KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking

Javier Hervás, Daniele Tosi, Héctor García-Miquel, David Barrera, Carlos R. Fernández-Pousa, Salvador Sales

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The Karhunen-Loeve transform (KLT) is used to retrieve the wavelength information of several fiber Bragg gratings (FBGs) that are acting as a multiplexed sensor. The modulated light of a broadband source is launched to the FBG cascade in order to capture the electrical frequency response of the system. Thanks to a dispersive media, the wavelengths of the FBGs are mapped in radiofrequency (RF) delays. Wavelength changes are determined by the amplitude change of the samples in the impulse response, a change which is followed by the eigenvalue calculated by the KLT routine. The use of the KLT routine reduces by three orders of magnitude the amount of points needed to have a sub-degree resolution in temperature sensing, while keeping the accuracy almost intact.

Original languageEnglish
Article number7575720
JournalJournal of Lightwave Technology
VolumePP
Issue number99
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

interrogation
Bragg gratings
fibers
sensors
wavelengths
frequency response
impulses
cascades
eigenvalues
broadband
temperature

Keywords

  • fiber Bragg gratings
  • Karhunen-Loeve transform
  • microwave photonics
  • Optical fiber sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Hervás, J., Tosi, D., García-Miquel, H., Barrera, D., Fernández-Pousa, C. R., & Sales, S. (2016). KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking. Journal of Lightwave Technology, PP(99), [7575720]. https://doi.org/10.1109/JLT.2016.2613131

KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking. / Hervás, Javier; Tosi, Daniele; García-Miquel, Héctor; Barrera, David; Fernández-Pousa, Carlos R.; Sales, Salvador.

In: Journal of Lightwave Technology, Vol. PP, No. 99, 7575720, 01.01.2016.

Research output: Contribution to journalArticle

Hervás, J, Tosi, D, García-Miquel, H, Barrera, D, Fernández-Pousa, CR & Sales, S 2016, 'KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking', Journal of Lightwave Technology, vol. PP, no. 99, 7575720. https://doi.org/10.1109/JLT.2016.2613131
Hervás J, Tosi D, García-Miquel H, Barrera D, Fernández-Pousa CR, Sales S. KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking. Journal of Lightwave Technology. 2016 Jan 1;PP(99). 7575720. https://doi.org/10.1109/JLT.2016.2613131
Hervás, Javier ; Tosi, Daniele ; García-Miquel, Héctor ; Barrera, David ; Fernández-Pousa, Carlos R. ; Sales, Salvador. / KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking. In: Journal of Lightwave Technology. 2016 ; Vol. PP, No. 99.
@article{7c0354b6c854427ba86612b533ceddbf,
title = "KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking",
abstract = "The Karhunen-Loeve transform (KLT) is used to retrieve the wavelength information of several fiber Bragg gratings (FBGs) that are acting as a multiplexed sensor. The modulated light of a broadband source is launched to the FBG cascade in order to capture the electrical frequency response of the system. Thanks to a dispersive media, the wavelengths of the FBGs are mapped in radiofrequency (RF) delays. Wavelength changes are determined by the amplitude change of the samples in the impulse response, a change which is followed by the eigenvalue calculated by the KLT routine. The use of the KLT routine reduces by three orders of magnitude the amount of points needed to have a sub-degree resolution in temperature sensing, while keeping the accuracy almost intact.",
keywords = "fiber Bragg gratings, Karhunen-Loeve transform, microwave photonics, Optical fiber sensors",
author = "Javier Herv{\'a}s and Daniele Tosi and H{\'e}ctor Garc{\'i}a-Miquel and David Barrera and Fern{\'a}ndez-Pousa, {Carlos R.} and Salvador Sales",
year = "2016",
month = "1",
day = "1",
doi = "10.1109/JLT.2016.2613131",
language = "English",
volume = "PP",
journal = "Journal of Lightwave Technology",
issn = "0733-8724",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "99",

}

TY - JOUR

T1 - KLT Based Interrogation Technique for FBG Multiplexed Sensor Tracking

AU - Hervás, Javier

AU - Tosi, Daniele

AU - García-Miquel, Héctor

AU - Barrera, David

AU - Fernández-Pousa, Carlos R.

AU - Sales, Salvador

PY - 2016/1/1

Y1 - 2016/1/1

N2 - The Karhunen-Loeve transform (KLT) is used to retrieve the wavelength information of several fiber Bragg gratings (FBGs) that are acting as a multiplexed sensor. The modulated light of a broadband source is launched to the FBG cascade in order to capture the electrical frequency response of the system. Thanks to a dispersive media, the wavelengths of the FBGs are mapped in radiofrequency (RF) delays. Wavelength changes are determined by the amplitude change of the samples in the impulse response, a change which is followed by the eigenvalue calculated by the KLT routine. The use of the KLT routine reduces by three orders of magnitude the amount of points needed to have a sub-degree resolution in temperature sensing, while keeping the accuracy almost intact.

AB - The Karhunen-Loeve transform (KLT) is used to retrieve the wavelength information of several fiber Bragg gratings (FBGs) that are acting as a multiplexed sensor. The modulated light of a broadband source is launched to the FBG cascade in order to capture the electrical frequency response of the system. Thanks to a dispersive media, the wavelengths of the FBGs are mapped in radiofrequency (RF) delays. Wavelength changes are determined by the amplitude change of the samples in the impulse response, a change which is followed by the eigenvalue calculated by the KLT routine. The use of the KLT routine reduces by three orders of magnitude the amount of points needed to have a sub-degree resolution in temperature sensing, while keeping the accuracy almost intact.

KW - fiber Bragg gratings

KW - Karhunen-Loeve transform

KW - microwave photonics

KW - Optical fiber sensors

UR - http://www.scopus.com/inward/record.url?scp=85029207004&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85029207004&partnerID=8YFLogxK

U2 - 10.1109/JLT.2016.2613131

DO - 10.1109/JLT.2016.2613131

M3 - Article

VL - PP

JO - Journal of Lightwave Technology

JF - Journal of Lightwave Technology

SN - 0733-8724

IS - 99

M1 - 7575720

ER -