Dey, Tanoy Kumar and Tombelli, Sara and Biswas, Palas and Giannetti, Ambra and Basumallick, Nandini and Baldini, Francesco and Bandyopadhyay, Somnath and Trono, Cosimo (2021) Analysis of the Lowest Order Cladding Mode of Long Period Fiber Gratings Near Turn Around Point. Journal of Lightwave Technology, 39 (12). pp. 4006-4012. ISSN 0733-8724

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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 similar to 8751 nm/SRIU, with a resolution in the order of 10(-5), within the SRI range of 1.333 to 1.3335.

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 24 Dec 2021 06:32
Last Modified: 24 Dec 2021 06:32

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