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Proceedings Paper

Study on noise reduction in up-conversion single photon detectors
Author(s): Lijun Ma; Oliver Slattery; Xiao Tang
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Paper 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.

Paper Details

Date Published: 30 August 2010
PDF: 8 pages
Proc. SPIE 7815, Quantum Communications and Quantum Imaging VIII, 781508 (30 August 2010); doi: 10.1117/12.859272
Show Author Affiliations
Lijun Ma, National Institute of Standards and Technology (United States)
Oliver Slattery, National Institute of Standards and Technology (United States)
Xiao Tang, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 7815:
Quantum Communications and Quantum Imaging VIII
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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