Journal
JOURNAL OF LUMINESCENCE
Volume 244, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jlumin.2021.118704
Keywords
Fiber laser; Passively Q-switched; Antimony selenide; Saturable absorption
Categories
Funding
- Zhejiang Provincial Natural Science Foundation of China [LR20A050001]
- National Natural Science Foundation of China [11874324,12075210]
- Scientific Research and Developed Fund of Zhejiang AF University [2021FR0009]
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In this study, Antimony selenide (Sb2Se3) nanorods were successfully prepared by the hot solvent method, demonstrating excellent photoelectric properties and nonlinear optical performance. Integration of Sb2Se3 into fiber lasers enabled Q-switching with high single pulse energy and low self-starting threshold.
In this paper, Antimony selenide (Sb2Se3) nanorods are prepared by the hot solvent method, the Sb2Se3 is detected by near-infrared detectors with good photoelectric properties. Afterwards its nonlinear optical performance was tested, compared with metal chalcogen compounds, the prepared Sb2Se3 has great bandwidth saturation absorption response, higher modulation depth (43.27%) and lower saturation intensity (2.13 MW/ cm(2)), which is very suitable for making saturable absorber (SA) devices. In addition, we integrate Sb2Se3 SA into a 1.5 mu m erbium-doped fiber laser and realize Q-switching for the first time. Our results show the obtained Q switched laser has high single pulse energy and low self-starting threshold and good stability. Moreover, by adjusting the polarization state, a stable double wavelength spectrum appears. This indicates that Sb2Se3 has outstanding application potential in optical switching devices and pulse laser engineering.
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