Επεξεργασία σήματος σε συχνότητες μικροκυμάτων στον οπτικό τομέα με τη χρήση οπτικών φίλτρων
Date Issued
2013
Author(s)
Advisor
Abstract
Within the context of the present thesis, several optical filters are studied for the processing of
microwave signals in the optical domain. A brief introduction to the transmission characteristics of
optical fibers is presented, followed by a summary of filter theory characteristics and the basic
properties of the analog and digital filters. There is also a detailed reference to the principles of
filter operation and the performance characteristics and the constraints in the design of optical
filters at microwave frequencies.
At the second stage of the present assignment there is an extensive description of the practical
applications and operating principles of the optical filters, as well as the modeling and comparison
of the results of different categories of optical filters using Matlab software. The following
systems were studied: Incoherent optical filters, Coherent optical filters, Fabry-Perot
interferometers (single/double crossing) and the Mach-Zehnder interferometers as optical filters of
simple form and with the use of two semiconductors amplifiers with the same characteristics.
The use of the Matlab software for modeling the characteristics and the behavior of the optical
filters at microwave frequencies, offers a better understanding of their behavior, leading to the
development of reliable models for the interpretation and prediction of future experimental results.
microwave signals in the optical domain. A brief introduction to the transmission characteristics of
optical fibers is presented, followed by a summary of filter theory characteristics and the basic
properties of the analog and digital filters. There is also a detailed reference to the principles of
filter operation and the performance characteristics and the constraints in the design of optical
filters at microwave frequencies.
At the second stage of the present assignment there is an extensive description of the practical
applications and operating principles of the optical filters, as well as the modeling and comparison
of the results of different categories of optical filters using Matlab software. The following
systems were studied: Incoherent optical filters, Coherent optical filters, Fabry-Perot
interferometers (single/double crossing) and the Mach-Zehnder interferometers as optical filters of
simple form and with the use of two semiconductors amplifiers with the same characteristics.
The use of the Matlab software for modeling the characteristics and the behavior of the optical
filters at microwave frequencies, offers a better understanding of their behavior, leading to the
development of reliable models for the interpretation and prediction of future experimental results.
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