Kramers Kronig PAM transceiver and two-sided polarization-multiplexed Kramers Kronig transceiver

TL;DR

This paper introduces two Kramers Kronig-based transceiver schemes, one for low-cost high-throughput applications using PAM and digital phase reconstruction, and another for high-channel-count systems aiming to simplify receiver complexity.

Contribution

It presents novel transceiver designs leveraging KK detection for improved spectral efficiency and reduced receiver complexity in optical communication systems.

Findings

Enhanced spectral efficiency with digital phase reconstruction

Reduced optical components in high-channel-count systems

Improved receiver simplicity for coherent systems

Abstract

We propose two transceiver schemes based on Kramers Kronig (KK) detection. One targets low-cost high-throughput applications and uses PAM transmission in combination with direct detection and digital reconstruction of the optical phase. This scheme allows digital compensation of chromatic dispersion and provides a significant improvement in terms of spectral efficiency, compared to conventional PAM transmission. The second scheme targets high-channel-count coherent systems with the aim of simplifying the receiver complexity by reducing the optical components count.