Hi, I have been assigned to a new task in my job where I have to investigate on measuring the distance to an object by means of optical interferometry (Michelson interferometry). I have been looking for info on the subject but have not been really lucky. I have been able to obtain the confocal signal (mostly Gaussian curve) in the photodiode and with that I might be able to get the distance to the object, but what my bosses really want is to use the interferometric signal to get that distance instead of the confocal. The problem is that I don't understand where does that signal come from, since it has a higher frequency and is mostly noise, so I don't know how am I going to process it to obtain any interesting data from it. Could somebody explain how should I process this signal or at least provide a link to useful info since I am running out of ideas Thanks in advance!