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Switchable detector array scheme to reduce the effect of single-photon detector’s deadtime in a multi-bit/photon quantum link

Liu, Cong and Ren, Yongxiong and Zhao, Jiapeng and Mirhosseini, Mohammad and Hashemi Rafsanjani, Seyed Mohammad and Xie, Guodong and Pang, Kai and Song, Haoqian and Zhao, Zhe and Wang, Zhe and Li, Long and Bienfang, Joshua C. and Migdall, Alan and Brun, Todd A. and Tur, Moshe and Boyd, Robert W. and Willner, Alan E. (2019) Switchable detector array scheme to reduce the effect of single-photon detector’s deadtime in a multi-bit/photon quantum link. Optics Communications, 441 . pp. 132-137. ISSN 0030-4018. https://resolver.caltech.edu/CaltechAUTHORS:20190716-075301026

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Abstract

We explore the use of a switchable single-photon detector (SPD) array scheme to reduce the effect of a detector’s deadtime for a multi-bit/photon quantum link. The case of data encoding using M possible orbital-angular-momentum (OAM) states is specifically studied in this paper. Our method uses N SPDs with a controllable M×N optical switch and we use a Monte Carlo-based method to simulate the quantum detection process. The simulation results show that with the use of the switchable SPD array, the detection system can allow a higher incident photon rate than what might otherwise be limited by detectors’ deadtime. For the case of M=4, N=20, a 50-ns deadtime for the individual SPDs, an average photon number per pulse of 0.1, and under the limit that at most 10 % of the photon-containing pulses are missed, the switchable SPD array will allow an incident photon rate of 2250 million counts/s (Mcts/s). This is 25 times the 90 Mcts/s incident photon rate that a non-switchable, 4-SPD array will allow. The increase in incident photon rate is more than the 5 times increase, which is the simple increase in the number of SPDs and the number of OAM encoding states (e.g., N/M = 20/4).


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.optcom.2019.01.081DOIArticle
ORCID:
AuthorORCID
Hashemi Rafsanjani, Seyed Mohammad0000-0001-7718-5654
Boyd, Robert W.0000-0002-1234-2265
Additional Information:© 2019 Elsevier B.V. Received 8 November 2017, Revised 11 November 2018, Accepted 28 January 2019, Available online 25 February 2019. This research was supported by the Office of Naval Research (ONR), USA (N00014-15-1-2635) and the Vannevar Bush Faculty Fellowship program sponsored by the Basic Research Office of the Assistant Secretary of Defense for Research and Engineering and funded by ONR, USA (N00014-16-1-2813).
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-15-1-2635
Vannevar Bush Faculty FellowshipUNSPECIFIED
Office of Naval Research (ONR)N00014-16-1-2813
Subject Keywords:Quantum communication; Single photon detection; Orbital angular momentum
Record Number:CaltechAUTHORS:20190716-075301026
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190716-075301026
Official Citation:Cong Liu, Yongxiong Ren, Jiapeng Zhao, Mohammad Mirhosseini, Seyed Mohammad Hashemi Rafsanjani, Guodong Xie, Kai Pang, Haoqian Song, Zhe Zhao, Zhe Wang, Long Li, Joshua C. Bienfang, Alan Migdall, Todd A. Brun, Moshe Tur, Robert W. Boyd, Alan E. Willner, Switchable detector array scheme to reduce the effect of single-photon detector’s deadtime in a multi-bit/photon quantum link, Optics Communications, Volume 441, 2019, Pages 132-137, ISSN 0030-4018, https://doi.org/10.1016/j.optcom.2019.01.081. (http://www.sciencedirect.com/science/article/pii/S0030401819300896)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97155
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Jul 2019 15:04
Last Modified:03 Oct 2019 21:28

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