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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 3.0).

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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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