Polarization dynamics, stability and tunability of a dual-comb polarization-multiplexing ring-cavity fiber laser

TL;DR

This paper demonstrates a polarization-multiplexed fiber laser system producing two stable, tunable optical frequency combs with high extinction ratio, and studies its polarization dynamics for potential applications in spectroscopy and polarimetry.

Contribution

It introduces a novel dual-comb fiber laser with polarization multiplexing, tunability, and stability, along with an experimental analysis of its polarization dynamics.

Findings

Generation of two stable, tunable optical frequency combs

High extinction ratio achieved in the system

Experimental insights into polarization dynamics

Abstract

In this paper, we demonstrate the polarization-multiplexed system capable of generating two stable optical frequency combs with tunable frequency differences and a large extinction ratio. Also, the polarization dynamics of a dual-frequency comb generated from a single mode-locked Er-doped fiber laser are experimentally studied. The obtained results will extend the application to areas such as polarization spectroscopy and dual-comb-based polarimetry.