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Core-clad silver halide fibers with few modes and a broad transmission in the mid-infrared

机译:包芯卤化银纤维,在中红外模式很少,传输范围广

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摘要

There is interest in single-mode fibers that are highly transparent in the mid-infrared. Such fibers would be valuable for spectroscopy, interferometry, and heterodyne detection. We have developed core-clad fibers made of crystalline silver halides with an external diameter of 900 (mu)m and core diameters as small as 60 (mu)m. These fibers exhibit homogeneous core and cladding regions, round cores, and smooth core-cladding interfaces. The 60 (mu)m fibers support roughly 70 modes and have low losses over a broad spectral range in the mid-infrared. This will pave the road for the development of single-mode mid-infrared fibers.
机译:人们对在中红外高度透明的单模光纤感兴趣。这样的纤维对于光谱学,干涉测量和外差检测将是有价值的。我们已经开发了由结晶卤化银制成的包芯纤维,其外径为900μm,纤芯直径小至60μm。这些纤维表现出均匀的纤芯和包层区域,圆形纤芯和光滑的纤芯-包层界面。 60微米的光纤支持大约70种模式,并且在中红外的宽光谱范围内具有低损耗。这将为单模中红外光纤的发展铺平道路。

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