Temperature and strain characterization of regenerated gratings

TL;DR

This paper investigates how temperature and strain affect seed and regenerated gratings, revealing that high-temperature regeneration impacts thermal and mechanical properties, while post-annealing has minimal effect, indicating viscoelastic changes in glass.

Contribution

It provides new insights into the effects of high-temperature regeneration and post-annealing on the properties of optical gratings.

Findings

High-temperature regeneration significantly affects thermal and mechanical properties.

Post-annealing has little impact on the gratings.

Viscoelastic changes in glass structure are evidenced by observed differences.

Abstract

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.