Open AccessSimultaneous demultiplexing of 2 × PDM-PAM4 signals using simplified receiver
Author(s) -
Yan Pan,
Lianshan Yan,
Anlin Yi,
Lin Jiang,
Wei Pan,
Bin Luo
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.001869
Subject(s) - multiplexing , polarization division multiplexing , optics , gigabit , physics , transmission (telecommunications) , polarization (electrochemistry) , scrambling , amplitude , computer science , wavelength division multiplexing , telecommunications , algorithm , wavelength , chemistry
Simultaneous transmission of two polarization-division-multiplexing four-level pulse-amplitude-modulation (2 × PDM-PAM4) signals is proposed, and a simplified receiver is used for demultiplexing two data streams. Experimental results at 160-Gbit/s show that the power penalty of each data stream is ~0.4-dB (back-to-back) and ~1-dB (25-km transmission) compared with the single PDM system. Furthermore, the stabilization of the proposed scheme is investigated. The BER fluctuation is <0.5-dB at a polarization scrambling rate up to 1417.5-deg/s.