Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Accurate Gouy phase measurement in an astigmatic optical cavity

Published

Author(s)

John R. Lawall, Mathieu Durand, Yicheng Wang

Abstract

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}.
Citation
Applied Physics B-Lasers and Optics

Keywords

Gouy phase, Fabry-Perot, interferometry
Created September 14, 2012, Updated November 10, 2018