Angular stability of a Fabry–Pérot cavity

[Malamala]

Hello! I am designing a two-mirror cavity for an experiment. For the properties I need, I ended up using a 9.8 cm long cavity, with the 2 mirrors both having a 5 cm radius of curvature. Using Gaussian beam propagation formulas, I can easily compute most of the parameters I need (e.g., behavior with variation in length). However, I am not sure how to account for angular misalignments of the mirrors with respect to the axis connecting their centers. Is there a way to do this analytically (even approximately)? Even an order of magnitude estimate would be good. Thank you!

 

[Charles Link]

See https://opg.optica.org/josa/abstract.cfm?uri=josa-52-4-452
Just a suggestion, but something that may be useful for you=to try employing corner cubes=see the "link".