1.The 54th Institute，China Electronics Technology Group Corporation，Shijiazhuang Hebei 050081，China;2.Hebei Key Laboratory of Photonic Information Technology and Application，Shijiazhuang Hebei 050081，China
Aiming at the phase jitter caused by environmental factors such as temperature and vibration changes in the process of optical fiber time-frequency transmission, a high-precision phase stability stress technology based on Proportional-Integral-Derivative(PID) feedback control is proposed. Michelson interferometer is employed for real-time phase detection. The real-time compensation is carried out through piezoelectric ceramics. This method can effectively overcome the bottleneck in compensation accuracy and speed of traditional phase discrimination and delay line. After calculation of environmental factors and PID compensation simulation, the transmission delay measurement accuracy of this method in 800 m optical fiber transmission is 2.2 fs, the transmission delay stability is <8.8 fs, and the initial state time is within 0.088 s under the external axial tension less than 100 N.
张磊,梁晓东,李少波,王东杰,刘彦丹,邢贯苏,罗青松.基于PID反馈控制的光载射频稳相传输技术[J]. Journal of Terahertz Science and Electronic Information Technology ,2022,20(5):407~413Copy