Nerd Rage

The mer­its of homo­dyne ver­sus het­ero­dyne detec­tion is some­what of a crossover topic since it applies to both opti­cal com­mu­ni­ca­tion and inter­fer­om­e­try. In this post we will start by deriv­ing the detected sig­nals for homo­dyne, het­ero­dyne and intra­dyne detec­tion.