Analysis of the Lowest Order Cladding Mode of Long Period Fiber Gratings Near Turn Around Point
| Autor: | Palas Biswas, Ambra Giannetti, Cosimo Trono, Sara Tombelli, Somnath Bandyopadhyay, Nandini Basumallick, Tanoy Kumar Dey, Francesco Baldini |
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| Rok vydání: | 2021 |
| Předmět: |
Fiber gratings
Coupling Materials science business.industry Resonance Long-period fiber grating Cladding mode Atomic and Molecular Physics and Optics Sensitivity Etching Optical fiber dispersion Couplings Gratings Optical fiber sensors Long period fiber gratings turn around point evanescent field etching Wavelength Optics business Sensitivity (electronics) Refractive index |
| Zdroj: | Journal of lightwave technology (Online) (2020): 1–7. doi:10.1109/JLT.2020.2987795 info:cnr-pdr/source/autori:T. K. Dey and S. Tombelli and P. Biswas and A. Giannetti and N. Basumallick and F. Baldini and S. Bandyopdhayay and C. Trono/titolo:Analysis of the Lowest Order Cladding Mode of Long Period Fiber Gratings near Turn Around Point/doi:10.1109%2FJLT.2020.2987795/rivista:Journal of lightwave technology (Online)/anno:2020/pagina_da:1/pagina_a:7/intervallo_pagine:1–7/volume |
| ISSN: | 1558-2213 0733-8724 |
| DOI: | 10.1109/jlt.2020.2987795 |
| Popis: | A long period fiber grating (LPFG) sensor has been fabricated, after theoretical analysis, obtaining the maximum enhancement of the evanescent field working with the lowest order cladding mode (LP0,2 cladding mode) near turn around point. Both the wavelengths of the dual peak resonance and the coupling conditions of the mode have been analyzed in detail. A flow cell has been fabricated to characterize the sensor in term of surrounding refractive index (SRI) sensitivity. The sensitivity of the sensor resulted to be ~ 8751 nm/SRIU, with a resolution in the order of 10-5, within the SRI range of 1.333 to 1.3335. |
| Databáze: | OpenAIRE |
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