Frequency entangled photons have potential for various quantum applications. Recently, on-chip photon-pair sources made by CMOS compatible processes have attracted attention. In this paper, we report broadband generation of photon-pairs via a spontaneous four-wave mixing process using a CMOS compatible ring resonator. We performed frequency-correlation between the signal and idler photons by frequency-resolved coincidence detection and confirmed that the signal and idler photons are correlated over 59 frequency modes, a bandwidth of 23.6 nm, which are the largest numbers achieved to date. Furthermore, we reproduced the experimentally observed joint spectral intensity from the obtained transmission spectrum of the resonator involving the information of the dispersion of the device.
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1 June 2020
Research Article|
June 04 2020
Broadband generation of photon-pairs from a CMOS compatible device
Special Collection:
Quantum Sensing with Correlated Light Sources
K. Sugiura;
K. Sugiura
1
Department of Electronic Science and Engineering, Kyoto University
, Kyotodaigakukatsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Z. Yin;
Z. Yin
1
Department of Electronic Science and Engineering, Kyoto University
, Kyotodaigakukatsura, Nishikyo-ku, Kyoto 615-8510, Japan
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R. Okamoto;
R. Okamoto
1
Department of Electronic Science and Engineering, Kyoto University
, Kyotodaigakukatsura, Nishikyo-ku, Kyoto 615-8510, Japan
2
PRESTO, Japan Science and Technology Agency
, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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L. Zhang
;
L. Zhang
3
Research Institute of Superconductor Electronics, Nanjing University
, Nanjing 210023, China
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L. Kang;
L. Kang
3
Research Institute of Superconductor Electronics, Nanjing University
, Nanjing 210023, China
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J. Chen;
J. Chen
3
Research Institute of Superconductor Electronics, Nanjing University
, Nanjing 210023, China
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P. Wu;
P. Wu
3
Research Institute of Superconductor Electronics, Nanjing University
, Nanjing 210023, China
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S. T. Chu
;
S. T. Chu
4
Department of Physics, City University of Hong Kong
, Tat Chee Avenue, Hong Kong, China
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B. E. Little;
B. E. Little
5
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science
, Xi'an 710119, China
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S. Takeuchi
S. Takeuchi
a)
1
Department of Electronic Science and Engineering, Kyoto University
, Kyotodaigakukatsura, Nishikyo-ku, Kyoto 615-8510, Japan
a)Author to whom correspondence should be addressed: takeuchi@kuee.kyoto-u.ac.jp
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a)Author to whom correspondence should be addressed: takeuchi@kuee.kyoto-u.ac.jp
Note: This paper is part of the APL Special Collection on Quantum Sensing with Correlated Light Sources.
Appl. Phys. Lett. 116, 224001 (2020)
Article history
Received:
March 30 2020
Accepted:
May 24 2020
Citation
K. Sugiura, Z. Yin, R. Okamoto, L. Zhang, L. Kang, J. Chen, P. Wu, S. T. Chu, B. E. Little, S. Takeuchi; Broadband generation of photon-pairs from a CMOS compatible device. Appl. Phys. Lett. 1 June 2020; 116 (22): 224001. https://doi.org/10.1063/5.0009361
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