Generation of mode-locked thulium-doped fiber laser in 2.0-mu m wavelength operation by polymer-coated iron phosphorus trisulfide (FePS3)-based saturable absorber
Document Type
Article
Publication Date
4-1-2022
Abstract
In this study, a mode-locked, Thulium-doped fiber (TDF) laser operating in the 2.0-mu m wavelength region and using an iron phosphorus trisulfide (FePS3) overlay with a polymercoated on an arc-shaped fiber was successfully demonstrated. The mode-locked pulses were generated at a central wavelength of 1935.7 nm and a 3-dB bandwidth of 2.68 nm. Its soliton-like nature was validated by the presence of Kelly's sidebands in the observed optical spectrum. The maximum repetition rate of the TDF mode-locked laser was 10.95 MHz, with a pulse width of 1.47 ps. The generated mode-locked output has significant stability, with no observable shifts in the central wavelength or Kelly's sidebands over the measurement time due to the polymer's protective layer. The experimental results show that a polymer-coated FePS 3 arc-shaped fiber can be used as a SA device to produce stable and long-term mode-locked pulses in the TDF-based fiber laser.
Keywords
Mode-locked laser, Iron phosphorus trisulfide (FePS3), Polymer
Divisions
Science
Funders
Universiti Malaya[RU 005-2021],Universiti Malaya[RK 021-2019],Ministry of Education, Malaysia[PRC-2014]
Publication Title
IEEE Journal of Quantum Electronics
Volume
58
Issue
2
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Publisher Location
445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA