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Application of Kramers–Kronig receiver in SSB-OFDM-RoF link

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摘要

We propose and investigate the use of Kramers–Kronig (KK) receiver in single sideband orthogonal frequency division multiplexing radio over fiber (SSB-OFDM-RoF) link based on optical remote heterodyne solution. This scheme is effective in eliminating the signal-to-signal beating interference (SSBI) introduced by square-law detection of photo-detector (PD) in SSB-OFDM-RoF link. We extensively studied the influences of different carrier-to-signal power ratios (CSPRs), laser linewidths and transmission distances on our proposed scheme. It is proved that the KK-based receiver can reduce optimal CSPR by more than 5 dB and provide about 1.1 dB gain over the conventional mixer-based receiver scheme with CSPR of 11 dB after 75 km fiber transmission.

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作者单位:

    University of Electronic Science and Technology of China
    University of Electronic Science and Technology of China
    University of Electronic Science and Technology of China
    University of Electronic Science and Technology of China
    University of Electronic Science and Technology of China

引用该论文

Cai Yuancheng,Ling Yun,Gao Xiang,Xu Bo,Qiu Kun. Application of Kramers–Kronig receiver in SSB-OFDM-RoF link[J].Chinese Optics Letters,2019,17(1):01.