Title :
Measurement of normalised frequency in single-mode optical fibres
Author :
Gambling, W.A. ; Payne, David N. ; Matsumura, Hiroshi ; Norman, Suresh R.
Author_Institution :
University of Southampton, Department of Electronics, Southampton, UK
Abstract :
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 eflfect near cut-off.
Keywords :
optical fibres; mode cut off wavelengths; normalised frequency; single mode optical fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19770094
