Affiliation:
1. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
Abstract
Optical parameter estimation based on the data obtained by coherent optical receivers is critical for optical performance monitoring (OPM) and the stable operation of the receiver digital signal processing (DSP). A robust multi-parameter estimation is intricate due to the interference of various system effects. By resorting to the cyclostationary theory, we are able to formulate a chromatic dispersion (CD), frequency offset (FO), and optical signal-to-noise ratio (OSNR) joint estimation strategy that is resistant to the random polarization effect, including polarization mode dispersion (PMD) and polarization rotation. The method uses data directly after the DSP resampling and matched filtering. Both numerical simulation and field optical cable experiment validate our method.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Science and Technology Planning Project of Guangdong Province
Subject
Atomic and Molecular Physics, and Optics