Generation of pseudo-high-order group velocity locked vector solitons in fiber lasers

TL;DR

This paper reports the experimental generation of pseudo-high-order group velocity locked vector solitons in fiber lasers, demonstrating complex polarization and pulse structures using a SESAM mode locker and polarization-resolved detection.

Contribution

It introduces a novel method to generate and observe pseudo-high-order GVLVS with specific polarization and phase characteristics in fiber lasers.

Findings

Successful generation of two-humped and single-humped pulses with specific phase difference

Use of a SESAM as the mode locker in fiber laser setup

Polarization-resolved system reveals detailed soliton structures

Abstract

We propose and experimentally demonstrate the generation of pseudo-high-order group velocity locked vector solitons (GVLVS) in a fiber laser using a SESAM as the mode locker. With the help of an external all-fiber polarization resolved system, a GVLVS with a two-humped pulse along one polarization while a single-humped pulse along the orthogonal polarization could be obtained. The phase difference between the two humps is 180 degree.