We present a method of analysis involving ellipse-specific fitting of sinusoidally coupled data from two gravimeters in a gradiometer configuration. This method permits rapid extraction of induced gradient phase shifts in the presence of common-mode vibrational phase noise. Gravity gradients can be accurately measured in the presence of large vibrational accelerations.
© 2002 Optical Society of America
G. T. Foster, J. B. Fixler, J. M. McGuirk, and M. A. Kasevich, "Method of phase extraction between coupled atom interferometers using ellipse-specific fitting," Opt. Lett. 27, 951-953 (2002)