Fiber Bragg Grating vibration sensor with DFB laser diode

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F12%3A86085109" target="_blank" >RIV/61989100:27240/12:86085109 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.2010467" target="_blank" >http://dx.doi.org/10.1117/12.2010467</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2010467" target="_blank" >10.1117/12.2010467</a>

Result language
angličtina
Original language name
Fiber Bragg Grating vibration sensor with DFB laser diode
Original language description
The Fiber Bragg Grating (FBG) sensors are nowadays used in many applications. Thanks to its quite big sensitivity to a surrounding environment, they can be used for sensing of temperature, strain, vibration or pressure. A fiber Bragg grating vibration sensor, which is interrogated by a distributed feedback laser diode (DFB) is demonstrated in this article. The system is based on the intensity modulation of the narrow spectral bandwidth of the DFB laser, when the reflection spectrum of the FBG sensor isshifted due to the strain that is applied on it in form of vibrations caused by acoustic wave pressure from loud speaker. The sensor?s response in frequency domain and strain is measured; also the factor of sensor pre-strain impact on its sensitivity isdiscussed.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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