Fiber Bragg gratings with ultra-high temperature-stability

Isochronal measurements showed that Bragg gratings written in tin-silicate fibers have far better temperature stability than those written in germanosilicate and boro-germanosilicate fibers. This exceptional temperature performance of the SS fiber makes it the most suitable candidate to improve the reliability of high-temperature grating-sensing applications and fiber Bragg-grating components for WDM systems. In particular, the enhanced stability of gratings written in SS fibers does not require post-fabrication annealing to satisfy the requirements of telecom components.