Calculate light field amplitudes and detector outputs in a quasi-static, user-specified interferometer configuration.

Model light fields as Gaussian beams, including paraxial spatial deformations such as misalignment and surface roughness, perturbatively using higher order modes.

Simulate open- and closed-loop feedback systems including optical, mechanical and electrical elements.

General users should refer to documentation for the latest stable release. Developers may prefer to view that of the develop version.

Share your examples and questions in our Logbooks, and chat with Finesse developers and other users by joining our chat channel on Matrix.

You can try Finesse in a pre-installed environment using our mybinder.org Jupyter notebooks before you install it on your own computer (note that you cannot save your work).

Explore our introduction to Finesse, learn the history of the software, or read about its impact and how you can cite Finesse in your own work.

Finesse is an open source project distributed under a GPL 3.0 license. The code is developed by a small community and maintained publicly on GitLab.