Previous investigations have revealed that the impairments of the cross-phase modulation
(XPM) in dense wavelength-division multiplexing (DWDM) systems include two aspects: the …

An empirical phase noise channel model suitable for performance evaluation of high
spectrally efficient modulations in 100G long-haul coherent optical transmission systems …

In this letter, we demonstrate a 78.8-km wavelength-division-multiplexing passive optical
network supporting converged transport of 21.4-Gb/s nonreturn-to-zero differential …

Carrier phase offset tracking, a crucial operation in analog signal processing-based
coherent receivers, aims at the measurement and correction of the time-varying phase offset …

A pilot-symbols-aided phase unwrapping (PAPU), which utilizes the time-division
multiplexed pilot symbols that are transmitted with data, is proposed to do cycle slip …

Featured Application In this paper, we put forward an algorithm switching orthogonalization
procedure (ASOP) according to the quality of the in-phase and quadrature signal branches …

A joint carrier recovery scheme for polarization division multiplexing (PDM) coherent optical
transmission system is proposed and demonstrated, in which the extended Kalman filter …

We propose an improved pilot-aided (PA) optical carrier phase recovery (CPR) method,
using average operation for noise suppression in PA coherent systems. Performance of this …

The rapid evolution of long-haul optical communications systems, witnessed in the last five
years, is due to the gradual adoption of spectrally efficient, multilevel modulation formats, in …

The problem of optimal symbol detection in the presence of laser phase noise is studied, for
uncoded polarization-multiplexed fiber-optic transmission. To this end, the maximum a …