I was on a CE call that referenced some interesting tools for interferometer modelling that may be useful for us after this paper is out. Sticking it on here just so everyone has it.

• gtrace, a beam propagation tool - haven't seen this, thought you should be aware if you haven't.
• example tutorial - may be interesting to create some of these outputs for gquest
• interactive python widget for a finesse build of one of the CE designs - this would be cool to build for gquest as well