Sensitivity Analysis of Sidelobes of the Lowest Order Cladding Mode of Long Period Fiber Gratings at Turn Around Point

A new methodology to enhance the sensitivity of a long period fiber grating sensor (LPFG) at the Turn Around Point (TAP) is here presented. The LPFG sensor has been fabricated by etching the fiber up to 20.4 µm, until the sidelobes of dispersed LP cladding mode appeared near TAP in aqueous medium. T...

Full description

Saved in:

Bibliographic Details
Published in:	Sensors (Basel, Switzerland) Vol. 22; no. 8; p. 2965
Main Authors:	Dey, Tanoy Kumar, Tombelli, Sara, Roy, Arpan, Biswas, Palas, Giannetti, Ambra, Basumallick, Nandini, Baldini, Francesco, Bandyopadhyay, Somnath, Trono, Cosimo
Format:	Journal Article
Language:	English
Published:	Switzerland MDPI AG 12-04-2022 MDPI
Subjects:	Aqueous solutions Bandwidths Cladding cladding mode Communication Etching Fiber optics Gratings (spectra) Inscriptions long period fiber grating Refractivity Sensitivity analysis sensitivity enhancement Sensors Sidelobes Spectrum allocation Italy Japan sidelobes long period fiber grating cladding mode etching sensitivity enhancement
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	A new methodology to enhance the sensitivity of a long period fiber grating sensor (LPFG) at the Turn Around Point (TAP) is here presented. The LPFG sensor has been fabricated by etching the fiber up to 20.4 µm, until the sidelobes of dispersed LP cladding mode appeared near TAP in aqueous medium. The dual peak sensitivity of the sidelobes was found to be 16,044 nm/SRIU (surrounding refractive index units) in the RI range from 1.333 to 1.3335.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1424-8220 1424-8220
DOI:	10.3390/s22082965