Fs FBGs as probes to monitor thermal regeneration mechanisms

K. Chah; D. Kinet; K. Yüksel; C. Caucheteur

doi:10.1117/12.2541130

28 August 2019 Fs FBGs as probes to monitor thermal regeneration mechanisms

K. Chah, D. Kinet, K. Yüksel, C. Caucheteur

Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 1119936 (2019) https://doi.org/10.1117/12.2541130
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus

Abstract

This paper shows that fiber Bragg gratings written in standard single mode optical fiber with IR femtosecond pulses and point-by-point technique are high temperature resistant (<1000°C). Moreover, after calibration process, these gratings can be used as a reference to study and discriminate between different high temperature annealing mechanisms involved in other types of gratings and/or fibers. Here we have considered the regeneration process of gratings written by UV laser in boron/germanium co-doped single mode optical fiber. Hence, the monitoring of grating strength and differential wavelength shift between femtosecond and type-I gratings during annealing cycle yields the wavelength shift due to the annealing of doping (mainly boron) and UV-related defects and their relative contributions to the regeneration mechanism.

Citation Download Citation

K. Chah, D. Kinet, K. Yüksel, and C. Caucheteur "Fs FBGs as probes to monitor thermal regeneration mechanisms", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 1119936 (28 August 2019); https://doi.org/10.1117/12.2541130

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