%0 Journal Article
%A LI Zhi-pei
%A LIU Bo
%A WANG Xi-shuo
%A XIN Xiang-jun
%A ZHANG Qi
%T A Modulation Format Identification Method for Probabilistic Shaping Optical Transmission System
%D 2019
%R 10.13190/j.jbupt.2018-014
%J Journal of Beijing University of Posts and Telecommunications
%P 79-82,126
%V 42
%N 3
%X A blind modulation format identification method based on fourth-power eigenvalues is proposed for variable-rate optical transmission systems employing probabilistic shaping technology and high-order modulation formats. By using the fast Fourier transformation (FFT) peak value and variance after the received signal passes through fourth-power operation, accurate identification of high order modulation formats with probabilistic shaping and polarization multiplexing can be realized. A high-speed long-haul coherent optical transmission system is built on the platform of the joint simulation to verify the effectiveness of the method.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2018-014