Sensors 2012, 12(6), 8371-8389; doi:10.3390/s120608371
Review

Fiber Optic-Based Refractive Index Sensing at INESC Porto

1 INESC Porto, Rua do Campo Alegre 687, Porto 4169-007, Portugal 2 Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, Porto 4169-007, Portugal 3 Centro de Competência de Ciências Exatas e da Engenharia, Universidade da Madeira, Campus da Penteada, Funchal 9000-390, Portugal 4 Escola Superior de Tecnologia e Gestão de Viana do Castelo, Av. do Atlântico, Apartado 574, Viana do Castelo 4900-348, Portugal
* Author to whom correspondence should be addressed.
Received: 2 May 2012; in revised form: 4 June 2012 / Accepted: 6 June 2012 / Published: 18 June 2012
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Portugal)
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Abstract: A review of refractive index measurement based on different types of optical fiber sensor configurations and techniques is presented. It addresses the main developments in the area, with particular focus on results obtained at INESC Porto, Portugal. The optical fiber sensing structures studied include those based on Bragg and long period gratings, on micro-interferometers, on plasmonic effects in fibers and on multimode interference in a large spectrum of standard and microstructured optical fibers.
Keywords: refractive index measurement; Bragg gratings; long period gratings; surface plasmonic resonance; multimode interference; fiber Fabry-Perot interferometers

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MDPI and ACS Style

Jorge, P.A.S.; Silva, S.O.; Gouveia, C.; Tafulo, P.; Coelho, L.; Caldas, P.; Viegas, D.; Rego, G.; Baptista, J.M.; Santos, J.L.; Frazão, O. Fiber Optic-Based Refractive Index Sensing at INESC Porto. Sensors 2012, 12, 8371-8389.

AMA Style

Jorge PAS, Silva SO, Gouveia C, Tafulo P, Coelho L, Caldas P, Viegas D, Rego G, Baptista JM, Santos JL, Frazão O. Fiber Optic-Based Refractive Index Sensing at INESC Porto. Sensors. 2012; 12(6):8371-8389.

Chicago/Turabian Style

Jorge, Pedro A. S.; Silva, Susana O.; Gouveia, Carlos; Tafulo, Paula; Coelho, Luis; Caldas, Paulo; Viegas, Diana; Rego, Gaspar; Baptista, José M.; Santos, José L.; Frazão, Orlando. 2012. "Fiber Optic-Based Refractive Index Sensing at INESC Porto." Sensors 12, no. 6: 8371-8389.

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