Single photon detector comparison in a quantum key distribution test

Jonathan L. Habif; David S. Pearson; Robert H. Hadfield; Robert E. Schwall; Sae Woo Nam; Aaron J. Miller

doi:10.1117/12.685552

3 November 2006 Single photon detector comparison in a quantum key distribution test

Jonathan L. Habif, David S. Pearson, Robert H. Hadfield, Robert E. Schwall, Sae Woo Nam, Aaron J. Miller

Proceedings Volume 6372, Advanced Photon Counting Techniques; 63720Z (2006) https://doi.org/10.1117/12.685552
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

We provide a direct comparison between the InGaAs avalanche photodiode (APD) and the NbN superconducting single photon detector (SSPD) for applications in fiber-based quantum cryptography. The quantum efficiency and dark count rate were measured for each detector, and used to calculate the quantum bit error rate (QBER) and shared key rate for a QKD link. The results indicate that, despite low quantum efficiency, the speed of the SSPD makes it a superior detector for quantum information applications. Finally, we present results of an initial integration of an SSPD into a receiver node of the DARPA quantum network to perform quantum key distribution.

Citation Download Citation

Jonathan L. Habif, David S. Pearson, Robert H. Hadfield, Robert E. Schwall, Sae Woo Nam, and Aaron J. Miller "Single photon detector comparison in a quantum key distribution test", Proc. SPIE 6372, Advanced Photon Counting Techniques, 63720Z (3 November 2006); https://doi.org/10.1117/12.685552

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