用方位滤波技术精确测量微结构optical fiber的截止波长
Accurate measurement of the cutoff wavelength in a microstructured optical fiber by means of an azimutal filtering technique
摘要：
提出了一种测量微结构光纤（MOFs）截止波长的简单自参考非破坏性方法。它是基于时间依赖的光功率传输通过一个蝴蝶结狭缝旋转在远场模式的光纤测试的分析。作为第一个演示，测量的截止波长的2m的MOF样品的精度为10nm，与理论预测很好地一致。
英文摘要：
A simple self-referenced non destructive method is proposed for measuring the cutoff wavelength of microstructured optical fibers (MOFs). It is based on the analysis of the time dependent optical power transmitted through a bow-tie slit rotating in the far-field pattern of the fiber under test. As a first demonstration, the cutoff wavelength of a 2m MOF sample is measured with a precision of 10nm, in good agreement with theoretical predictions.
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