Generally speaking, there are two types of optical fibers for Mid-infrared laser transmission. One is solid-core optical fiber and the other is hollow waveguide.
目前研究传输红外激光光纤一般分为两类：红外实芯光纤和红外空芯波导。
It is proposed especially for the hollow-core optical fibers, considering the defect of the present measurement techniques.
这是在考虑到国内外现有的光纤几何参数测量方法的缺陷，针对空芯光纤的特殊问题而提出的。
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