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SNR enhancement receiver based on dual-comb microwave photonic channelization
Author(s): Jianghua Zhang; Tian Jiang; Xin Zhang; Yumin Luo; Jie Yang; Xin Zheng; Ke Yin
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Paper Abstract

Signal to noise ratio (SNR) is one of the key parameters in the communication, radar and spectrum perception systems. In this paper, we propose and demonstrate a SNR enhancement receiver with wide processing bandwidth and tunability, where two coherent optical frequency combs (OFCs) based on multi-channel microwave source and electro-optic modulators are incorporated to accomplish simultaneous frequency down-conversion and channelization. By exploiting a dual frequency microwave source as a comb driver, the FSR tunable OFC is demonstrated. The FSR of the laser can be tuned flexibly from 8 GHz to 12 GHz by controlling the controlling the frequency of the microwave source. Multifrequency microwave signal is generated from a 0-10GHz microwave signal source and cloned to the optical domain by a carrier suppressed single sideband modulator (CS-SS) and then down-converted and channelized to the same IF. The IF signals are digitalized and then added in the digital domain. With the proposed receiver a 7.2 dB SNR enhancement has been achieved.

Paper Details

Date Published: 20 December 2019
PDF: 4 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112095C (20 December 2019); doi: 10.1117/12.2550132
Show Author Affiliations
Jianghua Zhang, National Innovation Institute of Defense Technology (China)
Beijing Academy of Quantum Information Sciences (China)
Tian Jiang, National Univ. of Defense Technology (China)
Xin Zhang, National Univ. of Defense Technology (China)
Yumin Luo, National Univ. of Defense Technology (China)
Jie Yang, National Innovation Institute of Defense Technology (China)
Beijing Academy of Quantum Information Sciences (China)
Xin Zheng, National Innovation Institute of Defense Technology (China)
Beijing Academy of Quantum Information Sciences (China)
Ke Yin, National Innovation Institute of Defense Technology (China)
Beijing Academy of Quantum Information Sciences (China)


Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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