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Measurement of normalised frequency in a single-mode optical fibres
W.A.Gambling, D.N.Payne, H.Matsumura and S.R.Norman
It is shown that methods of measuring the normalised frequency in single-mode fibres through observation of mode cut-off wavelengths give erroneous results. This is because the various loss mechanisms which exist in a practical fibre can have an appreciable effect near cut-off.
Electronics Letters (1977) Vol.13(5) pp.133-135
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