中文摘要：

结合计算机断层成像方法，提出了一种新的相位恢复显微测量实验技术．应用该技术测量了多孔光纤的三维折射率分布．这种技术是基于强度传递方程的理论，对相位的测量是直接的，测量对光纤无损害，这是一种测量多孔光纤的三维折射率分布的有效方法．

英文摘要：

A method to determine three-dimensional refractive index profile of holey fiber using a combination of quantitative phase microscopy and tomographic reconstruction techniques is described. Results show that the method based on the transport-of intensity equation for phase retrieval is straightforward to measure phase profile, nondestructive to the measured fiber, and valuable to determine three-dimensional refractive index profile of holey fiber.