Share Email Print
cover

Proceedings Paper

Detector performance in long-distance quantum key distribution using superconducting nanowire single-photon detectors
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The recent advances in superconducting nanowire single-photon detector (SNSPD or SSPD) technology has enabled long distance quantum key distribution (QKD) over an optical fiber. We point out that the performance of SNSPDs play a crucial role in achieving a secure transmission distance of 100 km or longer. We analyze such an impact from a simplified model and use it to interpret results from our differential-phase-shift (DPS) QKD experiment. This allows us to discuss the optimization of the detection time window and the clock frequency given the detector characteristics such as dark count rate, detection efficiency, and timing jitter.

Paper Details

Date Published: 29 April 2009
PDF: 8 pages
Proc. SPIE 7320, Advanced Photon Counting Techniques III, 73200D (29 April 2009); doi: 10.1117/12.818793
Show Author Affiliations
Burm Baek, National Institute of Standards and Technology (United States)
Lijun Ma, National Institute of Standards and Technology (United States)
Alan Mink, National Institute of Standards and Technology (United States)
Xiao Tang, National Institute of Standards and Technology (United States)
Sae Woo Nam, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 7320:
Advanced Photon Counting Techniques III
Mark A. Itzler; Joe C. Campbell, Editor(s)

© SPIE. Terms of Use
Back to Top