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Frequency Up-conversion Single Photon Detectors for Quantum Communication Systems



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


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.
Proceedings Title
Proceedings of SPIE
Conference Dates
April 25-29, 2011
Conference Location
Orlando, FL, US
Conference Title
SPIE Defense Security and Sensing


Single photon detector, Frequency up-conversion, Optical sampling


Ma, L. , Slattery, O. , Tang, X. and Bienfang, J. (2011), Frequency Up-conversion Single Photon Detectors for Quantum Communication Systems, Proceedings of SPIE, Orlando, FL, US, [online], (Accessed June 18, 2024)


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Created April 26, 2011, Updated October 12, 2021