Multi-functional double rare-earth-doped ball sensor based on a hollow-core microstructure fiber.
Opt Lett
; 44(9): 2350-2353, 2019 May 01.
Article
em En
| MEDLINE
| ID: mdl-31042220
ABSTRACT
In this Letter, we demonstrated an ∞-type multi-functional sensor through splicing double rare-earth-doped balls (REDBs) with a hollow-core microstructure fiber. Utilizing the different thermal expansion and thermo-optic coefficients of silica and rare earth, the interference of REDBs will be more sensitive to temperature. On both ends of the dual-ball, we spliced the anti-resonance fiber (ARF) to satisfy the broad waveband transmission. In addition, the special anti-resonance loss peak of the ARF can make the amplitude change of the signal more obvious. The experiments prove that a multi-functional sensor is capable of detecting versatile parameters, such as the illumination response, liquid concentration, and ambient temperature. In addition, the temperature sensitivity can reach 1 nm/°C, and the illumination response is obvious. We also analyze the concentration of P-Methylthiophenol, a substance harmful to human beings in the environment. Its resolution can reach 3.125E-5 mol/L. These results indicate that the sensor can be used in underground mine detection, environmental monitoring, and so on.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2019
Tipo de documento:
Article
País de publicação:
EEUU
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ESTADOS UNIDOS
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ESTADOS UNIDOS DA AMERICA
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EUA
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UNITED STATES
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UNITED STATES OF AMERICA
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US
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USA