Interferometric fiber Bragg grating shift demodulation

Karol Stepien; Michalina Jóźwik; Tomasz Nasilowski

doi:10.1117/12.2194883

28 September 2015 Interferometric fiber Bragg grating shift demodulation

Karol Stepien, Michalina Jóźwik, Tomasz Nasilowski

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96347O (2015) https://doi.org/10.1117/12.2194883
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

In this paper we present a fiber Bragg grating shift demodulator with changeable resolution based on an unbalanced fiber Mach–Zehnder interferometer. Preliminary research proves phase sensitivity to Bragg wavelength changes of 6,83 rad/mε. Phase sensitivity can be modified by changing the optical path difference witch is only limited by the coherence length of light reflected by the fiber Bragg grating. This solution can be used as a single sensor or as a part of a more complex system.

Citation Download Citation

Karol Stepien, Michalina Jóźwik, and Tomasz Nasilowski "Interferometric fiber Bragg grating shift demodulation", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347O (28 September 2015); https://doi.org/10.1117/12.2194883

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