Refractive-index profiling of optical fibers with axial symmetry by use of quantitative phase microscopy Academic Article uri icon


  • 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.


  • Roberts, A
  • Ampem-Lassen, E
  • Barty, A
  • Nugent, KA
  • Baxter, GW
  • Dragomir, NM
  • Huntington, ST

publication date

  • December 2, 2002

has subject area