Passively generated Q-switched pulses fiber laser in 2 μm wavelength using MXene Ti3C2Tx and Ti2CTx saturable absorber

Document Type

Article

Publication Date

12-1-2024

Abstract

In this paper, Q-switched Thulium-doped fiber lasers (TDFLs) operating near the 2 mu m region were demonstrated, utilizing a newly developed Thulium doped fiber as the gain medium and titanium carbide MXene as the saturable absorber (SA). The Thulium-doped fiber with a composition of SiO2-GeO2-Al2O3-HfO2-Y2O3-Bi2O3, was produced from a preform prepared using the modified chemical vapor deposition (MCVD) process. Two variations of titanium carbide MXene-based SA, Ti3C2Tx and Ti2CTx, were tested and compared, successfully generating Q-switched pulses. When Ti3C2Tx was used, the Q-switched pulse had a center wavelength of 1934.223 nm, a repetition rate of 55.39 kHz and a pulse width and 1.942 mu s. For Ti2CTx, the generated Q-switched pulse has a center wavelength of 1932.229 nm, with a repetition rate of 77.28 kHz and a pulse width of 1.608 mu s. The signal-to-noise ratio (SNR) values were 45.6 dB and 50.2 dB for Ti3C2Tx and Ti2CTx respectively. Based on the experimental results, both Ti3C2Tx and Ti2CTx show promise as SAs for generating Q-switched pulses in the 2 mu m region within the TDFL cavity.

Keywords

pulses, MXene, fiber laser

Publication Title

Physica Scripta

Divisions

sch_ecs

Funders

Ministry of Higher Education Malaysia (MOHE) Fundamental Research Grant Scheme (FRGS) (FRGS/1/2021/TK0/KDU/02/2),Ministry of Higher Education Malaysia (MOHE) under the Fundamental Research Grant Scheme (FRGS)

Volume

99

Issue

12

Publisher

IOP Publishing

Publisher Location

TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND

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