Combating the destructive effects of power-fading in fiber-optic systems using direct-
detection is the key for increasing the transmission rates and/or reach. Some of the solutions …

Intensity modulation with direct detection (IM/DD) provides a low-cost solution for data center
optical interconnects. To achieve higher data rate, Tomlinson-Harashima precoding (THP) is …

Faster-than-Nyquist (FTN) transmission applies non-orthogonal linear modulation to
increase spectral efficiency compared with the well-known orthogonal transmission at …

The transition to the edge-cloud era makes ultra-high data rate signals indispensable for
covering the immense and increasing traffic demands created. This ecosystem also seeks …

We propose and experimentally demonstrate a Tomlinson–Harashima precoding (THP)
scheme with the coefficients computed by simulations. It realizes spectrally efficient faster …

We introduce a precise Tx-side non-linear distortion compensation scheme for higher-order
PAM signals, and experimentally show its effectiveness in 28 GBaud PAM-8 and 40 GBaud …

We experimentally prove the effectiveness of Tomlinson-Harashima Precoding for IM/DD
Nyquist PAM signals with severe transmitter-side bandwidth limitation despite the increase …

The needs for ultra-high speed short-to medium-reach optical fiber links beyond 100-Gbit/s
is becoming larger and larger especially for intra and inter-data center applications. In recent …

A 10 Gb/s PAM-4 transmitter (TX) with a modulo-based equalization technique is presented.
The proposed feed-forward Tomlinson-Harashima precoding (FF-THP) scheme takes …

We present an approach for channel equalization based on a variation of the Tomlinson-
Harashima Precoder (THP) suited for practical Visible Light Communication (VLC) channels …