Title :
Formula giving single-mode limit of optical fibre having arbitrary refractive-index profile
Author :
Hotate, Kazuo ; Okoshi, Tadashi
Author_Institution :
University of Tokyo, Department of Electronic Engineering, Tokyo, Japan
Abstract :
A relatively simple formula for calculating approximately the single-mode limit (cutoff frequency of LP11 mode) of an optical fibre having an arbitrary refractive-index profile is derived. The normalised cutoff frequencies are computed by using the derived formula for various profiles and are compared with rigorous values, showing fairly good agreement.
Keywords :
optical fibres; optical waveguide theory; LP11 mode; arbitrary refractive index profile; normalised cutoff frequencies; optical waveguide theory; single mode limit; single mode optical fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780167
