Performance study of a liquid-core Bragg fiber sensor in presence of a defect layer

• Autorzy: Chourasia R. K. , Prasad S. , Singh V.

Identyfikatory

DOI

10.1016/j.opelre.2017.06.002

• Języki publikacji: EN

Abstrakty

EN

Performance parameter of a Bragg fiber waveguide based resonant sensor in presence of a defect layer in cladding regions is theoretically studied. The Bragg fiber waveguide consists of a liquid-core surrounded by alternate high and low refractive indices materials in cladding regions. Reflectivity of the proposed waveguide based resonant sensor is formulated using transfer matrix method for a non-homogeneous multilayer cylindrical system. The waveguide shows a band gap region with a narrow defect mode in the band gap region under the considered wavelength range. Instead of taking a whole band gap as a sensing signal, here the defect peak is taken as the sensing signal. It is observed that the intensity of defect mode is more sensitive for core refractive index than the intensity of traditional band gap region (lobe). This study shows that the higher sensitivity can be achieved by creating the defect at a position in cladding region where the intensity of transmitted light lies between 40% and 90%. Presence of a defect layer is able to increase the detection accuracy of the sensor and, hence increase the overall performance of this sensor.

Słowa kluczowe

EN

Bragg fiber based sensor; liquid filled core; defect mode; sensitivity

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2017
• Tom: Vol. 25, No. 3
• Strony: 215--221
• Opis fizyczny: Bibligr. 22 poz., rys., wykr.

Twórcy

autor

Chourasia R. K.

• Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India

autor

Prasad S.

• Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India

autor

Singh V.

• Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)