Employing higher order cladding modes of fiber Bragg grating for analysis of refractive index change in volume and at the surface

Sankhyabarata Bandyopadhyay , Liyang Shao , Mateusz Jakub Śmietana , Chao Wang , Jie Hu , Guoqing Wang , Huang Wei-Te , Guoqiang Gu , Yang Ya Tao


In this work, a detailed study on volume and surface refractive index (RI) sensitivity of cladding modes for a fiber Bragg grating (FBG) based sensor is presented. Surface RI sensitivity of the cladding mode of FBGs has been illustrated and quantified with the concept of add-layer sensitivity for the first time to the best of our knowledge. A detailed investigation of mode transition of higher-order cladding modes has been revisited and important characteristics of the cladding modes are observed which could open a new designing path of fabrication and innovative way of use of this family of optical fiber grating-based sensors. The effect of “mode transition” of higher-order cladding modes, higher operating wavelength for respective cladding mode and “mode stretching” effects are combined together to achieve higher volume and surface RI sensitivity of cladding mode of FBG. It has been shown numerically that with proper designing, sub-nanometer (~0.04 nm) attachment of target analyte could be recognized by cladding mode of FBG which is quite promising for application in optical fiber grating bio-sensors. This critical designing method of FBG based surface refractometer would be very helpful in case of fabrication of highly sensitive sensors for distinct bio-chemical applications.
Author Sankhyabarata Bandyopadhyay
Sankhyabarata Bandyopadhyay,,
, Liyang Shao
Liyang Shao,,
, Mateusz Jakub Śmietana (FEIT / MO)
Mateusz Jakub Śmietana,,
- The Institute of Microelectronics and Optoelectronics
, Chao Wang
Chao Wang,,
, Jie Hu
Jie Hu,,
, Guoqing Wang
Guoqing Wang,,
, Huang Wei-Te
Huang Wei-Te,,
, Guoqiang Gu
Guoqiang Gu,,
, Yang Ya Tao
Yang Ya Tao,,
Journal seriesIEEE Photonics Journal, ISSN 1943-0655, e-ISSN 1943-0647
Issue year2020
Volin press
Publication size in sheets0.6
ASJC Classification2208 Electrical and Electronic Engineering; 3107 Atomic and Molecular Physics, and Optics
URL https://ieeexplore.ieee.org/document/8946730/versions
ProjectDIAMSEC-ultra-sensitive sensory platform for rapid detection of epidemiological and pandemic threats. Project leader: Śmietana Mateusz Jakub, , Phone: (22) 234 63 64, application date 04-11-2016, start date 01-06-2017, planned end date 31-05-2020, MO/2016/7, Implemented
WEiTI Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR)]
Languageen angielski
Score (nominal)100
Score sourcejournalList
ScoreMinisterial score = 100.0, 14-09-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 1; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.129; WoS Impact Factor: 2018 = 2.729 (2) - 2018=2.759 (5)
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