Digital coherent transceivers have revolutionized optical fiber communications due to their
superior performance offered compared to intensity modulation and direct detection based …

We present computationally-efficient implementation techniques of multiple-input multiple-
output (MIMO) frequency-domain equalization (FDE) that deals with a modal dispersion …

Simultaneous polarization and phase noise tracking and compensation is proposed based
on an unscented Kalman filter (UKF). We experimentally demonstrate the tracking under …

The performance of long-haul coherent optical fiber transmission system is significantly
affected by the equalization enhanced phase noise (EEPN), due to the interaction between …

We propose a novel and efficient multiplierless finite-impulse response (FIR)-based filter
architecture for chromatic dispersion equalization (CDE) in coherent optical communication …

We introduce a new drift model for slow environmental perturbation affecting modal coupling
in optical multi-mode fibers. This model preserves the mode coupling strength asymmetries …

The emergence of advanced technologies has spurred the development of high-capacity,
long-distance, and high-speed coherent optical communication systems. However …

A design method for chromatic dispersion compensation filters realized using overlap-save
processing in the frequency domain is proposed. Based on the idea to use the values that …

A frequency-domain multiple-input multiple-output (FD-MIMO) equalizer employing a
momentum-based gradient descent update algorithm is proposed for polarization …

We report a reduced complexity single polarization all-pass modulation scheme that uses
overlap and discard to implement continuous transmission. We find that transmitter NSRs …