Bandyopadhyay, Sankhyabrata and Del Villar, Ignacio and Basumallick, Nandini and Biswas, Palas and Dey, Tanoy Kumar and Bandyopadhyay, Somnath (2018) Long Period Fiber Grating for Biosensing: An Improved Design Methodology to Enhance Add-Layer Sensitivity. Journal of Lightwave Technology, 36 (4, SI). pp. 1178-1184. ISSN 0733-8724

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We present our theoretical study on the design of long period fiber grating (LPFG) sensor where its add-layer sensitivity is enhanced. Add-layer sensitivity quantifies the sensitivity of the sensor to the changes taking place within few tens of nanometers around the receptor molecules. Two different methodologies: the use of dual overlay layer and tailoring of the intermodal separation between two cladding modes have been used to enhance the add-layer sensisstivity. Using coupled mode analysis, we compute several examples to carry out a detailed comparative analysis between the results obtained, focusing on the cladding mode near mode transition.

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 05 Sep 2018 07:41
Last Modified: 05 Sep 2018 07:41

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