Phase regeneration of QPSK signals based on Kerr soliton combs in a highly nonlinear optical fiber

TL;DR

This paper presents an all-optical phase regeneration method for QPSK signals using Kerr soliton combs, improving the performance of optical communication systems through phase-sensitive amplification.

Contribution

It introduces a novel Kerr soliton comb-based phase regeneration technique for QPSK signals, enabling improved relay and reception in optical communications.

Findings

Successful generation of Kerr soliton combs at the receiver side

Effective phase regeneration of QPSK signals demonstrated

Enhanced relay and reception performance in optical systems

Abstract

We demonstrate an all-optical phase regeneration technique based on Kerr soliton combs, which can realize degraded quaternary phase shift keying (QPSK) signal regeneration through phase-sensitive amplification. A Kerr soliton comb is generated at the receiver side of optical communication systems based on a carrier recovery scheme and is used as coherent dual pumps to achieve phase regeneration. Our study will enhance the relay and reception performance of all-optical communication systems.