HIGHLY ACCURATE AND SIMPLE TECHNIQUE FOR MATERIAL DISPERSION MEASUREMENTS IN OPTICAL FIBERS.

被引：0
|
作者：
Costa, Bruno
Mazzoni, Daniele
Puleo, Mario
Vezzoni, Emilio
机构：
来源：
CSELT Rapporti Tecnici (Centro Studi e Laboratori Telecomunicazioni) | 1981年 / 9卷 / 05期
关键词：
OPTICAL VARIABLES MEASUREMENT;
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摘要：
A new method is described for the measurement of material dispersion in optical fibers. It consists in using LED sources, which emit a relatively large spectrum of 100-200 nm width, and selecting the various wavelength by means of a monochromator; the differences in time delay between the various wavelengths are measured in a very accurate way by sinusoidally modulating the LED at a fixed frequency and measuring the phase difference. The wavelength range 0. 75-1. 35 nm has been covered with 4 LED's, and a precise determination of the wavelength of zero material dispersion has been obtained.
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页码：453 / 456
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