Superconducting coincidence photon detector with short timing jitter

Miki, S., Miyajima, S., Yabuno, M., Yamashita, T., Yamamoto, T., Imoto, N., Ikuta, R., Kirkwood, R.A., Hadfield, R.H. and Terai, H. (2018) Superconducting coincidence photon detector with short timing jitter. Applied Physics Letters, 112, 262601. (doi:10.1063/1.5037254)

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Abstract

We demonstrate the operation of a coincidence photon detector with a short timing jitter consisting of two superconducting nanowire single photon detectors (SSPDs) and a single flux quantum (SFQ) circuit. By utilizing the timing discrimination capability of the SFQ coincidence circuit, the full width at half maximum timing jitter of the entire coincidence photon detector was evaluated as 32.3 ps, which is 36 ps less than that of the standard commercial time correlated single photon counting module, and the timing jitter of the SSPD was estimated as ∼15 ps. Owing to the short timing jitter characteristics, our coincidence photon detector could correctly capture the effect of pulse-width broadening by insertion of an optical bandpass filter. We have also demonstrated that our coincidence photon detection clearly shows Hong-Ou-Mandel interference with a weak coherent pulse. These results are a crucial step to realizing high timing resolution coincidence measurements, ushering in a technology for timing measurement based multi-photon quantum interference.

Item Type:Articles
Additional Information:This work was partly supported by the JSPS Grant-in-Aid for Scientific Research Grant Number JP16H02214 and JST CREST Grant Number JPMJCR1671. RAK thanks the National Institute of Information and Communications Technology (NICT) for support through a research internship.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hadfield, Professor Robert
Authors: Miki, S., Miyajima, S., Yabuno, M., Yamashita, T., Yamamoto, T., Imoto, N., Ikuta, R., Kirkwood, R.A., Hadfield, R.H., and Terai, H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
Publisher:AIP Publishing
ISSN:0003-6951
ISSN (Online):1077-3118
Published Online:26 June 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Applied Physics Letters 112:262601
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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