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Optics Communications,
vol. 143, pp. 189–192, 1997
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Experimental Demonstration of Intermodal
Dispersion in a Two-Core Optical Fibre
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K.S. Chiang, Y.T. Chow,
D.J. Richardson, D. Taverner,
L. Dong, L. Reekie,
K.M. Lo
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Abstract:
The recent prediction that intermodal dispersion could affect
the propagation of short pulses in a two-core optical fiber was
confirmed experimentally. A picosecond pulse at
1.548 mm
launched into one core of a meters-long two-core fibre was found
to come out of either core of the fibre as two temporally
separate pulses.
By measuring the time delay between these two pulses,
the intermodal dispersion in the fibre was estimated to be
1.13 ps/m, in good agreement with theory.