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, Hai 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 - 2013/9
Y1 - 2013/9
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. © 2013 IOP Publishing Ltd.
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. © 2013 IOP Publishing Ltd.
UR - http://www.scopus.com/inward/record.url?scp=84883152590&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84883152590&origin=recordpage
U2 - 10.1088/0957-0233/24/9/094002
DO - 10.1088/0957-0233/24/9/094002
M3 - RGC 21 - Publication in refereed journal
SN - 0957-0233
VL - 24
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 9
M1 - 94002
ER -