Development of simulation tool foor FGB-based phase-OTDR vibration sensors
Koçal, Ertunga Burak, author.

Development of simulation tool foor FGB-based phase-OTDR vibration sensors

Koçal, Ertunga Burak, author.

Yazar Ek Girişi
Koçal, Ertunga Burak, author.

Fiziksel Tanımlama
x, 107 leaves: charts;+ 1 computer laser optical disc.

Over the last twenty years, phase-sensitive optical time-domain reflectometer based distributed vibration sensors have attracted increasing attention as a research topic and commercial product. Due to their capability to detect external perturbations along fiber in real-time, they have found applications in several sectors such as oil&gas pipeline monitoring, border security, transportation, and so on. Recently, the implementation of fiber Bragg gratings into these systems has become popular in order to improve sensing performance and several system configurations adopting a wide range of signal processing techniques have been presented. In this thesis, a simulation tool for distributed vibration sensing systems based on FBG-based phase-sensitive optical time-domain reflectometry is developed. In this context, firstly, the operation principle of optical time-domain reflectometry and system parameters affecting the performance are investigated. Secondly, fiber Bragg grating structures and their implementation into phase-sensitive optical time-domain reflectometer based vibration sensors are studied. By utilizing the one-dimensional impulse response model, fiber Bragg grating implementation-related problems, spectral shadowing crosstalk and multiple reflection crosstalk, and different sensor configurations are analyzed. Based on this model, the numerical simulation tool is developed by constructing fiber, fiber Bragg grating, and probe pulse structures. The operation of the developed simulation tool is verified by comparing obtained results with theory. Then, the capabilities of the developed tool are demonstrated by conducting several simulations with conventional Phase-OTDR and FBG-based Phase-OTDR configurations.

Konu Başlığı
Optical detectors.
Fiber optics.

Yazar Ek Girişi
Yüksel Aldoğan, Kıvılcım,

Tüzel Kişi Ek Girişi
İzmir Institute of Technology. Electronics and Communication Engineering.

Tek Biçim Eser Adı
Thesis (Master)--İzmir Institute of Technology: Electronics and Communication Engineering.
İzmir Institute of Technology: Electronics and Communication Engineering--Thesis (Master).

Elektronik Erişim
Access to Electronic Versiyon.

LibraryMateryal TürüDemirbaş NumarasıYer NumarasıDurumu/İade Tarihi
IYTE LibraryTezT002361TK8360.O67 K761 2021Tez Koleksiyonu