Extraordinary pressure sensitivity of long-period gratings written in a boron co-doped optical fiber

Mateusz Smietana; Wojtek J. Bock; Jiahua Chen; Predrag Mikulic

doi:10.1117/12.835364

5 October 2009 Extraordinary pressure sensitivity of long-period gratings written in a boron co-doped optical fiber

Mateusz Smietana, Wojtek J. Bock, Jiahua Chen, Predrag Mikulic

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 75033D (2009) https://doi.org/10.1117/12.835364
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

The paper presents novel pressure sensor based on the long period gratings written with an arc-induced method in a boron co-doped photosensitive fiber. The achieved pressure sensitivity is at least 5 times higher than for the gratings written in other fibers and presented to date. It was found that the incorporation of B2O3 in the core of the fiber is responsible for its higher pressure sensitivity. This conclusion has been achieved after considering the variations of the elastic properties of the glass versus its composition. The sensitivity of the structure to temperature and to external refractive index was also discussed. It was proven that the experiment was conducted in a way that the measured pressure sensitivity was not affected by the temperature or by the external refractive index variations.

Citation Download Citation

Mateusz Smietana, Wojtek J. Bock, Jiahua Chen, and Predrag Mikulic "Extraordinary pressure sensitivity of long-period gratings written in a boron co-doped optical fiber", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75033D (5 October 2009); https://doi.org/10.1117/12.835364

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