Digital filters underpin the performance of coherent optical receivers which exploit digital
signal processing (DSP) to mitigate transmission impairments. We outline the principles of …

Recent progress in coherent optical communication, a field revived by advances in digital
signal processing (DSP), is reviewed. DSP-based phase and polarization management …

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

Digital coherent receivers have caused a revolution in the design of optical transmission
systems, due to the subsystems and algorithms embedded within such a receiver. After …

This letter explores the Gram-Schmidt orthogonalization procedure (GSOP) for
compensation of quadrature imbalance in an optical 90 deg hybrid. We present computer …

The advent of digital signal processing (DSP) to optical coherent detection means that more
phase estimation options are available, compared to the earlier generation where phase …

We discuss the use of a coherent digital receiver for the compensation of linear transmission
impairments and polarization demultiplexing in a transmission system compatible with a …

Accurate digital frequency offset estimator for coherent PolMux QAM transmission systems
Page 1 Accurate Digital Frequency Offset Estimator for Coherent PolMux QAM …

We review and study several single carrier based multi-level and multi-dimensional coding
(ML-MDC) technologies recently demonstrated for spectrally-efficient 100-Gb/s transmission …

Digital twin (DT) modeling is essential to optical fiber communication systems, particularly for
enhancing system performance, controlling the system in real time, and understanding …