Up-conversion single-photon detector using multi-wavelength sampling techniques | Zendy

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

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Up-conversion single-photon detector using multi-wavelength sampling techniques

Author(s) -

Lijun Ma,

Joshua C. Bienfang,

Oliver Slattery,

Xiao Tang

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.005470

Subject(s) - detector , optics , photon , physics , transmission (telecommunications) , sampling (signal processing) , wavelength , temporal resolution , spontaneous parametric down conversion , photon counting , optoelectronics , quantum , computer science , telecommunications , quantum mechanics , quantum entanglement

The maximum achievable data-rate of a quantum communication system can be critically limited by the efficiency and temporal resolution of the system's single-photon detectors. Frequency up-conversion technology can be used to increase detection efficiency for IR photons. 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. We also discuss the limiting factors of this approach and identify important performance-limiting trade offs.

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