Metallic transition metal dichalcogenide-based single-frequency fiber lasers with sub-kHz linewidths

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-03-22 DOI:10.1016/j.optmat.2025.116941

Yiyu Gan, Wenyao Zhang, Qiao Wen

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引用次数: 0

Abstract

MTe₂ (M = V, Nb), with remarkable physical features, is a typical layered metallic transition metal dichalcogenide that has garnered a lot of interest. It has established a wide range of applications in the disciplines of advanced electronic devices, magnetics, and electrochemistry. Nevertheless, its utilization in single frequency fiber lasers has been rather restricted. MTe₂ (M = V, Nb) samples were exfoliated into a few layers by using liquid phase exfoliation. Next, by carefully depositing MTe2 (M = V, Nb) nanosheets onto the surface of D-shaped fibers, we investigated the potential applications of MTe₂ (M = V, Nb)-based transient bragg grating. This resulted in the successful development of two stable single-frequency fiber lasers based on VTe₂ and NbTe₂, respectively. The center wavelengths of these SFFLs are approximately 1550 nm. The linewidth of NbTe₂, which is the narrowest ever reported for an SFFL based on low-dimensional materials, was measured to be approximately 354.5 Hz, with a signal-to-noise ratio of 72.672 dB. The signal-to-noise ratio of VTe₂ is about 75.22 dB, the highest observed among lasers based on low-dimensional materials.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.