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

Lip, Zhan Hong and Cheng, Xiau San and Chi, Mingzhi and Sin Jin, Tan and Latiff, Anas Abdul and Harun, Sulaiman Wadi (2024) Passively generated Q-switched pulses fiber laser in 2 μm wavelength using MXene Ti3C2Tx and Ti2CTx saturable absorber. Physica Scripta, 99 (12). p. 125536. ISSN 0031-8949, DOI https://doi.org/10.1088/1402-4896/ad8e8b.

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Official URL: https://doi.org/10.1088/1402-4896/ad8e8b

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.

Item Type: Article
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)
Uncontrolled Keywords: pulses; MXene; fiber laser
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Mar 2025 02:56
Last Modified: 17 Mar 2025 02:56
URI: http://eprints.um.edu.my/id/eprint/47263

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