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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Information Science and Technology / Faculty of Information Science and Technology >
Peer-reviewed Journal Articles, etc >
Efficient and low-noise single-photon avalanche photodiode for 1.244-GHz clocked quantum key distribution
| Title: | Efficient and low-noise single-photon avalanche photodiode for 1.244-GHz clocked quantum key distribution |
| Authors: | Nambu, Y. Browse this author | | Takahashi, S. Browse this author | | Yoshino, K. Browse this author | | Tanaka, A. Browse this author | | Fujiwara, M. Browse this author | | Sasaki, M. Browse this author | | Tajima, A. Browse this author | | Yorozu, S. Browse this author | | Tomita, A. Browse this author →KAKEN DB |
| Issue Date: | 10-Oct-2011 |
| Publisher: | Optical Society of America |
| Journal Title: | Optics Express |
| Volume: | 19 |
| Issue: | 21 |
| Start Page: | 20531 |
| End Page: | 20541 |
| Publisher DOI: | 10.1364/OE.19.020531 |
| Abstract: | An efficient and low-noise 1.244-GHz gating InGaAs single-photon avalanche photodiode (SAPD) was developed for a high-speed quantum key distribution (QKD) system. An afterpulsing probability of 0.61% and a dark count probability per gate of 0.71 x 10^[-6] were obtained at a detection efficiency of 10.9% for 1.55-μm photons. Furthermore, our SAPD successfully coped with high detection efficiency (≤ 25%) and quite low afterpulsing noise (≤ 3% for ≤ 25% efficiency) at the same time. Its potential was verified using the actual QKD setups installed over a metropolitan area network. |
| Rights: | ©2011 Optical Society of America |
| Type: | article |
| URI: | http://hdl.handle.net/2115/47433 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 富田 章久
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