High-performance γ-MnO2 Dual-Core, Pair-Hole Fiber for Ultrafast Photonics
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Xiaohui Li,
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Xiangzhen Huang,
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Yueheng Han,
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Enci Chen,
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Penglai Guo,
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Wenmin Zhang,
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Mingqi An,
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Zhiwen Pan,
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Qian Xu,
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Xiaoxiao Guo,
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Xiwei Huang,
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Yishan Wang,
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and Wei Zhao
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Abstract
Manganese dioxide (MnO2) is a widely used and well-studied 3-dimensional (3D) transition metal oxide,
which has advantages in ultrafast optics due to large specific surface area, narrow bandgap, multiple
pores, superior electron transfer capability, and a wide range of light absorption. However, few studies have
considered its excellent performance in ultrafast photonics. γ-MnO2 photonics devices were fabricated
based on a special dual-core, pair-hole fiber (DCPHF) carrier and applied in ultrafast optics fields for the
first time. The results show that the soliton molecule with tunable temporal separation (1.84 to 2.7 ps) and
600-MHz harmonic solitons are achieved in the experiment. The result proves that this kind of photonics
device has good applications in ultrafast lasers, high-performance sensors, fiber optical communications,
etc., which can help expand the prospect of combining 3D materials with novel fiber for ultrafast optics
device technology.
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