Ultra-Sensitive Fiber Optic Gas Sensor Using Graphene Oxide Coated Long Period Gratings

Mandeep Singh; Sanjeev Kumar Raghuwanshi; Om Prakash

doi:10.1109/LPT.2019.2932764

Ultra-Sensitive Fiber Optic Gas Sensor Using Graphene Oxide Coated Long Period Gratings

Mandeep Singh^*
, Sanjeev Kumar Raghuwanshi
, Om Prakash

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

In this letter, we develop two types of refractive index based sensors using single-mode fiber (SMF-28) to sense hazardous toxic gases in underground mines. The first sensor design is simply a graphene-oxide (GO) deposited long period grating (LPG) and second sensor consist of two LPGs with an interspacing distance of 1 cm (Δl) acting as Mach-Zehnder interferometer (MZI). In addition, we also confirm GO deposition on the SMF using ultraviolet-visible spectroscopy, atomic force microscopy (AFM), and field emission scanning electron micrograph (FESEM). Our experiment results show that the sensitivity of two-LPGs based fiber optic sensor (S_LPG-2 = 76.32 dB/RIU) is higher as compared to the single LPG sensor (S_LPG-1 = 54.65 dB/RIU). Hence, reported graphene oxide deposited long period grating sensor possess better sensitivity and can detect maximum 1.52× 10^-5 index variation in the optical telecommunication band.

Original language	English
Article number	8786126
Pages (from-to)	1473-1476
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	31
Issue number	17
DOIs	https://doi.org/10.1109/LPT.2019.2932764
Publication status	Published - 01-09-2019

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Access to Document

10.1109/LPT.2019.2932764

Cite this

@article{c7544c7c5ceb4faeac114c9dcd540c4e,

title = "Ultra-Sensitive Fiber Optic Gas Sensor Using Graphene Oxide Coated Long Period Gratings",

abstract = "In this letter, we develop two types of refractive index based sensors using single-mode fiber (SMF-28) to sense hazardous toxic gases in underground mines. The first sensor design is simply a graphene-oxide (GO) deposited long period grating (LPG) and second sensor consist of two LPGs with an interspacing distance of 1 cm (Δl) acting as Mach-Zehnder interferometer (MZI). In addition, we also confirm GO deposition on the SMF using ultraviolet-visible spectroscopy, atomic force microscopy (AFM), and field emission scanning electron micrograph (FESEM). Our experiment results show that the sensitivity of two-LPGs based fiber optic sensor (SLPG-2 = 76.32 dB/RIU) is higher as compared to the single LPG sensor (SLPG-1 = 54.65 dB/RIU). Hence, reported graphene oxide deposited long period grating sensor possess better sensitivity and can detect maximum 1.52× 10-5 index variation in the optical telecommunication band.",

author = "Mandeep Singh and Raghuwanshi, \{Sanjeev Kumar\} and Om Prakash",

note = "Publisher Copyright: {\textcopyright} 1989-2012 IEEE.",

year = "2019",

month = sep,

day = "1",

doi = "10.1109/LPT.2019.2932764",

language = "English",

volume = "31",

pages = "1473--1476",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "17",

}

TY - JOUR

T1 - Ultra-Sensitive Fiber Optic Gas Sensor Using Graphene Oxide Coated Long Period Gratings

AU - Singh, Mandeep

AU - Raghuwanshi, Sanjeev Kumar

AU - Prakash, Om

PY - 2019/9/1

Y1 - 2019/9/1

N2 - In this letter, we develop two types of refractive index based sensors using single-mode fiber (SMF-28) to sense hazardous toxic gases in underground mines. The first sensor design is simply a graphene-oxide (GO) deposited long period grating (LPG) and second sensor consist of two LPGs with an interspacing distance of 1 cm (Δl) acting as Mach-Zehnder interferometer (MZI). In addition, we also confirm GO deposition on the SMF using ultraviolet-visible spectroscopy, atomic force microscopy (AFM), and field emission scanning electron micrograph (FESEM). Our experiment results show that the sensitivity of two-LPGs based fiber optic sensor (SLPG-2 = 76.32 dB/RIU) is higher as compared to the single LPG sensor (SLPG-1 = 54.65 dB/RIU). Hence, reported graphene oxide deposited long period grating sensor possess better sensitivity and can detect maximum 1.52× 10-5 index variation in the optical telecommunication band.

AB - In this letter, we develop two types of refractive index based sensors using single-mode fiber (SMF-28) to sense hazardous toxic gases in underground mines. The first sensor design is simply a graphene-oxide (GO) deposited long period grating (LPG) and second sensor consist of two LPGs with an interspacing distance of 1 cm (Δl) acting as Mach-Zehnder interferometer (MZI). In addition, we also confirm GO deposition on the SMF using ultraviolet-visible spectroscopy, atomic force microscopy (AFM), and field emission scanning electron micrograph (FESEM). Our experiment results show that the sensitivity of two-LPGs based fiber optic sensor (SLPG-2 = 76.32 dB/RIU) is higher as compared to the single LPG sensor (SLPG-1 = 54.65 dB/RIU). Hence, reported graphene oxide deposited long period grating sensor possess better sensitivity and can detect maximum 1.52× 10-5 index variation in the optical telecommunication band.

UR - https://www.scopus.com/pages/publications/85071305807

UR - https://www.scopus.com/pages/publications/85071305807#tab=citedBy

U2 - 10.1109/LPT.2019.2932764

DO - 10.1109/LPT.2019.2932764

M3 - Article

AN - SCOPUS:85071305807

SN - 1041-1135

VL - 31

SP - 1473

EP - 1476

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 17

M1 - 8786126

ER -

Ultra-Sensitive Fiber Optic Gas Sensor Using Graphene Oxide Coated Long Period Gratings

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this