Abstract

A wave-front-folded interferometer composed of a Kösters prism and an image-forming lens provides a good way of measuring the complex degree of spectral coherence. Demonstrative experiments are implemented by incorporation of uncorrelated two-point spectral sources in the primary-source plane; these sources establish a spatially partially coherent wave field over the secondary source plane just in front of the interferometer. The complex degree of spectral coherence of the secondary source is successfully measured after an a priori calibration is made for the interferometer that was constructed.

© 1997 Optical Society of America

Complex degree of spectral coherence and spectral changes measured by two-beam interference experiments in the space-frequency domain

Hidenobu Arimoto and Yoshihiro Ohtsuka
J. Opt. Soc. Am. A 15(4) 914-923 (1998)

Determination of the angular separation and the spectra of two-point sources from spectral coherence measurements

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