Characterization of nanolayer LPG refractometer according surrounding refractive index

E. Simões; I. Abe; J. Oliveira; J. L. Pinto; P. Caldas; O. Frazão

doi:10.1117/12.866276

8 September 2010 Characterization of nanolayer LPG refractometer according surrounding refractive index

E. Simões, I. Abe, J. Oliveira, J. L. Pinto, P. Caldas, O. Frazão

Author Affiliations +

Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76531S (2010) https://doi.org/10.1117/12.866276
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal

Abstract

In this work the behavior of an optical fiber Long Period Grating (LPG) refractometer with the variations of the surrounding refractive index is discussed. The objective is to characterize optical fiber refractometers sensitive to surrounding refractive index, higher and lower than the cladding. For values of surrounding refractive index higher than the cladding, the LPG does not show enough sensitivity. For this reason, a nanolayer of an organic material was coated onto the fiber, using the Langmuir-Blodgett technique. We characterized LPG covered with different nanolayers thickness (110 and 120 nm) relatively to changes in surrounding refractive index.

Citation Download Citation

E. Simões, I. Abe, J. Oliveira, J. L. Pinto, P. Caldas, and O. Frazão "Characterization of nanolayer LPG refractometer according surrounding refractive index", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76531S (8 September 2010); https://doi.org/10.1117/12.866276

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