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Sensors 2007, 7(11), 2970-2983; doi:10.3390/s7112970

Recent Advances in High-Birefringence Fiber Loop Mirror Sensors

1,* , 1
1 INESC Porto, Unidade de Optoelectrónica e Sistemas Electrónicos, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal 2 Dept. de Matemática e Engenharias, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal 3 Dept. de Física da Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
* Author to whom correspondence should be addressed.
Received: 21 September 2007 / Accepted: 23 November 2007 / Published: 26 November 2007
(This article belongs to the Special Issue Optical Biosensors)
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Recent advances in devices and applications of high-birefringence fiber loopmirror sensors are addressed. In optical sensing, these devices may be used as strain andtemperature sensors, in a separate or in a simultaneous measurement. Other describedapplications include: refractive index measurement, optical filters for interrogate gratingsstructures and chemical etching control. The paper analyses and compares different types ofhigh-birefringence fiber loop mirror sensors using conventional and microstructured opticalfibers. Some configurations are presented for simultaneous measurement of physicalparameters when combined with others optical devices, for example with a long periodgrating.
Keywords: optical fiber sensors; fiber loop mirror; high-birefringence fiber. optical fiber sensors; fiber loop mirror; high-birefringence fiber.
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Frazão, O.; Baptista, J.M.T.; Santos, J.L. Recent Advances in High-Birefringence Fiber Loop Mirror Sensors. Sensors 2007, 7, 2970-2983.

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