Title :
Simple technique to estimate spot sizes from far fields of single-mode fibres
Author :
Priye, Vishnu ; Pal, Bishnu P.
Author_Institution :
Indian Inst. of Technol., New Delhi
fDate :
10/27/1988 12:00:00 AM
Abstract :
Accurate estimates of two characteristic spot sizes, W rms and Wp, based on measurements of far-field angles θ-3 dB and θ-40 dB made on two single-mode fibres of widely differing refractive index profiles (RIPs) are reported. The results including their near-field profiles are compared with those deduced from the measured RIPs of the fibres, and are found to be in good agreement and well within the measurement accuracy
Keywords :
optical fibres; optical testing; optical variables measurement; refractive index; characteristic spot sizes; far fields; near-field profiles; optical fibre testing; refractive index profiles; single-mode fibres; spot size estimation;
Journal_Title :
Electronics Letters
