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Passively Q-switched Ytterbium-doped fiber laser based on broadband multilayer Platinum Ditelluride (PtTe2) saturable absorber

机译:基于宽带多层二碲化铂(PtTe2)饱和吸收体的无源调Q掺Y光纤激光器

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摘要

Two-dimensional (2D) layered Platinum Ditelluride (PtTe2), a novel candidate of group 10 transition-metal dichalcogenides (TMDs), which provides enormous potential for pulsed laser applications due to its highly stable and strong nonlinear optical absorption (NOA) properties. PtTe2 saturable absorber (SA) is successfully fabricated with firstly demonstrated the passively Q-switched laser operation within a Yb-doped fiber laser cavity at 1066 nm. Few layered PtTe2 is produced by uncomplicated and cost-efficient ultrasonic liquid exfoliation and follow by incorporating into polyvinyl alcohol (PVA) polymer to form a PtTe2-PVA composite thin film saturable absorber. The highest achieved single pulse energy is 74.0 nJ corresponding to pulse duration, repetition rate and average output power of 5.2 μs, 33.5 kHz and 2.48 mW, respectively. This work has further exploited the immeasurable utilization potential of the air stable and broadband group 10 TMDs for ultrafast photonic applications.
机译:二维(2D)层状二碲化铂金(PtTe2),是第10组过渡金属二卤化物(TMD)的新型候选物,由于其高度稳定和强大的非线性光学吸收(NOA)特性,为脉冲激光应用提供了巨大的潜力。成功地制造了PtTe2饱和吸收体(SA),并首次证明了在1066bnm的掺Yb光纤激光器腔内进行被动Q开关激光操作。很少层的PtTe2是通过不复杂且经济高效的超声液体剥离制成的,然后将其掺入聚乙烯醇(PVA)聚合物中以形成PtTe2-PVA复合薄膜可饱和吸收剂。达到的最高单脉冲能量为74.0 nJ,分别对应于脉冲持续时间,重复率和平均输出功率5.2μs,33.5 kHz和2.48 mW。这项工作进一步开发了空气稳定和宽带10组TMD在超快光子应用中不可估量的利用潜力。

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