摘要
We propose a radio frequency(RF)transfer technique with passive phase noise compensation over a fiber-optic ring.By adopting different frequencies and same wavelength transmission and double sideband(DSB)with carrier suppression(DSBCS)modulation,the impact of backscattering can be effectively suppressed.A stable RF signal can be obtained via frequency mixing at an arbitrary access site along the fiber-optic ring.As the two directional transmissions adopt the same fiber and same wavelength from the same laser,the bidirectional propagation symmetry can be maximally guaranteed.We experimentally demonstrate 2 GHz RF signal transfer along a 100 km standard single-mode fiber-optic ring.
作者
Pingyang Shi
Guiling Wu
Liang Hu
Qi Li
Jianping Chen
师平洋;吴龟灵;胡亮;李奇;陈建平(Shanghai Institute for Advanced Communication and Data Science,State Key Laboratory of Advanced Optical Communication Systems and Networks,Department of Electronic Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory of Navigation and Location-Based Services,Shanghai 200240,China)
基金
supported by the National Natural Science Foundation of China(NSFC)(Nos.61627817 and 61535006).
