|
|
Distributed temperature sensor
Holík, Tomáš ; Čučka, Milan (referee) ; Münster, Petr (advisor)
Distributed temperature sensors are currently widely used. They are used for measuring temperature using optical fiber. DTS systems measure the temperature along the optical fiber. Optical fiber is used as a direct source of information, not as a carrier. That is, optical fiber is used as a sensor measuring the temperature. This work includes designs of the measuring system DTS using Raman scattering and Mach-Zehnder modulator in a single-mode fiber.
|
|
|
Optical fibre utilization for localization of mechanical vibrations
Parduba, Jiří ; Rajmic, Pavel (referee) ; Novotný, Vít (advisor)
The thesis is focused on physical principles of signal transmission by optical fiber and effects that may have influence on such transmission. This knowledge is acquired with regard to future usage of optical fiber as a sensor for detection and localization of mechanical vibration. In the thesis, mentioned knowledge is taken in account and also there are described methods, which allow mechanical vibration for dozens of km. At the conclusion the laboratory sollution is suggested, allowing detection and localization in vast distance with possibility of real test in practice.The testing curcuits are used for measurement and results are processed for purpose of detection and localization of source. The measurement itself was made by testing curcuits and results were processed for purpose of detection and localization of source.
|
|
| |
|
|
The Influence of Modulations in optical networks based on OTDM
Kočí, Lukáš ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The bachelor thesis inquires into influence of modulations to transfer in optical nets, with the 320 Gbit/s zone width, based on the OTDM principle. There are also explained effects impacting on the signal transfer by optical fiber, single-mode and multi-mode op- tical fibers are described here and also principles of used technologies of multiplexing are explained. There is compiled the proposal of transmission system, which is subsequently simulated in the OptSim programme. On the initial simulation model there are the mo- dulation formats tested progressively, patterned on theoretic knowledges and its influence on the transmission quality is evaluated.
|
|
|
Distributed temperature sensor
Holík, Tomáš ; Čučka, Milan (referee) ; Münster, Petr (advisor)
Distributed temperature sensors are currently widely used. They are used for measuring temperature using optical fiber. DTS systems measure the temperature along the optical fiber. Optical fiber is used as a direct source of information, not as a carrier. That is, optical fiber is used as a sensor measuring the temperature. This work includes designs of the measuring system DTS using Raman scattering and Mach-Zehnder modulator in a single-mode fiber.
|
|
| |
|
|
The Influence of Modulations in optical networks based on OTDM
Kočí, Lukáš ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The bachelor thesis inquires into influence of modulations to transfer in optical nets, with the 320 Gbit/s zone width, based on the OTDM principle. There are also explained effects impacting on the signal transfer by optical fiber, single-mode and multi-mode op- tical fibers are described here and also principles of used technologies of multiplexing are explained. There is compiled the proposal of transmission system, which is subsequently simulated in the OptSim programme. On the initial simulation model there are the mo- dulation formats tested progressively, patterned on theoretic knowledges and its influence on the transmission quality is evaluated.
|
|
|
Optical fibre utilization for localization of mechanical vibrations
Parduba, Jiří ; Rajmic, Pavel (referee) ; Novotný, Vít (advisor)
The thesis is focused on physical principles of signal transmission by optical fiber and effects that may have influence on such transmission. This knowledge is acquired with regard to future usage of optical fiber as a sensor for detection and localization of mechanical vibration. In the thesis, mentioned knowledge is taken in account and also there are described methods, which allow mechanical vibration for dozens of km. At the conclusion the laboratory sollution is suggested, allowing detection and localization in vast distance with possibility of real test in practice.The testing curcuits are used for measurement and results are processed for purpose of detection and localization of source. The measurement itself was made by testing curcuits and results were processed for purpose of detection and localization of source.
|
guest ::
