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Harold White is using several methods of experimentation (including Twyman-Green and Fabry-Perot interferometry) to measure spacetime warping in a similar geometry to the Alcubierre solution. However, many objections have been raised against the instrumentation and results, including interference from a change in the refractive air index (Lee & Cleaver, 2014). The authors of this paper were not able to obtain White's calculations that would allow examination of his predicted warping - and resulting phase shift using laser interferometry - that White is attempting to measure. Given the lack of evidence to support positive results, there's reason to attempt replication of White's experiments and methods.  Because gravity is a property of spacetime geometry, a foundation for Alcubierre experimentation can be built on existing lines of research in gravitational instrumentation. The COW experiment demonstrated remarkable pioneering in neutron interferometry and gravitational measurement (Colella, Overhauser, and Werner, 1974). Since the 1960s, continued improvements have been made to Weber's original 1966 proposal for a resonant-mass detector to measure gravitational waves (Aguiar, 2014). It's important to make the distinction that White's experiment is attempting to directly measure spacetime distortion, distortion on a laser's path,  whereas other laser interferometers such as LIGO are designed to detect residual gravitational phenomenon, or gravitational  waves. However, the method of detection is moot irrelevant  since the a  positive resultonly  requires verification of the Alcubierre geometry and not necessarily replication of White's experimental design.