Frequency up-conversion single-photon detectors for quantum communication systems

Lijun Ma; Joshua C. Bienfang; Oliver Slattery; Xiao Tang

doi:10.1117/12.883213

12 May 2011 Frequency up-conversion single-photon detectors for quantum communication systems

Lijun Ma, Joshua C. Bienfang, Oliver Slattery, Xiao Tang

Proceedings Volume 8033, Advanced Photon Counting Techniques V; 803306 (2011) https://doi.org/10.1117/12.883213
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Frequency up-conversion technology can be used to increase detection efficiency for near infrared photons, as has been demonstrated in fiber-based quantum communication systems. In a continuous wave pumped up-conversion detector, the temporal resolution is limited by the timing jitter of the detector in the visible range, which limits the maximum clock rate of a quantum communication system. In this paper we describe a scheme to improve the temporal resolution of an up-conversion single-photon detector using multi-wavelength optical-sampling techniques, allowing for increased transmission rates in single-photon communications systems. We experimentally demonstrate our approach with an up-conversion detector using two spectrally and temporally distinct pump pulses, and show that it allows for high-fidelity single-photon detection at twice the rate supported by a conventional single-pump up-conversion detector.

Citation Download Citation

Lijun Ma, Joshua C. Bienfang, Oliver Slattery, and Xiao Tang "Frequency up-conversion single-photon detectors for quantum communication systems", Proc. SPIE 8033, Advanced Photon Counting Techniques V, 803306 (12 May 2011); https://doi.org/10.1117/12.883213

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