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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2021 Vol.22 No.3 P.296-302
Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber lasers
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.
Key words: Rhenium disulfide, Saturable absorber, Two-dimensional materials, Q-switched fiber laser
陶丽丽1，周博2,3,4
1广东工业大学材料与能源学院，中国广州市，510006
2华南理工大学发光材料与器件国家重点实验室，中国广州市，510641
3华南理工大学广东省光纤激光材料与应用技术重点实验室，中国广州市，510641
4华南理工大学广东省特种光纤材料与器件工程技术研究开发中心，中国广州市，510641
摘要：本文通过液相剥离法从自制二硫化铼粉末中制备二硫化铼超薄纳米片，并将其应用在调Q掺铒光纤激光器中。XRD、Raman和XPS表征结果证明具有层状结构二硫化铼的成功合成；通过SEM和AFM表征发现所制备的二硫化铼纳米片横向尺寸低于200 nm，厚度小于5 nm。将二硫化铼/PVA复合薄膜作为可饱和吸收体放入掺铒光纤激光器中可以获得调Q脉冲输出，脉冲宽度最窄为2.4 μs，输出功率为1.25 mW，揭示了二硫化铼在Q调制方面的潜在应用价值。
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DOI:
10.1631/FITEE.2000339
CLC number:
TN248; V254.2
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On-line Access:
2021-03-08
Received:
2020-07-10
Revision Accepted:
2020-10-05
Crosschecked:
2020-11-24