Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Radim Sifta"'
Publikováno v:
Applied Sciences, Vol 11, Iss 12, p 5582 (2021)
This paper is focused on applying a polarization multiplex to passive optical networks to double their transmission bandwidth without significant changes in the distribution network. Although polarization multiplexes are already employed for high-spe
Externí odkaz:
https://doaj.org/article/6de72f3af2ca477090ef2e46403d1ac2
Publikováno v:
Communications, Vol 15, Iss 2A, Pp 155-159 (2013)
In this paper we propose a simulation test using different binary modulation formats in optical network based on the Optical Time Division Multiplexing (OTDM). OTDM in optical networks is used for high speed data generation in point-to-point networks
Externí odkaz:
https://doaj.org/article/d0b3c9b0d33f4d3aa09c768ddf6d4a18
Publikováno v:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2021.
In this paper we present the design of a layered technical textile blocks for measuring temperature and strain using FBG gratings. In addition to research into individual layers of technical textiles, we also deal with joining methods to ensure suffi
Publikováno v:
Seventh European Workshop on Optical Fibre Sensors.
In the paper we present smart textiles for application in critical infrastructures based on fiber Bragg grating sensors. The suitability of the selected polyester fabric was evaluated by experimental measurement. Low elasticity caused an irreversible
Autor:
Miloslav Filka, Vit Novotny, Radim Sifta, Petr Munster, Ondrej Krajsa, Tomas Horvath, Petr Sysel
Publikováno v:
Metrology and Measurement Systems, Vol 22, Iss 1, Pp 111-118 (2015)
METROL MEAS SYST. 2015, vol. [22], issue [1], p. 111-118.
METROL MEAS SYST. 2015, vol. [22], issue [1], p. 111-118.
A sensing system utilizing the standard optical fiber as a distributed sensor for detection and localization of the mechanical vibrations is presented. Vibrations can be caused by various external factors like moving people, cars, trains, and other o
Autor:
Petr Munster, Petr Sysel, Radim Sifta, Miloslav Filka, Josef Vojtech, Tomas Horvath, Vit Novotny, Stanislav Sima
Publikováno v:
SPIE Proceedings.
Phase-sensitive optical time-domain reectometry (Φ-OTDR) seems to be the most appropriate solution for acoustic vibration along standard optical fiber detection. In general the sensing system measures phase changes of the received Rayleigh back-scat
Publikováno v:
TSP
A great extension of the Fiber To The Home (FTTH) services is provided by Internet service providers through using the Passive Optical Networks (PON) technology. Another technology offered by telecommunication companies is VDSL2. These providers offe