MoTe2-PVA as saturable absorber for passively Q-switched thulium-doped fluoride and erbium-doped fiber laser
MoTe2-PVA as saturable absorber for passively Q-switched thulium-doped fluoride and erbium-doped fiber laser
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DOI：
10.1016/j.ijleo.2021.167157
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发表时间：
2021-10
期刊：
影响因子：
3.1
通讯作者：
H. Ahmad;N. F. Azmy;N. Yusoff;S. A. Reduan;S. N. Aidit;L. Bayang;M. Z. Samion
中科院分区：
文献类型：
--
作者：
H. Ahmad;N. F. Azmy;N. Yusoff;S. A. Reduan;S. N. Aidit;L. Bayang;M. Z. Samion
Passively Q-switched fiber lasers in the S-and C-band region were demonstrated using molybdenum ditelluride (MoTe 2) as the saturable absorber (SA). The MoTe 2 was prepared using liquid phase exfoliation method, which was then embedded in the polyvinyl alcohol (PVA) polymer to form a MoTe 2 thin film SA. By incorporating the MoTe 2 SA in the thulium-doped fluoride fiber laser (TDFFL) and erbium-doped fiber laser (EDFL) cavities, stable Q-switched pulses were observed in the S-band and C-band region with microsecond pulse durations and tens of kilohertz repetition rate. The modulation depth and the saturation intensity of the MoTe 2 SA were∼ 38% and∼ 0.314 MWcm− 2, respectively. The Q-switched operation can be tuned by employing a tunable bandpass filter (TBPF), covering the S-band and C-band region from 1453 nm to 1572 nm. Thus, the finding validates the feasibility of MoTe 2 as a promising SA for a broadband optical applications.
