Phase-space inequality for partially coherent optical beams

OPTICS COMMUNICATIONS

卷:187

Article

Visser, TD ; Friberg, AT ; Wolf, E

关键词: optical beams;    coherence theory;    beam quality;   

DOI  :  10.1016/S0030-4018(00)00983-4

来源: Elsevier

【 摘 要 】

A phase-space inequality is derived for beams of arbitrary state of spatial coherence. It applies to the product of a factor which expresses the effective coherence area of the source that generates the beam and the effective angular spread of the beam; and, by analogy with coherent beams, it may be regarded as a measure of the beam quality. It is found that the factor attains a minimum for the entire class of Gaussian Schell-model beams (which include the Hermite Gaussian laser mode). (C) 2001 Elsevier Science B.V. All rights reserved.

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