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Rectangular-core large-mode-area photonic crystal fiber for high power applications: design and analysis

机译:用于高功率应用的矩形芯大模式面积光子晶体光纤:设计和分析

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A rectangular-core large-mode-area photonic crystal fiber structure has been designed based on the principle of higher order mode filtering by introducing fluorine-doped material rods in the cladding region. The proposed structure has an effective-mode area of fundamental mode (FM) as large as 2147 mu m(2) at 1.064 mu m with nominal loss of 1.36 x 10(-2) dB/m and 9.34 dB/m at first higher order mode (FHOM), which confirms effective single-mode operation after similar to 2.14 m propagation length. The same structure offers effective-mode area of 5688 mu m(2) at lambda = 1.55 mu m with confinement loss of similar to 6.3 x 10(-2) dB/m for FM and similar to 20.23 dB/m for FHOM. The loss of FHOM is above 8 dB/m from lambda = 1 mu m to lambda = 1.6 mu m with very small loss in FM, which offers extended single-mode operation within a broad spectral range. (C) 2016 Optical Society of America
机译:基于高阶模滤波原理,通过在包层区域引入掺氟材料棒,设计了矩形芯大模态光子晶体光纤结构。所提出的结构的基本模式(FM)的有效模式面积在1.064μm时高达2147μm(2),标称损耗为1.36 x 10(-2)dB / m,在更高时为9.34 dB / m有序模式(FHOM),它在类似于2.14 m的传播长度后确认有效的单模式操作。相同的结构在λ= 1.55μm时可提供5688μm(2)的有效模式面积,对于FM而言,其限制损耗大约为6.3 x 10(-2)dB / m,而对于FHOM,则为20.23 dB / m。从lambda = 1μm到lambda = 1.6μm,FHOM的损耗高于8 dB / m,而FM损耗很小,这可在较宽的频谱范围内提供扩展的单模工作。 (C)2016美国眼镜学会

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