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Accurate Gouy phase measurement in an astigmatic optical cavity



John R. Lawall, Mathieu Durand, Yicheng Wang


We present measurements of the Gouy phase accumulation for the fundamental mode of an astigmatic Fabry-Perot cavity over 70 % of its stability range. The method is based on simultaneous measurement of the resonant frequencies of the fundamental mode and the TEM11 Hermite-Gauss mode of the cavity. We achieve an uncertainty of 2.7 x 10^{-6} rad, which is sufficient to enable is placement measurements over 50~mm with relative uncertainty below 10^{-10}.
Applied Physics B-Lasers and Optics


Gouy phase, Fabry-Perot, interferometry


Lawall, J. , Durand, M. and Wang, Y. (2012), Accurate Gouy phase measurement in an astigmatic optical cavity, Applied Physics B-Lasers and Optics, [online], (Accessed April 25, 2024)
Created September 14, 2012, Updated November 10, 2018