Propagation Characteristics of Double-Mode Fibers
- 8 July 1980
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Bell System Technical Journal
- Vol. 59 (6) , 1061-1072
- https://doi.org/10.1002/j.1538-7305.1980.tb03045.x
Abstract
We study propagation characteristics of double-mode fibers by measuring group delay differences of time-resolved discrete pulses of the LP(01) and LP(11) modes as a function of wavelength in the 1.06- to 1.6-μm region. The technique has been used to make the first measurements of zero intermodal dispersion in the zero material dispersion region of graded-index double-mode fiberguides that can have larger diameters than standard single-mode fibers. The results can also be used to deduce information about the fiber's refractive-index profile, such as δ, the normalized peak refractive index difference.Keywords
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