Fan Hu, Chenxia Liu, Dongxing Wang, Jingxi Liang, Shujin Zhou, Yaojun Qiao, Song Yu
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Radio-Frequency Transfer over a 1007-km Fiber Link by Passive Phase Conjugation
We have demonstrated accurate frequency transfer via an ultra long span optical-fiber link by passive phase conjugation, which is based on frequency mixing. Combing with the phase-lock-loop, our compensation technique can eliminate the effect of phase noise that introduced during the optical-fiber transmission, so the phase of remote signal is synchronized to the phase of local reference signal. The transfer stability of our experiment with 2.4 GHz frequency signal through a 1007 km fiber link is 6.9_10-14/s and 4.1_10-16/104s.
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