Some sources of error with multiphase homodyne interferometry are reviewed. A major advantage over the classic two-channel approach is that the inaccuracies that originate from laser-power fluctuations and drifts are shown to be automatically compensated for by proper adjustment of the light beams.
© 1995 Optical Society of America
V. Greco, C. Iemmi, S. Ledesma, G. Molesini, and F. Quercioli, "Multiphase homodyne interferometry: analysis of some error sources," Appl. Opt. 34, 2207-2213 (1995)