Abstract
We describe the accurate measurement of the radius of curvature of a concave mirror in a Fabry–Perot interferometer with a finesse of 78,100. The radius of curvature of the concave mirror is determined by measuring the free spectral range and the transverse-mode range with the frequency response functions. The radii of curvature at two orthogonal (x and y) axes on the mirror surface resulting from the polishing nonisotropy were accurately measured to be r x = 1008.46 mm and r y = 1006.94 mm, respectively, with an accuracy of 8 × 10−5. This accuracy is the best to our knowledge. The power dependence of the radii of curvature to the cavity internal intensity at a steady state was measured to be dr x/dI c = +60 μm/(MW/cm2) at the x axis and dr y/dI c = +47 μm/(MW/cm/2) at the y axis to an intensity of 2.1 MW/cm2.
© 1995 Optical Society of America
Full Article | PDF ArticleMore Like This
Youichi Bitou, Osamu Sato, and Souichi Telada
Opt. Express 27(10) 13664-13674 (2019)
Lei S. Meng, Jason K. Brasseur, and David K. Neumann
Opt. Express 13(25) 10085-10091 (2005)
Maxim Spiridonov and David Toebaert
Appl. Opt. 45(26) 6805-6811 (2006)