Fiber bragg grating parameter estimation by using two thermally-modulated intensity spectra for arbitrary distributed strain sensing

Hsu Chih Cheng, Yu-Lung Lo

Research output: Contribution to journalConference article

Abstract

In this paper we describe the use of a genetic algorithm and two thermally-modulated fiber Bragg grating's (FBG's) reflection intensity spectra for inversely extracting complete physical parameters. The fiber Bragg grating's complete parameters included the grating period, grating position, grating length, chirped direction, and refractive index modulation. In this study, a uniform and chirped fiber Bragg gratings are synthesized successfully in the numerical analysis. Also, the experimental results show that the complete parameter synthesis in grating period, grating length, refractive index modulation and various grating positions from a 10 mm length uniform FBG have been recovered accurately. After finding those physical parameters, the arbitrary distributed strain sensing technique is easy to accomplish by using two fiber Bragg gratings sensing techniques.

Original languageEnglish
Article number59
Pages (from-to)365-371
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5852 PART I
DOIs
Publication statusPublished - 2005 Dec 12
EventThird International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics - Singapore, Singapore
Duration: 2004 Nov 292004 Dec 1

Fingerprint

Fiber Grating
Fiber Bragg gratings
Bragg Grating
Parameter estimation
Gratings
Bragg gratings
Parameter Estimation
Sensing
gratings
fibers
Arbitrary
Diffraction gratings
Refractive index
Refractive Index
Modulation
refractivity
modulation
Numerical analysis
genetic algorithms
Genetic algorithms

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

@article{1638cd04522e4040a315d21e3c349c3b,
title = "Fiber bragg grating parameter estimation by using two thermally-modulated intensity spectra for arbitrary distributed strain sensing",
abstract = "In this paper we describe the use of a genetic algorithm and two thermally-modulated fiber Bragg grating's (FBG's) reflection intensity spectra for inversely extracting complete physical parameters. The fiber Bragg grating's complete parameters included the grating period, grating position, grating length, chirped direction, and refractive index modulation. In this study, a uniform and chirped fiber Bragg gratings are synthesized successfully in the numerical analysis. Also, the experimental results show that the complete parameter synthesis in grating period, grating length, refractive index modulation and various grating positions from a 10 mm length uniform FBG have been recovered accurately. After finding those physical parameters, the arbitrary distributed strain sensing technique is easy to accomplish by using two fiber Bragg gratings sensing techniques.",
author = "Cheng, {Hsu Chih} and Yu-Lung Lo",
year = "2005",
month = "12",
day = "12",
doi = "10.1117/12.621705",
language = "English",
volume = "5852 PART I",
pages = "365--371",
journal = "Proceedings of SPIE - The International Society for Optical Engineering",
issn = "0277-786X",
publisher = "SPIE",

}

TY - JOUR

T1 - Fiber bragg grating parameter estimation by using two thermally-modulated intensity spectra for arbitrary distributed strain sensing

AU - Cheng, Hsu Chih

AU - Lo, Yu-Lung

PY - 2005/12/12

Y1 - 2005/12/12

N2 - In this paper we describe the use of a genetic algorithm and two thermally-modulated fiber Bragg grating's (FBG's) reflection intensity spectra for inversely extracting complete physical parameters. The fiber Bragg grating's complete parameters included the grating period, grating position, grating length, chirped direction, and refractive index modulation. In this study, a uniform and chirped fiber Bragg gratings are synthesized successfully in the numerical analysis. Also, the experimental results show that the complete parameter synthesis in grating period, grating length, refractive index modulation and various grating positions from a 10 mm length uniform FBG have been recovered accurately. After finding those physical parameters, the arbitrary distributed strain sensing technique is easy to accomplish by using two fiber Bragg gratings sensing techniques.

AB - In this paper we describe the use of a genetic algorithm and two thermally-modulated fiber Bragg grating's (FBG's) reflection intensity spectra for inversely extracting complete physical parameters. The fiber Bragg grating's complete parameters included the grating period, grating position, grating length, chirped direction, and refractive index modulation. In this study, a uniform and chirped fiber Bragg gratings are synthesized successfully in the numerical analysis. Also, the experimental results show that the complete parameter synthesis in grating period, grating length, refractive index modulation and various grating positions from a 10 mm length uniform FBG have been recovered accurately. After finding those physical parameters, the arbitrary distributed strain sensing technique is easy to accomplish by using two fiber Bragg gratings sensing techniques.

UR - http://www.scopus.com/inward/record.url?scp=28444457337&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28444457337&partnerID=8YFLogxK

U2 - 10.1117/12.621705

DO - 10.1117/12.621705

M3 - Conference article

VL - 5852 PART I

SP - 365

EP - 371

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

M1 - 59

ER -