Fibre end inspection

Photonics and optical engineering

 

Optical Engineering & Instrumentation

The modern boom in the telecomms marketplace has presented new challenges to component manufacturers.  Novel materials, new processes and greater opto-mechanical integration have led to a range of manufacturing and ATE issues that had never been encountered before.  Diverse are uniquely placed to help manufacturers solve these difficult problems by providing specialist optical engineering support allied to instrumentation development experience. 

Stand alone laser diode inspection system

Laser Diode Inspection Systems (LDIs) test bare laser diode chips to full power in 900 nano seconds providing full characterisation for electronic and optical performance

PC based laser diode inspection system

Examples of our experience include both stand-alone and PC based laser diode inspection shown above.

Measures the critical cleave angle on a Lithium Niobate crystal to a fraction of a degree.

Another example is QA equipment for testing the cleave angle on integrated-optic crystals and ensuring that coupling fibres are correctly aligned to the assembly (see above). 

Automated alignment equipment was designed for positioning fibres in the correct location during the manufacture of pig-tailed lasers diodes. The system worked by bending the optic fibre ferrule to the point at which maximum light coupled to the loss was obtained. The ferrule was then taken beyond yield point so that, when released, the fibre returned to the point of maximum coupling.

  Our work on the efficiency of reflectivity coatings on monomode coated fibre ends required the development of equipment with a measurement accuracy of 0.01% and a positional resolution of ~1µm.  Diverse also hold patent applications relating to the alignment of multiple-fibre assemblies for the manufacture of integrated optical components. 

Tel. +44 (0) 1223 84 44 44