Laser Brazing metallic embedding technique for fiber optic sensors

Tania Grandal; Sergio Fraga; Gemma Castro; Esteban Vazquez; Ander Zornoza

doi:10.1117/12.2263974

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23 April 2017 Laser Brazing metallic embedding technique for fiber optic sensors

Tania Grandal, Sergio Fraga, Gemma Castro, Esteban Vazquez, Ander Zornoza

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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236S (2017) https://doi.org/10.1117/12.2263974
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

In this paper a fiber optic metallic embedding technique is presented based on laser Brazing manufacturing process. The embedding strategy to follow by the laser Brazing, which consists in three steps, minimizes the thermal stress of the embedded fiber, relaxes microbending strains and reduces damage on the fiber. The minimum embedded fiber optic Ni coating total diameter is 237 μm for a successful process with negligible optical loss on the fiber. Fiber Bragg Gratings were successfully embedded in metallic specimens and their strain response was in accordance with their specifications.

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Tania Grandal, Sergio Fraga, Gemma Castro, Esteban Vazquez, and Ander Zornoza "Laser Brazing metallic embedding technique for fiber optic sensors", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236S (23 April 2017); https://doi.org/10.1117/12.2263974

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