This project aims to produce a graphical user interface (GUI) for MATLAB programs written by
J.S.Marsland as part of his research into the excess noise factor in avalanche photodiodes (APDs). The
GUI will be produced using the GUIDE package supplied with the MATLAB software combined with
the MATLAB programs. The GUI will then be used to compare this research work with the research
work of others e.g. the Monte Carlo calculations made by the research group at the French
Aerospace Laboratory (ONERA). Comparison with other research work will require the digitization of
some graphs published in academic journals.