Preparation of ultrathin ReS<sub>2</sub> nanosheets and their application to Q-switched Er-doped fiber lasers

Junshan HE; Guohua ZENG; Shaoxian LIU; Haiming LU; Ruixian XIE; Jingjing QI; Lili TAO; Bo ZHOU

doi:10.1631/FITEE.2000339

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Front. Inform. Technol. Electron. Eng ›› 2021, Vol. 22 ›› Issue (3) : 296-302. DOI: 10.1631/FITEE.2000339

Orginal Article

Preparation of ultrathin ReS₂ nanosheets and their application to Q-switched Er-doped fiber lasers

Junshan HE¹^,²^,³^,⁴ ,
Guohua ZENG¹ ,
Shaoxian LIU¹ ,
Haiming LU¹ ,
Ruixian XIE¹ ,
Jingjing QI¹ ,
Lili TAO¹ ,
Bo ZHOU²^,³^,⁴

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Abstract

We study the exfoliation of ultrathin ReS₂ nanosheets from the prepared ReS₂ powder and their application to Q-switched Er-doped fiber laser. XRD, Raman, and XPS spectra confirm the successful preparation of the layered ReS₂. SEM images show that the obtained ReS₂ sheets have lateral size below 200 nm. The thickness of the ReS₂ nanosheets is smaller than 5 nm according to the AFM results. ReS₂/PVA film is applied as a saturable absorber in an Er-doped Q-switched fiber laser, and a minimum pulse duration of 2.4 μs and an output power of 1.25 mW are obtained, indicating the potential application to Q-switched lasers.

Keywords

Rhenium disulfide / Saturable absorber / Two-dimensional materials / Q-switched fiber laser

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Junshan HE, Guohua ZENG, Shaoxian LIU, Haiming LU, Ruixian XIE, Jingjing QI, Lili TAO, Bo ZHOU. Preparation of ultrathin ReS₂ nanosheets and their application to Q-switched Er-doped fiber lasers. Front. Inform. Technol. Electron. Eng, 2021, 22(3): 296‒302 https://doi.org/10.1631/FITEE.2000339