Temperature and strain characterization of regenerated gratings
  Both temperature and strain characterization of seed and regenerated gratings with and without post-annealing is reported. The high temperature regeneration has significant impact to thermal characterization and mechanical strength of gratings whilst the post annealing has little effect. The observed difference is evidence of viscoelastic changes in glass structure. 
Tao Wan, Li-Yang Shao, John Canning, Kevin Cook
cond-mat.mtrl-sci