Journal
OPTICAL FIBER TECHNOLOGY
Volume 71, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2022.102904
Keywords
2D material; Mode-locked; Fiber laser; Bright-dark-bright soliton
Funding
- Shandong Provincial Natural Science Foundation, China [ZR2020QA066, ZR2021QA050, ZR2020MA087]
- National Natural Science Foundation of China [11904213]
- Opening Foundation of Shandong Provincial Key Laboratory of Laser Technology and Application
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Pb3Sn4FeSb2S14, a novel two-dimensional layered material, exhibits excellent properties and air stability. In this study, an erbium-doped fiber laser was successfully fabricated using Pb3Sn4FeSb2S14 as a saturable absorber, demonstrating its effective modulation for bright-dark-bright pulsed laser output.
Pb3Sn4FeSb2S14, a novel two-dimensional layered material, exhibits competitive properties, including a hexag-onal crystal structure and excellent air stability. It has a relatively low bandgap value of 0.65 eV and is similar to the structure of franckeite, showing alternating segregation of Sn-rich and Pb-rich layers. In this paper, an erbium-doped fiber laser was successfully fabricated using the multi-element compound Pb3Sn4FeSb2S14 as a saturable absorber. In the experiment, the bright-dark-bright pulsed laser output was observed when the pump power was between 200 mW and 550 mW. The two central wavelengths were 1559.10 and 1559.78 nm. The fundamental repetition frequency of the pulse was 1.64 MHz and the signal-to-noise ratio (SNR) was about 48 dB. The results demonstrate that Pb3Sn4FeSb2S14 is an effective modulator for bright-dark-bright soliton fiber lasers due to its good nonlinear saturation absorption characteristics.
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