Abstract
We demonstrate and experimentally validate a fiber optic refractive index (RI) sensor obtained by simply etching a high-scattering MgO-based nanoparticle-doped single-mode fiber in hydrofluoric acid (HF). The fiber has 32.3 dB stronger Rayleigh scattering than a standard fiber, allowing a detection of scattering spectral signatures with an optical backscatter reflectometer, even when the core is exposed to the outer RI. The obtained sensitivity is 1.53 nm/RIU (RI units), measured by correlating the scattering spectra. We prove the possibility of implementing a distributed RI detection (seven locations spaced by 1 mm). The fabrication method for this RI sensor is simplified, since it simply requires etching in an HF bath, without the need of inscribing reflective elements or fabricating microstructures in the fiber.
| Original language | English |
|---|---|
| Pages (from-to) | 5945-5948 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 43 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - Dec 15 2018 |
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ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
Cite this
Fiber optic refractive index sensors through spectral detection of Rayleigh backscattering in a chemically etched MgO-based nanoparticle-doped fiber. / Sypabekova, Marzhan; Korganbayev, Sanzhar; Blanc, Wilfried; Ayupova, Takhmina; Bekmurzayeva, Aliya; Shaimerdenova, Madina; Dukenbayev, Kanat; Molardi, Carlo; Tosi, Daniele.
In: Optics Letters, Vol. 43, No. 24, 15.12.2018, p. 5945-5948.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fiber optic refractive index sensors through spectral detection of Rayleigh backscattering in a chemically etched MgO-based nanoparticle-doped fiber
AU - Sypabekova, Marzhan
AU - Korganbayev, Sanzhar
AU - Blanc, Wilfried
AU - Ayupova, Takhmina
AU - Bekmurzayeva, Aliya
AU - Shaimerdenova, Madina
AU - Dukenbayev, Kanat
AU - Molardi, Carlo
AU - Tosi, Daniele
PY - 2018/12/15
Y1 - 2018/12/15
N2 - We demonstrate and experimentally validate a fiber optic refractive index (RI) sensor obtained by simply etching a high-scattering MgO-based nanoparticle-doped single-mode fiber in hydrofluoric acid (HF). The fiber has 32.3 dB stronger Rayleigh scattering than a standard fiber, allowing a detection of scattering spectral signatures with an optical backscatter reflectometer, even when the core is exposed to the outer RI. The obtained sensitivity is 1.53 nm/RIU (RI units), measured by correlating the scattering spectra. We prove the possibility of implementing a distributed RI detection (seven locations spaced by 1 mm). The fabrication method for this RI sensor is simplified, since it simply requires etching in an HF bath, without the need of inscribing reflective elements or fabricating microstructures in the fiber.
AB - We demonstrate and experimentally validate a fiber optic refractive index (RI) sensor obtained by simply etching a high-scattering MgO-based nanoparticle-doped single-mode fiber in hydrofluoric acid (HF). The fiber has 32.3 dB stronger Rayleigh scattering than a standard fiber, allowing a detection of scattering spectral signatures with an optical backscatter reflectometer, even when the core is exposed to the outer RI. The obtained sensitivity is 1.53 nm/RIU (RI units), measured by correlating the scattering spectra. We prove the possibility of implementing a distributed RI detection (seven locations spaced by 1 mm). The fabrication method for this RI sensor is simplified, since it simply requires etching in an HF bath, without the need of inscribing reflective elements or fabricating microstructures in the fiber.
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U2 - 10.1364/OL.43.005945
DO - 10.1364/OL.43.005945
M3 - Article
VL - 43
SP - 5945
EP - 5948
JO - Optics Letters
JF - Optics Letters
SN - 0146-9592
IS - 24
ER -