Enhanced refractive index sensor using a combination of a long period fiber grating and a small core singlemode fiber structure

Qiang Wu; Hau Ping Chan; Jinhui Yuan; Youqiao Ma; Minwei Yang; Yuliya Semenova; Binbin Yan; Pengfei Wang; Chongxiu Yu; Gerald Farrell

doi:10.1088/0957-0233/24/9/094002

Enhanced refractive index sensor using a combination of a long period fiber grating and a small core singlemode fiber structure

Qiang Wu, Hau Ping Chan, Jinhui Yuan, Youqiao Ma, Minwei Yang, Yuliya Semenova, Binbin Yan, Pengfei Wang, Chongxiu Yu, Gerald Farrell

Mathematics, Physics and Electrical Engineering

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

8 Citations (Scopus)

Abstract

An enhanced refractive index (RI) sensor based on a combination of a long period fiber grating (LPG) and a small core singlemode fiber (SCSMF) structure is proposed and developed. Since the LPG and SCSMF transmission spectra experience a blue and a red shift respectively as the surrounding RI (SRI) increases, the sensitivity is improved by measuring the separation between the resonant wavelengths of the LPG and SCSMF structures. Experimental results show that the sensor has a sensitivity of 1028 nm/SRI unit in the SRI range from 1.422 to 1.429, which is higher than individual sensitivities of either structure alone used in the experiment. Experimental results agree well with simulation results.

Original language	English
Pages (from-to)	094002
Journal	Measurement Science and Technology
Volume	24
Issue number	9
DOIs	https://doi.org/10.1088/0957-0233/24/9/094002
Publication status	Published - 2013

Keywords

refractive index sensor
long period fiber grating

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10.1088/0957-0233/24/9/094002

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title = "Enhanced refractive index sensor using a combination of a long period fiber grating and a small core singlemode fiber structure",

abstract = "An enhanced refractive index (RI) sensor based on a combination of a long period fiber grating (LPG) and a small core singlemode fiber (SCSMF) structure is proposed and developed. Since the LPG and SCSMF transmission spectra experience a blue and a red shift respectively as the surrounding RI (SRI) increases, the sensitivity is improved by measuring the separation between the resonant wavelengths of the LPG and SCSMF structures. Experimental results show that the sensor has a sensitivity of 1028 nm/SRI unit in the SRI range from 1.422 to 1.429, which is higher than individual sensitivities of either structure alone used in the experiment. Experimental results agree well with simulation results.",

keywords = "refractive index sensor, long period fiber grating",

author = "Qiang Wu and Chan, {Hau Ping} and Jinhui Yuan and Youqiao Ma and Minwei Yang and Yuliya Semenova and Binbin Yan and Pengfei Wang and Chongxiu Yu and Gerald Farrell",

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TY - JOUR

T1 - Enhanced refractive index sensor using a combination of a long period fiber grating and a small core singlemode fiber structure

AU - Wu, Qiang

AU - Chan, Hau Ping

AU - Yuan, Jinhui

AU - Ma, Youqiao

AU - Yang, Minwei

AU - Semenova, Yuliya

AU - Yan, Binbin

AU - Wang, Pengfei

AU - Yu, Chongxiu

AU - Farrell, Gerald

PY - 2013

Y1 - 2013

N2 - An enhanced refractive index (RI) sensor based on a combination of a long period fiber grating (LPG) and a small core singlemode fiber (SCSMF) structure is proposed and developed. Since the LPG and SCSMF transmission spectra experience a blue and a red shift respectively as the surrounding RI (SRI) increases, the sensitivity is improved by measuring the separation between the resonant wavelengths of the LPG and SCSMF structures. Experimental results show that the sensor has a sensitivity of 1028 nm/SRI unit in the SRI range from 1.422 to 1.429, which is higher than individual sensitivities of either structure alone used in the experiment. Experimental results agree well with simulation results.

AB - An enhanced refractive index (RI) sensor based on a combination of a long period fiber grating (LPG) and a small core singlemode fiber (SCSMF) structure is proposed and developed. Since the LPG and SCSMF transmission spectra experience a blue and a red shift respectively as the surrounding RI (SRI) increases, the sensitivity is improved by measuring the separation between the resonant wavelengths of the LPG and SCSMF structures. Experimental results show that the sensor has a sensitivity of 1028 nm/SRI unit in the SRI range from 1.422 to 1.429, which is higher than individual sensitivities of either structure alone used in the experiment. Experimental results agree well with simulation results.

KW - refractive index sensor

KW - long period fiber grating

U2 - 10.1088/0957-0233/24/9/094002

DO - 10.1088/0957-0233/24/9/094002

M3 - Article

SN - 0957-0233

VL - 24

SP - 094002

JO - Measurement Science and Technology

JF - Measurement Science and Technology

IS - 9

ER -

Enhanced refractive index sensor using a combination of a long period fiber grating and a small core singlemode fiber structure

Abstract

Keywords

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