Title :
Precise beat length measurement of birefringent fibres with dual channel low-coherence reflectometer
Author :
Davé, D.P. ; Milner, T.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
fDate :
2/15/2001 12:00:00 AM
Abstract :
A highly sensitive interferometric method to measure beat length of fibres with high or low birefringence is described. The method does not require any mechanical perturbation to the fibre and can accurately measure temporal group delay between polarisation modes of a 0.5 m fibre with a birefringence as low as Δn=3.64×10-8 or a beat length of 36
Keywords :
birefringence; light interferometry; optical fibre polarisation; optical fibre testing; reflectometers; 0.5 m; birefringent fibres; dual channel low-coherence reflectometer; interferometric method; polarisation modes; precise beat length measurement; temporal group delay;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010162
