arXiv:1807.03622 · Journal of the Optical Society of America A
Interferometry-based modal analysis with finite aperture effects
Davood Mardani, Ayman F. Abouraddy, George Atia
Abstract
We analyze the effects of aperture finiteness on interferograms recorded to unveil the modal content of optical beams in arbitrary bases using generalized interferometry. We develop a scheme for modal reconstruction from interferometric measurements that accounts for the ensuing clipping effects. Clipping-cognizant reconstruction is shown to yield significant performance gains over traditional schemes that overlook such effects that do arise in practice.