Fiber-based multiple-access frequency synchronization via 1f

Fiber-based multiple-access frequency synchronization via 1f–2f dissemination

Zhu Xi^{1, 3}, Wang Bo^{1, 2, †,}, Gao Chao^{1, 2}, Wang Li-Jun^{1, 2, 3}

Schematic diagram of the mid-frequency aperture array configuration in SKA1 and a certain frequency dissemination fiber link. The blue points represent the distributed antennas. TX: the transmitting site represented by the red point. RX: the receiving site represented by the purple point. DX: the download site represented by the green point.