Refractive index profiler slashes measurement times to seconds

Comprising a novel measurement technique, the new refractive index profiler developed by Arden Photonics produces complete 2D refractive index profiles of optical fibres in only a few seconds. This makes the nPA-400 ideal for use on production lines, research and development labs, and quality assurance environments.

By providing accurate and repeatable refractive index data, the profiler makes it simple to quickly verify standard and speciality fibre designs by producing valuable information on fibre design and manufacturing processes.

The nPA-400 uses a modified refracted nearfield technique to analyse the end-view greyscale intensity profile of a fibre to determine its full 2D refractive index distribution. A speedy measurement time is made possible by eradicating the necessity to rotate the fibre or scan the fibre end face.

Fibre preparation is also easy, allowing users to fully characterise fibres with little training or experience. The profiler can measure all types of standard and speciality fibres, including polarisation maintaining (PM), octagonal and multi-core, across a full range of diameters from 40µm to 400µm.