Articles by others on the same topic (1)

Michelson-Morley experiment by Ciro Santilli 34 Updated Created
Video 1.
Michelson Interferometer by Amrita Vlab (2013)
Source. Shows the optical controls and alignment in more detail.
Video 2.
Michelson Interferometer by TSG Physics (2012)
Source. TSG PHysiQuantum electrodynamics bibliographycs is the channel from the MIT Department of Physics Technical Services Group. In the video they produce a very clear round interference pattern.