Nerd Rage

This post con­tin­ues the intro­duc­tion to opti­cal OFDM that I started here. In this post, we’ll dis­cuss what an OFDM sym­bol looks like and show, start­ing from the orthog­o­nal­ity con­di­tion, that the dis­crete Fourier trans­form can be used to demul­ti­plex an OFDM chan­nel into its sub­chan­nels. Using the Fourier trans­form, we also take a look …

And now for some­thing com­pletely dif­fer­ent… This will be the first of (hope­fully) a series of posts that will be an intro­duc­tion to opti­cal OFDM (or what I have learned in the past half year or so about it). Opti­cal OFDM has been some­what of a hot topic in recent years in the com­mu­nity, but …