Measurement of fiber-cladding diameter uniformity by use of whispering-gallery modes: nanometer resolution in diameter variations along millimeter to centimeter lengths

Andrew W. Poon; Richard K. Chang; Dipak Q. Chowdhury

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Measurement of fiber-cladding diameter uniformity by use of whispering-gallery modes: nanometer resolution in diameter variations along millimeter to centimeter lengths

机译：使用回音壁模式测量光纤包层直径的均匀性：沿毫米到厘米长度的直径变化的纳米分辨率

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Variations in fiber-cladding diameter on a nanometer scale were measured along millimeter to centimeter lengths by use of whispering-gallery modes (WGMs) in the elastic scattering of the fiber. The fiber was side coupled with a wavelength-tunable Gaussian beam. The scattered light was imaged ≈1:1 onto a multichannel photodiode array detector. Based on the WGM wavelength shifts along the fiber, the taper of the fiber cladding's diameter was measured on a nanometer/millimeter scale. The fiber's surface roughness amplitude (in nanometers) and granular size (≈100 μm) along centimeter-length fibers could also be revealed by use of higher-Q resonances.

机译：通过在纤维的弹性散射中使用回音壁模式（WGM），沿着毫米至厘米的长度测量了纳米级纤维包层直径的变化。光纤的侧面与波长可调的高斯光束耦合。散射的光约1：1成像到多通道光电二极管阵列检测器上。根据WGM波长沿光纤的位移，以纳米/毫米为单位测量光纤包层直径的锥度。纤维的表面粗糙度振幅（以纳米为单位）和沿厘米长度的纤维的粒度（≈100μm）也可以通过使用较高Q共振来揭示。

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《Optics Letters》 |2001年第23期|共3页
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Andrew W. Poon; Richard K. Chang; Dipak Q. Chowdhury;
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1. Measurement of fiber-cladding diameter uniformity by use of whispering-gallery modes: nanometer resolution in diameter variations along millimeter to centimeter lengths [J] . Andrew W. Poon, Richard K. Chang, Dipak Q. Chowdhury Optics Letters . 2001,第23期

机译：使用回音壁模式测量光纤包层直径的均匀性：沿毫米到厘米长度的直径变化的纳米分辨率
2. High-resolution measurement of the fiber diameter variations using whispering gallery modes and no optical alignment [J] . Birks T.A., Knight J.C. IEEE Photonics Technology Letters . 2000,第2期

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Measurement of fiber-cladding diameter uniformity by use of whispering-gallery modes: nanometer resolution in diameter variations along millimeter to centimeter lengths

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