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|Title:||Bragg Gratings In Surface-core Fibers: Refractive Index And Directional Curvature Sensing|
Jonas H.; Oliveira
Marcos A. R.; Nogueira
Rogerio N.; Cordeiro
Cristiano M. B.
|Abstract:||In this paper, we report, to our knowledge, the first extended study of the inscription of Bragg gratings in surface-core fibers and their application in refractive index and directional curvature sensing. The research ranges from fiber fabrication and grating inscription in untapered and tapered fibers to the performance of simulations and sensing measurements. Maximum sensitivities of 40 nm/RIU and 202.7 pm/ m (1) were attained in refractive index and curvature measurements respectively. The obtained results compares well to other fiber Bragg grating based devices. Ease of fabrication, robustness and versatility makes surface-core fibers an interesting platform when exploring fiber sensing devices. (C) 2017 Elsevier Inc. All rights reserved.|
|Editor:||Elsevier Science Inc|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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