• Chinese Optics Letters
  • Vol. 20, Issue 2, (2022)
Hu Shaohua, Zhang Jing, Jin Taowei, Zhou Jiahao, Liu Qun, Yi Xingwen, Xu Bo, Qiu Kun
Author Affiliations
  • University of Electronic Science and Technology of China
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    Abstract

    Kalman filtering (KF) has good potential in fast rotation of state of polarization (RSOP) tracking. Different measurement equations cause the diverse RSOP tracking performances. We compare the conventional KF (CKF) and the modified KF (MKF)that have different measurement equations. Semi-theoretical analysis indicates the lower conditional variances of measurement residual and process noise of MKF. Compared with CKF, the MKF has > 3-dB optical signal-to-noise ratio (OSNR) improvement at the 10-MHz scrambling rate in simulation. For MKF, more significant tracking speed improvement exists in lower OSNR. MKF can be smoothly combined with adaptive algorithm, which outperforms adaptive CKF throughout the simulations.
    Manuscript Accepted: Nov. 18, 2021
    Posted: Nov. 19, 2021