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
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)
Publication Title
Physica Scripta
Volume
99
Issue
12
Publisher
IOP Publishing
Publisher Location
TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND