Optical Adaptive LMS Equalizer with an Opto-electronic Feedback Loop

TL;DR

This paper introduces a photonic adaptive LMS equalizer with an opto-electronic feedback loop, enabling real-time dispersion compensation for long-distance fiber optic communication using a photonic integrated chip.

Contribution

It presents a novel photonic adaptive LMS equalizer with a feedback loop for optical fiber dispersion compensation, integrating the filter's weight updating directly on a photonic chip.

Findings

Successfully compensates dispersion over 30 km fiber

Demonstrates real-time adaptive filtering in photonic integrated circuits

Improves optical communication performance with integrated photonics

Abstract

We propose a photonic adaptive Least-Mean-Squares equalizer with an opto-electronic feedback loop to determine the updating of an optical Finite-Impulse-Response filter's weights, enabling dispersion compensation introduced by 30-km fiber based on our photonic integrated chip.