The following thesis work addresses the topic of the detection of vibrational events, such as seismic movements, with measurements performed using fibre-optic communication infrastructures. After a brief exposition on the current state of today's coherent fibre transmission technologies and the use of fibre in sensing applications, the text illustrates and analyses the main fibre-optic based techniques used for seismic sensing to date. In the second part of the paper, by examining and evaluating the equalisation data of a fibre channel, a demonstration of the detection of vibrational events obtained by applying one of the previously described techniques is presented.
Il seguente elaborato di tesi affronta l’argomento del rilevamento di eventi vibrazionali, quali movimenti sismici, con misure effettuate usando le infrastrutture di comunicazione in fibra ottica. Il testo, dopo una sintetica esposizione in ordine alla situazione attuale delle odierne tecnologie di trasmissione coerente in fibra e il livello di sviluppo raggiunto nell’uso della fibra in applicazioni di sensoristica, illustra ed analizza le principali tecniche basate sulle fibre ottiche ad oggi usate per il rilevamento sismico. Nella seconda parte dell’elaborato, mediante l’esame e la valutazione dei dati di equalizzazione di un canale in fibra, è esposta una dimostrazione del rilevamento degli eventi vibrazionali ottenuta applicando una delle tecniche precedentemente descritte.
Analysis of environmental vibrations based on optical fibre communication infrastructures
FARELLA, NICOLO'
2021/2022
Abstract
The following thesis work addresses the topic of the detection of vibrational events, such as seismic movements, with measurements performed using fibre-optic communication infrastructures. After a brief exposition on the current state of today's coherent fibre transmission technologies and the use of fibre in sensing applications, the text illustrates and analyses the main fibre-optic based techniques used for seismic sensing to date. In the second part of the paper, by examining and evaluating the equalisation data of a fibre channel, a demonstration of the detection of vibrational events obtained by applying one of the previously described techniques is presented.File | Dimensione | Formato | |
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Farella_Nicolò.pdf
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https://hdl.handle.net/20.500.12608/36682