TY - GEN
T1 - Ultra- Fast Azimuth Rotation Tracking of SOP Evolution Based on Superimposed FrFT Training Sequence
AU - Wang, Li
AU - Cheng, Zhi
AU - Wang, Jingchuan
AU - Yu, Changyuan
AU - Tang, Ming
AU - Zhou, Jing
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/11
Y1 - 2023/11
N2 - Fractional Fourier transform (FrFT) training sequences (TSs) have been proposed to achieve ultra-fast azimuth rotation tracking of state of polarization (SOP) prior to adaptive equalization (AEQ). The FrFT TSs are superimposed on signal without sacrificing spectrum efficiency. By analyzing energy distribution of aggregated peaks of FrFT TSs in fractional domain, the azimuth rotation estimation can be achieved. The feasibility of the proposed scheme has been verified through experiment conducted on 30 GBaud/s dual-polarization (DP) quadrature phase shift keying (QPSK) system. The proposed azimuth rotation estimation method can reach the 5.5 Mrad/s rotation tracking with root mean square error (RMSE) of 447.2 kra d/s. Moreover, the optical signal to noise ratio (OSNR) penalty due to superimposed FrFtTs is less than 1dB.
AB - Fractional Fourier transform (FrFT) training sequences (TSs) have been proposed to achieve ultra-fast azimuth rotation tracking of state of polarization (SOP) prior to adaptive equalization (AEQ). The FrFT TSs are superimposed on signal without sacrificing spectrum efficiency. By analyzing energy distribution of aggregated peaks of FrFT TSs in fractional domain, the azimuth rotation estimation can be achieved. The feasibility of the proposed scheme has been verified through experiment conducted on 30 GBaud/s dual-polarization (DP) quadrature phase shift keying (QPSK) system. The proposed azimuth rotation estimation method can reach the 5.5 Mrad/s rotation tracking with root mean square error (RMSE) of 447.2 kra d/s. Moreover, the optical signal to noise ratio (OSNR) penalty due to superimposed FrFtTs is less than 1dB.
KW - optical performance monitoring
KW - short-reach transmission
KW - ultra-fast SOP rotation tracking
UR - http://www.scopus.com/inward/record.url?scp=85183293185&partnerID=8YFLogxK
U2 - 10.1109/ACP/POEM59049.2023.10369682
DO - 10.1109/ACP/POEM59049.2023.10369682
M3 - Conference article published in proceeding or book
AN - SCOPUS:85183293185
T3 - 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
BT - 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023
Y2 - 4 November 2023 through 7 November 2023
ER -