The Q‐switching performance of BP/SnSe 2 heterojunction saturable absorber in Er‐doped fiber laser

In this paper, we report the first Q‐switching operation utilizing black phosphorus (BP)/SnSe 2 heterojunction as the saturable absorber (SA) in an Er‐doped fiber laser. The BP/SnSe 2 heterojunction was prepared by the liquid phase combination method and its properties were observed. Stable Q‐switch...

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Bibliographic Details
Published in:Microwave and optical technology letters 2024-01, Vol.66 (1)
Main Authors: Lie, Shi, Xu, Baohao, Sun, Wanggen, Qin, Peng, Chen, Kang, Wang, Jing, Tang, Wenjing, Xia, Wei
Format: Article
Language:English
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Summary:In this paper, we report the first Q‐switching operation utilizing black phosphorus (BP)/SnSe 2 heterojunction as the saturable absorber (SA) in an Er‐doped fiber laser. The BP/SnSe 2 heterojunction was prepared by the liquid phase combination method and its properties were observed. Stable Q‐switching operations were achieved based on the BP/SnSe 2 SA. The maximum peak power of 71.27 mW and the minimum pulse width of 910 ns were produced, respectively. This paper demonstrates the pulse modulation characteristics of BP/SnSe 2 heterojunction SA in the midinfrared region for the first time, laying an important foundation for the application of heterojunction based on BP and two‐dimensional transition metal dichalcogenides.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.33668