Title :
Technique for reducing spatial and wavelength variations of launch spot in fibre attenuation measurements
Author :
Sharma, Abhishek B. ; L¿¿hteenoja, M. ; Halme, S.J. ; Hubach, E.J.R.
Author_Institution :
Helsinki University of Technology, Electrical Engineering Department, Communications Laboratory, Espoo, Finland
Abstract :
A launching technique based on the use of a large step-index rod with a ground end face is described. Experimental results indicate a significant reduction in spatial and wavelength variations. Based on theoretical considerations, the resultant attenuation error in interlaboratory experiments is estimated to be about ± 0.03 dB.
Keywords :
attenuation measurement; optical fibres; fibre attenuation measurements; launch spot; optical fibre; spatial variations; wavelength variations;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820168
