New posts in Interferometry

How are the 4 km arms of LIGO measured so accurately?

Isn't LIGO basically measuring the luminiferous aether?

How can laser interferometry be used to measure path difference smaller than wavelength of laser light?

Do stars produce spatially coherent light? Why?

LIGO flawed by the identical expansion of laser wavelength and arms in presence of a gravitational wave?

Simplest interferometer