, Volume 107, Issue 2, pp 282-287
Date: 04 Sep 2009

Longitudinal coherence length of an optical field

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Abstract

Longitudinal coherence of an optical field depending on the parameters of its frequency and angular spectra is considered. Expressions for the function and length of longitudinal coherence depending on the width of the frequency and angular spectra are obtained. The competitive influence of the angular and frequency spectra of the field on its longitudinal coherence is discussed. Experimental studies using a longitudinal shearing Michelson interferometer that proves theoretical results are performed.

Original Russian Text © V.P. Ryabukho, D.V. Lyakin, V.V. Lychagov, 2009, published in Optika i Spektroskopiya, 2009, Vol. 107, No. 2, pp. 300–305.