University of Edinburgh & NASA | Alker Fibre Optic Specialists

University of Edinburgh & NASA

Alker is also able to provide bespoke inspection and cleaning tips for your equipment and your assets.


Collaboration project between renowned University of Edinburgh and the National Aeronautics and Space Administration (NASA). Nasa is the US government agency responsible for science and technology related to air and space.


Need of a system capable of measuring up-welling (reference standard to estimate solar irradiance) and down-welling (the target

Earth surface) simultaneously and in two different spectral regions using two different spectrometers: one for the spectral region where the induced chlorophyll fluorescence estimation is possible and one across the wider near-infrared region.


We manufactured a double bifurcated fibre optic assembly routing light from two different sources to two different spectrometers configured for different wavelength ranges (UV/VIS and VIS/NIR).


  • 2×2 assembly;
  • Both aligned: connectors with keyway polarisation, and unaligned fibre legs;
  • SMA905 custom connectors specially design to sit both fibres, keyed for alignment;
  • 400um and 600um core fibre;
  • Armoured; Water-resistant;
  • IP68 gland;
  • 4 Ribbon cable in one input leg that splits in 2 ribbon cable in each output leg;
  • Lightweight design for use on in unmanned aircraft (UAV), less than 80g per assembly.

Connecting the future world…..

At Alker we have more than 35 years’ experience in the fibre optic industry, our engineers are able to break down existing connectors to determine the most appropriate course of action to carry out a repair, redesign or have new parts manufactured to extend the life of your system.

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