• Journal of Terahertz Science and Electronic Information Technology
  • Vol. 20, Issue 5, 407 (2022)
ZHANG Lei1、2、*, LIANG Xiaodong1、2, LI Shaobo1、2, WANG Dongjie1、2, LIU Yandan1、2, XING Guansu1、2, and LUO Qingsong2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: 10.11805/tkyda2021346 Cite this Article
    ZHANG Lei, LIANG Xiaodong, LI Shaobo, WANG Dongjie, LIU Yandan, XING Guansu, LUO Qingsong. Phase stabilized transmission over optical fiber link based on PID feedback control[J]. Journal of Terahertz Science and Electronic Information Technology , 2022, 20(5): 407 Copy Citation Text show less

    Abstract

    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.
    ZHANG Lei, LIANG Xiaodong, LI Shaobo, WANG Dongjie, LIU Yandan, XING Guansu, LUO Qingsong. Phase stabilized transmission over optical fiber link based on PID feedback control[J]. Journal of Terahertz Science and Electronic Information Technology , 2022, 20(5): 407
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