Roberts A, Ampem-Lassen E, Barty A, Nugent K A, Baxter G W, Dragomir N M, Huntington S T
Opt Lett. 2002 Dec 2;27(23):2061-3. doi: 10.1364/ol.27.002061.
The application of quantitative phase microscopy to refractive-index profiling of optical fibers is demonstrated. Phase images of axially symmetric optical fibers immersed in index-matching fluid are obtained, and the inverse Abel transform is used to obtain the radial refractive-index profile. This technique is straightforward, nondestructive, repeatable, and accurate. Excellent agreement, to within approximately 0.0005, between this method and the index profile obtained with a commercial profiler is obtained.
本文展示了定量相显微镜在光纤折射率分布测量中的应用。获取了浸没在折射率匹配液中的轴对称光纤的相位图像，并使用逆阿贝尔变换获得径向折射率分布。该技术简单、无损、可重复且准确。该方法与使用商业轮廓仪获得的折射率分布之间的一致性极佳，误差在约0.0005以内。
