Title :
Enhancement of birefringence in polarisation-maintaining fibres by thermal annealing
Author :
Ourmazd, A. ; Birch, R.D. ; Varnham, M.P. ; Payne, David N. ; Tarbox, E.J.
Author_Institution :
University of Southampton, Department of Electronics, Southampton, UK
Abstract :
The thermal behaviour of highly birefringent polarisation-maintaining optical fibres is studied, and the thermal hysteresis of the birefringence is related to the quenching of the fibre. Suitable `on-line¿ thermal annealing during fibre drawing is shown to be a method for the full development of the high anisotropic stresses potentially available in high birefringence structures using borosilicate stress-producing parts.
Keywords :
annealing; birefringence; borosilicate glasses; drawing (mechanical); light polarisation; optical fibres; anisotropic stresses; birefringent polarisation-maintaining optical fibres; borosilicate stress-producing parts; fibre drawing; quenching; thermal annealing; thermal behaviour; thermal hysteresis;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830101
