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 ...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.展开更多
基金supported by the National Natural Science Foundation of China(NSFC)(Nos.61627817 and 61535006).
文摘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.
