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Appl Opt. 1983 Apr 1;22(7):995-9.

Bandwidth estimation for multimode optical fibers using the frequency correlation function of speckle patterns.

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  • 1Stanford University, Department of Electrical Engineering, Stanford, California 94305, USA.

Abstract

In this paper we present a new method for estimating the bandwidth of multimode optical fibers based on the frequency correlation function of the speckle patterns generated by the interference of fiber modes. This technique, which does not require a pulse or signal generator, can be utilized to estimate the bandwidth of a multimode fiber using a relatively short length of fiber. By applying this method to a test fiber we obtained a bandwidth of approximately 36 MHz km which is in relatively good agreement with the approximately 44-MHz x km bandwidth measured by a conventional pulsed technique.

PMID:
18195912
[PubMed]
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