Chinese Optics Letters, 2020, 18 (2): 020603, Published Online: Feb. 12, 2020
Stable RF transfer over a fiber-optic ring with DSBCS modulation and a DSB RF signal Download: 654次
Abstract
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.
Pingyang Shi, Guiling Wu, Liang Hu, Qi Li, Jianping Chen. Stable RF transfer over a fiber-optic ring with DSBCS modulation and a DSB RF signal[J]. Chinese Optics Letters, 2020, 18(2): 020603.