Title :
Intensity profile distortion due to resolution limitation in fibre index profile determination by near field
Author_Institution :
Laboratoires d´Electronique et de Physique Appliquée, Limeil-Brévannes, France
Abstract :
Calculations were performed to assess the influence of reduced resolution, due to the limited local numerical aperture of a fibre, on the intensity profile determined by the near-field method. It was found that this effect could lead to small but significant errors in the determination of the actual profile, especially at large relative radii.
Keywords :
optical fibres; optical waveguide theory; fibre index profile determination; intensity profile; near field; resolution limitation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780106
