Journal
OPTICS EXPRESS
Volume 19, Issue 20, Pages 19562-19571Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.19.019562
Keywords
-
Categories
Funding
- NICT under the Ministry of Internal Affairs and Communications of Japan
Ask authors/readers for more resources
We discuss our estimates of the performance of a superconducting single photon detector (SSPD) in a high speed quantum key distribution (QKD) system. We find that at high repetition operation reflections from the readout circuit at room temperature causes an afterpulse-like phenomenon, and drastically increases the quantum bit error rate (QBER). Such effects are not seen during low frequency operation. By using an amplifier with a small reflection coefficient S11, we succeed in reducing the afterpulse-like phenomenon and increasing a secure key rate. (C) 2011 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available