Passive phase noise compensation for fiber-optic radio frequency transfer with a nonsynchronized source
We propose a passive compensation fiber-optic radio frequency (RF) transfer scheme with a nonsynchronized RF source stable during a round-trip time, which can avoid high-precision phase-locking and efficiently suppress the effect of backscattering only using two wavelengths at the same time. A stable frequency signal is directly reproduced by frequency-mixing at the remote site. The proposed scheme is validated by the experiment over a 40 km single mode fiber spool using nonsynchronized common commercial RF sources. The influence of the stability of nonsynchronized RF sources on the frequency transfer is investigated over different length fiber links.
Shanghai Jiao Tong University
Lin Tiancheng,Wu Guiling,Li Hongwei,Wang Guoyong,Chen Jianping. Passive phase noise compensation for fiber-optic radio frequency transfer with a nonsynchronized source[J].Chinese Optics Letters,2018,16(10):10.