Acta Photonica Sinica, Volume. 50, Issue 4, 32(2021)
High-resolution Microwave Frequency Dissemination via 56 km Optical Fiber Based on Microwave Phase Compensation
This paper reports a microwave frequency dissemination experiment over a 56 km-long-fiber link in the laboratory, exhibiting frequency instabilities of 1.8×10-15/s and 4×10-18/104s. The phase perturbation accumulated along the fiber link is detected by comparing the round-trip signal with the reference signal. By controlling the phase of the transmitted signal in real time, the phase perturbation along the fiber link is compensated. Different modulation frequencies are used to avoid stray reflection effect. To improve the phase noise of the detection signal, we also implemented dispersion compensation.
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Honglei QUAN, Wenyu ZHAO, Wenxiang XUE, Yan XING, Haifeng JIANG, Wenge GUO, Shougang ZHANG. High-resolution Microwave Frequency Dissemination via 56 km Optical Fiber Based on Microwave Phase Compensation[J]. Acta Photonica Sinica, 2021, 50(4): 32
Category: Fiber Optics and Optical Communications
Received: Nov. 3, 2020
Accepted: Dec. 12, 2020
Published Online: May. 11, 2021
The Author Email: ZHAO Wenyu (zhaowy@ntsc.ac.cn)