Variable Free Spectral Range Spherical Mirror Fabry-Perot Interferometer

Abstract

A spherical Fabry-Perot interferometer with adjustable mirror spacing is used to produce interference fringes with frequency separation (c/2L)/N, N=2-15. The conditions for observation of these fringes are derived from the consideration of the eigenmodes of the cavity with high transverse indices.

11 pages, 7 figures, accepted to Siberian Journal of Physics