I run OptiFTDT package which installed OptiFTDT Designer and OptiFTDT Analyzer. Is there any other module is also required to simulate and design a optical waveguide.
Thanks
OptiFDTD should cover most of your needs for simulating the waveguide. If you want to do in depth mode solving then OptiMODE would also be of help. You can find it in the same installation directory as OptiFDTD.