It has been shown that the optical axes of the two guides are oblique relative to the plane of symmetry of the coupler, due to the interaction of the stresses in each guide, introduced by ion exchange. Thus the guide axes should be realigned to enable the couplers to maintain polarisation.
Origin
Corning Europe, Lemo-Enserg
Journal Title
11Emes Journees Nationales D'Optique Guidee, Grenoble, 17-19 Oct 1990
Sector
Special Glass
Class
S 516