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|Title:||Analysis of immersed silica optical microfiber knot resonator and its application as a moisture sensor|
|Author:||Gouveia, M. A.|
Pellegrini, P. E. S.
dos Santos, J. S.
Raimundo, I. M.
Cordeiro, C. M. B.
|Abstract:||An embedded silica optical microfiber knot resonator humidity sensor is presented. As silica has a poor response to environmental humidity changes, a surrounding layer of Nafion is used as a transducer. Spectral characterization and also a procedure to determine the coupling and total loss coefficients are presented. Sensitivity as high as (0.29 +/- 0.01) nm/% relative humidity has been noticed. Possible issues that emerge from the use of Nafion such as bulk swelling, refractive index hysteresis, as well as a saturation process, are discussed.|
|Subject:||Detectores de fibra ótica|
Índice de refração
Optical fiber detectors
|Editor:||Optical Society of America|
|Appears in Collections:||IQ - Artigos e Outros Documentos|
IFGW - Artigos e Outros Documentos
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