count rate. A reduced dark count rate of only 320 counts per second is achieved at the maximum overall detection efficiency of 18% and a dark count rate of less than 100 counts per second is achieved at a detection efficiency of 10%. The ultra low dark count rate enables this type of up-conversion detector to be utilized in a variety of applications where weak signals in the near IR region are only at a level of few thousand photons per second.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Lijun Ma ; Oliver Slattery and Xiao Tang
"Study on noise reduction in up-conversion single photon detectors", Proc. SPIE 7815, Quantum Communications and Quantum Imaging VIII, 781508 (August 30, 2010); doi:10.1117/12.859272; http://dx.doi.org/10.1117/12.859272


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