Two interrogated FBG spectral linewidth for strain sensing through correlation

Shih Hsiang Hsu, Kuo Wei Chuang, Ci Syu Chen, Ching Yu Lin, Che Chang Chang

研究成果: 雜誌貢獻文章

摘要

The spectral linewidth from two cross-correlated fiber Bragg gratings (FBGs) are interrogated and characterized using a delayed self-homodyne method for fiber strain sensing. This approach employs a common higher frequency resolution instead of wavelength. A sensitivity and resolution of 166 MHz/με and 50 nε were demonstrated from 4 GHz spectral linewidth characterization on the electric spectrum analyzer. A 10 nε higher resolution can be expected through random noise analyses when the spectral linewidth from two FBG correlations is reduced to 1 GHz. Moreover, the FBG spectrum is broadened during strain and experimentally shows a 0.44 pm/με sensitivity, which is mainly caused by the photo elastic effect from the fiber grating period stretch.
原文英語
文章編號2837
期刊Sensors (Switzerland)
17
發行號12
DOIs
出版狀態已發佈 - 十二月 7 2017

指紋

Elastic Tissue
Fiber Bragg gratings
Linewidth
Bragg gratings
fibers
Photoelasticity
Spectrum analyzers
Fibers
sensitivity
Wavelength
gratings (spectra)
random noise
analyzers
gratings
high resolution
wavelengths

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

引用此文

Two interrogated FBG spectral linewidth for strain sensing through correlation. / Hsu, Shih Hsiang; Chuang, Kuo Wei; Chen, Ci Syu; Lin, Ching Yu; Chang, Che Chang.

於: Sensors (Switzerland), 卷 17, 編號 12, 2837, 07.12.2017.

研究成果: 雜誌貢獻文章

@article{fae48252d51445b5abff5abcb0b0dc48,
title = "Two interrogated FBG spectral linewidth for strain sensing through correlation",
abstract = "The spectral linewidth from two cross-correlated fiber Bragg gratings (FBGs) are interrogated and characterized using a delayed self-homodyne method for fiber strain sensing. This approach employs a common higher frequency resolution instead of wavelength. A sensitivity and resolution of 166 MHz/με and 50 nε were demonstrated from 4 GHz spectral linewidth characterization on the electric spectrum analyzer. A 10 nε higher resolution can be expected through random noise analyses when the spectral linewidth from two FBG correlations is reduced to 1 GHz. Moreover, the FBG spectrum is broadened during strain and experimentally shows a 0.44 pm/με sensitivity, which is mainly caused by the photo elastic effect from the fiber grating period stretch.",
keywords = "Correlation, Fiber bragg gratings, Fiber optics sensors, Remote sensing and sensors, Spectral linewidth",
author = "Hsu, {Shih Hsiang} and Chuang, {Kuo Wei} and Chen, {Ci Syu} and Lin, {Ching Yu} and Chang, {Che Chang}",
year = "2017",
month = "12",
day = "7",
doi = "10.3390/s17122837",
language = "English",
volume = "17",
journal = "Sensors",
issn = "1424-3210",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "12",

}

TY - JOUR

T1 - Two interrogated FBG spectral linewidth for strain sensing through correlation

AU - Hsu, Shih Hsiang

AU - Chuang, Kuo Wei

AU - Chen, Ci Syu

AU - Lin, Ching Yu

AU - Chang, Che Chang

PY - 2017/12/7

Y1 - 2017/12/7

N2 - The spectral linewidth from two cross-correlated fiber Bragg gratings (FBGs) are interrogated and characterized using a delayed self-homodyne method for fiber strain sensing. This approach employs a common higher frequency resolution instead of wavelength. A sensitivity and resolution of 166 MHz/με and 50 nε were demonstrated from 4 GHz spectral linewidth characterization on the electric spectrum analyzer. A 10 nε higher resolution can be expected through random noise analyses when the spectral linewidth from two FBG correlations is reduced to 1 GHz. Moreover, the FBG spectrum is broadened during strain and experimentally shows a 0.44 pm/με sensitivity, which is mainly caused by the photo elastic effect from the fiber grating period stretch.

AB - The spectral linewidth from two cross-correlated fiber Bragg gratings (FBGs) are interrogated and characterized using a delayed self-homodyne method for fiber strain sensing. This approach employs a common higher frequency resolution instead of wavelength. A sensitivity and resolution of 166 MHz/με and 50 nε were demonstrated from 4 GHz spectral linewidth characterization on the electric spectrum analyzer. A 10 nε higher resolution can be expected through random noise analyses when the spectral linewidth from two FBG correlations is reduced to 1 GHz. Moreover, the FBG spectrum is broadened during strain and experimentally shows a 0.44 pm/με sensitivity, which is mainly caused by the photo elastic effect from the fiber grating period stretch.

KW - Correlation

KW - Fiber bragg gratings

KW - Fiber optics sensors

KW - Remote sensing and sensors

KW - Spectral linewidth

UR - http://www.scopus.com/inward/record.url?scp=85037531783&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85037531783&partnerID=8YFLogxK

U2 - 10.3390/s17122837

DO - 10.3390/s17122837

M3 - Article

AN - SCOPUS:85037531783

VL - 17

JO - Sensors

JF - Sensors

SN - 1424-3210

IS - 12

M1 - 2837

ER -