Demonstration of a waveguide regime for a silica hollow - core microstructured optical fiber with a negative curvature of the core boundary in the spectral region > 3.5 μm
Demonstration of a waveguide regime for a silica hollow - core microstructured optical fiber with a negative curvature of the core boundary in the spectral region > 3.5 μm
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DOI：
10.1364/oe.19.001441
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发表时间：
2011-01-17
期刊：
影响因子：
3.8
通讯作者：
Dianov, Evgeny M.
中科院分区：
文献类型：
--
作者：
Pryamikov, Andrey D.;Biriukov, Alexander S.;Dianov, Evgeny M.
我们对由芯边界负曲率的二氧化硅制成的空芯微结构光纤（HC MOFs）在宽带光谱范围内的波导状态进行了数值和实验演示。它示出的HC MOFs的包层仅由一行的二氧化硅毛细管允许引导光从近红外到中红外，尽管在这个光谱区域中的二氧化硅的高材料损耗。这种结果可以通过包层毛细管的特殊布置来获得，该布置导致芯边界曲率的符号的改变。纤芯边界曲率的符号的变化导致纤芯模式的边界条件的简单性的损失以及它们与空间中的包层材料的相互作用的“局部化”和限制。这种由不同材料制成的HC MOFs可以解决超高功率传输问题，包括CO和CO（2）激光辐射的传输。(c)2011年美国光学学会
We present a numerical and experimental demonstration of a waveguide regime in a broad band spectral range for the hollow core microstructured optical fibers (HC MOFs) made of silica with a negative curvature of the core boundary. It is shown that HC MOFs with the cladding consisting only of one row of silica capillaries allows to guide light from the near to mid infrared despite of high material losses of silica in this spectral region. Such result can be obtained by a special arrangement of cladding capillaries which leads to a change in the sign of the core boundary curvature. The change in the sign of the core boundary curvature leads to a loss of simplicity of boundary conditions for core modes and to "localization" and limitation of their interaction with the cladding material in space. Such HC MOFs made of different materials can be potential candidates for solving problem of ultra high power transmission including transmission of CO and CO(2) laser radiation. (c) 2011 Optical Society of America