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Breaking the limit of maximum effective area for robust single-mode propagation in optical fibers

机译:打破最大有效面积限制,实现光纤中可靠的单模传播

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摘要

We propose and demonstrate a novel approach in optical fiber design in which the optical waveguide is formed by a ring of large air holes surrounding a solid silica core. With an appropriate choice of the geometrical configuration, robust single-transverse-mode propagation with a record effective area of 1417 (mu)m~(2), verified by various methods, was demonstrated. A breakthrough was made toward the development of practical ultra-high-power fiber lasers as we observed negligible loss of the fiber at bending diameters as small as 15 cm.
机译:我们提出并证明了一种新颖的光纤设计方法,其中,光波导由围绕固体硅石芯的大气孔环形成。通过适当选择几何构型,通过各种方法验证了具有记录有效面积1417μm〜(2)的鲁棒单横模传播。我们观察到在弯曲直径小至15 cm时光纤的损耗可忽略不计,因此在实用超高功率光纤激光器的开发方面取得了突破。

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