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|Type:||Artigo de periódico|
|Title:||Simultaneous measurement of refractive index and temperature using multimode interference inside a high birefringence fiber loop mirror|
|Abstract:||A fiber optic sensor for simultaneous measurement of refractive index and temperature is presented. The sensing probe is realized by introducing a multimode interference device inside a high birefringence fiber loop mirror resulting in a configuration capable of refractive index and temperature discrimination. The multimode interference peak is sensitive to the surrounding refractive index (90 nm/RIU) and slightly responsive to the temperature (0.01 nm/ degrees C). On the other hand, the birefringent fiber loop mirror is highly sensitive to temperature (2.36 nm/ degrees C) and it has almost no response to refractive index. Using a power ratiometric peak detection scheme, a temperature independent refractive index measurement can be achieved with a resolution of +/- 2.25 x 10(-5) RIU. (c) 2012 Elsevier B.V. All rights reserved.|
|Subject:||Fiber loop mirror|
Refractive index measurement
Refractive index and temperature discrimination
|Editor:||Elsevier Science Sa|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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