nPA-400 Refractive Index Profiler

Measure refractive index in seconds!

The nPA-400 is the quick, easy and low-cost way to get the refractive index data you need to verify your standard and specialty fibers.

Minimum fiber preparation is required, and the clean, efficient graphical user interface allows the user to fully characterise their fibers, with minimal training or experience. The nPA-400 provides accurate and repeatable refractive index data, giving valuable information about fiber design and the manufacturing process.

The nPA-400 Refractive Index Profiler uses a modified refracted nearfield technique to analyse the end-view grey-scale intensity profile of a fiber to determine its full 2D refractive index distribution.

There is no need to rotate the fiber or scan the fiber endface, resulting in a very fast measurement, meaning that the nPA-400 is suitable for production lines, research and development labs, or QA environments.

Features and Benefits

  • Measurement in seconds
  • Very quick and easy fiber preparation – just cleave and insert the fiber
  • Highly user-friendly software
  • Measures fibers up to 400 µm in diameter
  • Measures non-circularly symmetrical fibers – good for PM; octagonal, multicore
  • Traceable calibration

nPA-400 Refractive Index Profiler

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