The objective of this experiment is to demonstrate the interference pattern obtained from combining coherent monochromatic light beams using a Michelson interferometer setup. You will ultimately derive the wavelength of the light source from your measured interference pattern.
Abbott, B.P. et al., "LIGO: the Laser Interferometer Gravitational-Wave Observatory." Rep. Prog. Phys. 72 076901 (2009).
Michelson, A.A. and E.W. Morley, "On the Relative Motion of the Earth and the Luminiferous Ether (PDF)." American Journal of Science 34, 333 (1887).