class finesse.parameter.GeometricParameter(parameter_info, component)

Bases: Parameter

Specialised parameter class for variables which are dependencies of ABCD matrices. These include surface radii of curvature, lens focal lengths, beamsplitter angles of incidence, space lengths and space refractive indices.

When setting the value of a GeometricParameter outside of a simulation, the dependent ABCD matrices get updated via the update_abcd_matrices C method. Inside a simulation, the ABCD matrix elements are updated in a much more efficient way via the connector workspaces.