A proof-of-principle demonstration of quantum microwave photonics
- URL: http://arxiv.org/abs/2201.12106v1
- Date: Fri, 28 Jan 2022 13:25:34 GMT
- Title: A proof-of-principle demonstration of quantum microwave photonics
- Authors: Yaqing Jin, Ye Yang, Huibo Hong, Xiao Xiang, Runai Quan, Tao Liu,
Shougang Zhang, Ninghua Zhu, Ming Li, and Ruifang Dong
- Abstract summary: Radio-over-fiber technology provides high bandwidth, low-loss, and long-distance propagation capability.
Ultrashort pulses as the optical carrier results in the severe vulnerability of high-frequency RF signals to fiber dispersion.
Time-energy entangled biphoton source as the optical carrier and combined with the single-photon detection technique, a quantum microwave photonics method is proposed.
- Score: 7.271477373654159
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: With the rapid development of microwave photonics, which has expanded to
numerous applications of commercial importance, eliminating the emerging
bottlenecks becomes of vital importance. For example, as the main branch of
microwave photonics, radio-over-fiber technology provides high bandwidth,
low-loss, and long-distance propagation capability, facilitating wide
applications ranging from telecommunication to wireless networks. With
ultrashort pulses as the optical carrier, huge capacity is further endowed.
However, the wide bandwidth of ultrashort pulses results in the severe
vulnerability of high-frequency RF signals to fiber dispersion. With a
time-energy entangled biphoton source as the optical carrier and combined with
the single-photon detection technique, a quantum microwave photonics method is
proposed and demonstrated experimentally. The results show that it not only
realizes unprecedented nonlocal RF signal modulation with strong resistance to
the dispersion associated with ultrashort pulse carriers but provides an
alternative mechanism to effectively distill the RF signal out from the
dispersion. Furthermore, the spurious-free dynamic range of both the nonlocally
modulated and distilled RF signals has been significantly improved. With the
ultra-weak detection and high-speed processing advantages endowed by the
low-timing-jitter single-photon detection, the quantum microwave photonics
method opens up new possibilities in modern communication and networks.
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