Development path and verification for HabWorlds deformable mirrors

Deformable Mirrors (DMs) are the critical component for the Habitable Worlds Observatory (HWO). A baseline set of device requirements was set for a short feasibility study by some key DM vendors. Included in these requirements are previously untestable tolerances for which a verification plan must be developed. The stability requirements, in particular, are held at unprecedented temporal frequencies. Picometer-level tolerances are levied for both long term drift as well as times scales greater than 10 Hz. This work presents a shift in thinking on how to augment the DM stability requirements via power spectrum specifications, and a concept testbed that is purpose built to directly verify this. Overall, we present the combined progress on our development of the DM verification plan for HWO DM system technologies, and dive into the testbed measurements intended to demonstrate the devices are fit for exo-Earth coronagraphy.