Ytterbium- and chromium-doped fibre laser: from chaotic self-pulsing to passive Q-switching

TL;DR

This paper demonstrates the stabilization of a chaotic ytterbium-doped fibre laser into a passively Q-switched mode using a chromium-doped saturable absorber, resulting in stable high-repetition-rate pulses.

Contribution

It introduces a novel all-fibre laser configuration that converts chaotic self-pulsing into stable Q-switched operation with a chromium-doped saturable absorber.

Findings

Achieved stable, high-repetition-rate pulse trains

Successfully stabilized chaotic laser dynamics

Demonstrated all-fibre laser with passively Q-switched operation

Abstract

A spontaneously chaotic, self-pulsing ytterbium-doped fibre laser is partially stabilized into the passively Q-switched mode of operation using a chromium-doped saturable absorber fibre. This original all-fibre laser produces sustained and stable trains of smooth pulses at high repetition rate.