Ti3C2 MXene as an optical modulator in a Thulium/Holmium-doped fiber laser

Document Type

Article

Publication Date

5-1-2022

Abstract

A Ti3C2 MXene based saturable absorber (SA) was demonstrated as an optical modulator to enable Q-switching and mode-locking in a Thulium-Holmium doped fiber laser (THDFL) cavity. Two different SA configurations were studied, with one SA in the form of a polyvinyl alcohol (PVA) polymer host thin film and the other one with the Ti3C2 MXene deposited along with a D-shaped fiber. For the case of the Ti3C2-PVA SA, only Q-switched was obtained at the threshold pump power of 126.4 mW. The generated Q-switched pulses had a center wavelength of 1961.4 nm with a maximum repetition rate and pulse energy of 42.5 kHz and 37.4 nJ and a minimum pulse duration of 2.4 mu s. For the Ti3C2 MXene coated D-shaped fiber SA, mode-locking was achieved at a pump power of 209.9 mW with a center wavelength of 1915.9 nm and having a repetition rate and pulse width of 12.6 MHz and 1.89 ps, respectively. The experimental results indicate that the Ti3C2 MXene based SA could generate Q switched pulses when in the form of a thin film but can only be used as a mode-locker when the SA material is coated along the surface of the D-shaped fiber.

Keywords

D-shape fiber, Mode-locked, MXene, Q-switched, Saturable absorber, Thulium/Holmium-doped fiber laser

Publication Title

Optics & Laser Technology

Divisions

PHYSICS

Funders

Universiti Malaya (Grant No. RK021-2019),Universiti Malaya (Grant No. TOP100PRC),Universiti Malaya (Grant No. RU005-2021),Ministry of Education, Malaysia (Grant No. HiCoE Phase II)

Volume

149

Publisher

Elsevier

Publisher Location

THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND

This document is currently not available here.

Share

COinS