Abstract
Chromatic dispersion in optical fibers is a result of material and waveguide effects. In graded-index fibers there could be a contribution from nonlinear dispersive properties of the core material, although it has been claimed that such an effect is negligible.1 All these factors affect each mode in a different way. Therefore, determination of the wavelength of zero material dispersion (ZMD) is dependent on the propagating mode volume with practical impact on system design. Measurement of chromatic dispersion properties of different modes can in principle give some information about these problems. In this paper we show results of chromatic dispersion measurements performed by selectively exciting different groups of mode.
© 1982 Optical Society of America
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