Measurement services  – Encircled Flux

Using an optical fiber light source with the correct modal launch conditions is essential for the accurate measurement of loss and bandwidth in multimode cable systems and components. Arden’s Modal Explorer is the industry’s leading, fully standards compliant measurement tool of choice for measuring modal launch conditions in laboratories and factories around the world.

Now you can have the benefit of knowing the Encircled Flux of your source without owning a Modal Explorer by taking advantage of our extensive in-house measurement capability, the same one we use to make “ModCons”.


The process is simple. You send us your light source, and we provide a detailed report of the Encircled Flux at 850nm, 1300nm or other wavelength by special request. We ship your source and test report back within 5 days of receipt.

Measurement services  – Other

We are able to offer expert advice on most aspects of optical fiber measurement. We have many years experience in the design of optical fiber test equipment, fiber measurement and calibration. Measurements covered include:


  • Refractive index profiling
  • Chromatic dispersion
  • Mode field diameter
  • Cut-off wavelength
  • Return loss
  • Polarisation mode dispersion
  • Component measurements

Software design and system integration

Arden can undertake or manage software projects using LabVIEW to agreed specifications and timescales such as custom measurement or instrumentation setups.

We have delivered jobs ranging from replacing obsolete data logging software through to custom software packages which involve integrating several pieces of hardware such as cameras, power meters, and light sources.

On the right is a typical interface for a hardware integration project. This “Engineering” interface provided a comprehensive toolkit for analysing complex waveforms and images, with password protected areas. We also provided a simple Go/No-Go type interface for the use of production operators.

Optical design


Our optical design expertise can complement your in-house resources and be as integrated into your project team as you like. We can use “Zemax”, and mechanical design packages, and have full capability to produce one-off systems or to prototype new products.

Recent projects include building a custom laser beam imaging system for assessing eye hazard;  modelling an LED lighting cluster in “Zemax”, and testing a prototype to ensure it met regulations; designing and prototyping a zoom capability for an interferometer.

Technical Support

Our aim is to make certain that you get the kind of support you need to ensure your investment keeps repaying you, year after year. Whether your Arden product is in the laboratory and needs to be at the leading edge of technical developments or in a production environment where down-time is critical, we believe we have support which can be tailored to suit you.


Our Product Range