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A novel method for measuring the distributed zero dispersion wavelength λ0 along a fibre's length is proposed that uses the dispersion dependent amplification induced by modulation instability. The λ0 distribution of a 10 km fibre is successfully measured without cutting the fibre into short pieces. The measured distribution is compared with the average values of each span as measured with the conventional method.
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Nishi et al. (1995) studied this question.
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