Power modulated temperature sensor with inscribed fibre Bragg gratings

• Autorzy: Mądry M. , Markowski K. , Jędrzejewski K. , Bereś-Pawlik E.

Identyfikatory

DOI

10.1515/oere-2016-002

• Języki publikacji: EN

Abstrakty

EN

The Fibre Bragg Grating (FBG) based temperature optical sensor has been designed and demonstrated. FBGs have been modelled and fabricated so as to convert the Bragg wavelength shift into the intensity domain. The main experimental setup consists of a filtering FBG and two scanning FBGs, respectively, left and right scanning FBG, whereby scanning FBGs are symmetrically located on the slopes of the filtering FBG. Such an approach allows for the modulation of power for the propagating optical signal depending on the ambient temperature at the scanning FBG location. A positive or negative change of power is determined by the spectral response of the FBG. Experimental research of the scanning FBGs’ sensitivities emphasized that the key issue is the filtering FBG. A different level of sensitivity could be achieved due to the spectral characteristic of the filtering FBG. Omitting advanced and high-cost devices, the FBG-based temperature sensor is presented. The FBG-based sensor setup could yield resolution of 1°C for the range of temperature 0.5°C to 52.5°C. The experimental study has been performed as a base for an easy-placed sensor system to monitor external parameters in real environment.

Słowa kluczowe

EN

fibre Bragg gratings; temperature sensor system; scanning FBGs; reflected optical power; intensity-modulated optical sensor

• Wydawca: Stowarzyszenie Elektryków Polskich ; Polska Akademia Nauk ; Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
• Czasopismo: Opto-Electronics Review
• Rocznik: 2016
• Tom: Vol. 24, No. 4
• Strony: 183--190
• Opis fizyczny: Bibliogr. 27 poz., rys., wykr.

Twórcy

autor

Mądry M.

• Faculty of Electronics, Wrocław University of Technology, ul. Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland

autor

Markowski K.

• Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland

autor

Jędrzejewski K.

• Institute of Electronic Systems, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warszawa, Poland

autor

Bereś-Pawlik E.

• Faculty of Electronics, Wrocław University of Technology, ul. Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland

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