C++ rewrite of my FDTD-based optics simulator. This one is a 620nm (red) source fired into one of two parallel single-mode waveguides.

I lika da pretty pictures.

I’m still trying to find time to migrate content from a VM of my old web server. In the mean time, I found an archived version of the page at the Internet Archive Wayback Machine.

I’ve made a few updates, and posted it at the old (apparently oft-cited) link. Enjoy, and email me if you have questions or comments.