|Publication No: 1493||Search all ORC publications|
Comparison of the decay behaviour of negative and positive index chance fibre Bragg gratings
W.F.Liu, L.Dong, L.Reekie, D.N.Payne
We have studied the thermal stability of both negative and positive index gratings produced by a 193nm excimer laser. A complex decay process has been observed in gratings consisting of both types of index change. This phenomenon can be explained by our recently proposed three energy level model.
Colloquium on Optical Fibre Gratings London 07-Feb (1997)
Copyright University of Southampton 2006