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Conferences > OFS > 2020 > W4 > W4.45

Graphene oxide diaphragm for acoustic fiber sensing

Catarina S. Monteiro, Susana O. Silva, José Lúıs Santos, and Orlando Frazão

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Abstract

A fiber sensor composed by a graphene oxide membrane at the tip of a capillary is presented. The graphene oxide membrane acts as a low-reflectivity mirror, distanced from a single mode fiber forming a low finesse Fabry-Perot interferometer. The response of the sensor to acoustic pressure with varying frequency is studied in the range between 5 and 45 kHz, attaining a minimum signal to noise ratio of 14 dB.

© 2020 The Author(s)

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