## Fabry-Perot cavity stability for a fixed waist at the input

This simple example shows how one can use Finesse to compute quantities like the stability of a Fabry-Perot cavity whilst scanning over the cavity length but keeping the waist size fixed at the input mirror. The image below shows the set-up used here. For a waist-size of 8 mm and beam wavelength of 1550 nm, […]