Abstract

A theory of broad source fringe formation in which the broad source fringe formation process is associated with distortion of the source image, is applied to an interferometer formed from diffraction gratings in tandem. It is shown that the source distortion is exactly that required to produce equally spaced fringes for all source elements. The possibility for applying this theory to the design of more complex interferometric systems that operate in extended source illumination is considered.

© 1987 Optical Society of America

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