Title :
Characterisation of graded single-mode fibres by fundamental-mode spot size variation
Author_Institution :
Technical University of Denmark, Electromagnetics Institute, Lyngby, Denmark
Abstract :
In the letter the accuracy of ESI parameters extracted from spectral spot size behaviour is examined. Different spot size definitions are considered and it is found that the equivalent cutoff wavelength, even for profiles far from a step, agrees reasonably with the mathematically defined cutoff wavelength.
Keywords :
optical fibres; optical waveguide theory; equivalent cutoff wavelength; equivalent step index; fundamental-mode spot size variation; graded single-mode fibres; mathematically defined cutoff wavelength; optical fibres; optical waveguide theory; spectral spot size behaviour; spot size definitions;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840376
