The temporal coherence properties of a dispersively propagating optical beam are clarified experimentally by means of a two-beam interferometer composed of optical fibers with 1.3- and 1.5-μm zero-chromatic-dispersion wavelengths. Experimental results fully explain and reflect theoretically predicted ones concerning both the magnitude of the degree of coherence and the shape of the coherence curve with respect to the optical path difference.
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Shibata et al. (1987) studied this question.
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