There's already a fiber for fiber questions, but I think we need another tag for optical networking (ROADM/DWDM/etc). I suppose it could just be optical-networking but that's doesn't really roll off the tongue. Suggestions?
I would suggest just using "optical". The -networking suffix seems redundant. I think that's clear enough in the context of the site. It should probably be combined with "dwdm" or other tag as appropriate for the specific technology involved.